Youssef M. A. Hashash

Research Interests

• Tunneling in Soil and Rock
• Discrete Element Modeling
• Deep Learning
• Bio-engineering
• Visualization in geomechanics
• Soil-structure interaction
• Numerical modeling in geomechanics
• Inverse analysis
• Deep excavations
• Underground structures
• Seismic Site response
• Geotechnical Earthquake Engineering
• Geotechnical Engineering

Research Statement

Dr. Hashash's research interests include deep excavations, tunneling, discrete element modeling, soil constitutive behavior, earthquake engineering, numerical modeling, and soil-structure interaction. He is also involved in the use of deep learning, artificial intelligence, visualization and virtual reality techniques in geotechnical engineering applications.

Undergraduate Research Opportunities

Please contact me with expression of interest. I encourage undergraduate students to join my research group, and often have several students working with graduate students on challenging and exciting research projects. in my group.

Primary Research Area

• Geotechnical Engineering

Research Areas

• Geotechnical Engineering
• Sustainable and Resilient Infrastructure Systems

Books Authored or Co-Authored (Original Editions)

• A Decision Framework for Managing the Spirit Lake and Toutle River System at Mount St. Helens, A report to National Academy of Engineering. Published 2017.
• Sustainable Underground Infrastructure Development - A report to National Academy of Engineering. Published 2013.

Books Edited or Co-Edited (Original Editions)

• Earth Retention Conference 3 (2010), Edited by Richard J. Finno, Ph.D., P.E.; Youssef M. A. Hashash, Ph.D., P.E.; Pedro Arduino, Ph.D., P.E., Geotechnical Special Publications (GSP) 208.
• Design and Construction of Earth Retaining Systems, American Society of Civil Engineers, Geotechnical Special Publication No. 83, 1998, Co-Editors: R.J. Finno, Y. Hashash, C. L. Ho, and B.P. Sweeney.

Selected Articles in Journals

• Geotechnical and GeologicalReconnaissance Observations of the February 6th 2023 T�rkiye Earthquakes1Robb E. S. Moss.1, Erhand Altunel2, Patrick Bassal3, Jon B. Bray4, Tristan Buckreis5, Onder K.Cetin6, Kevin Clahan7, Emre Duman8, David Frost8, YoussefHashash9, Richard D. Koehler10,Ozgur Kozaci11,Jorge MarioLozano8,JorgeMacedo8,DianeMoug12,ElliotNichols8,MenzerPehlivan13,RenminPretell5,Jon P.Stewart5,KristinUlmer14,CengizYildirim1,in press.
• Ilhan, Okan, Youssef MA Hashash, Jonathan P. Stewart, Ellen M. Rathje, Sissy Nikolaou, and Kenneth W. Campbell. "Simulated site amplification for Central and Eastern North America: Data set development and amplification models." Earthquake Spectra 40, no. 1 (2024): 200-229.
• Liu, Z., Shoemaker, T., Tutumluer, E., & Hashash, Y. M. A. (2024). Toward Large-Scale Simulation of Railroad Dynamics: Coupled Train–Track–Discrete Element Method Model. Transportation Research Record, 0(0).
• Ramos-Sepúlveda ME, Stewart JP, Parker GA, et al. Data-driven adjustments for combined use of NGA-East hard-rock ground motion and site amplification models. Earthquake Spectra. 2024;0(0).
• AlKhatib, Karim, Youssef MA Hashash, Katerina Ziotopoulou, and James Heins. "Centrifuge and Numerical Modeling of the Seismic Response of Buried Water Supply Reservoirs." Journal of Geotechnical and Geoenvironmental Engineering 150, no. 3 (2024): 04023141.
• AlKhatib, K., Hashash, Y.M., Ziotopoulou, K. and Morales, B., 2023. Hydrodynamic pressures on rigid walls subjected to cyclic and seismic ground motions. Earthquake Engineering & Structural Dynamics.
• Shoemaker, T.A., Beaino, C., Centella R, D.M., Zhao, W., Tanissa, C., Lawrence, J. and Hashash, Y.M., 2023. Generative AI: The New Geotechnical Assistant?. Journal of Geotechnical and Geoenvironmental Engineering, 149(10), p.02823004.
• Bhaumik, L., Rutherford, C.J., Olson, S.M., Hashash, Y.M., Numanoglu, O.A., Cerna-Diaz, A.A. and Weaver, T., 2023. A Multidirectional Cyclic Direct Simple Shear Device for Characterizing Dynamic Soil Behavior. Geotechnical Testing Journal, 46(2).
• Numanoglu, Ozgun A., Youssef MA Hashash, Scott M. Olson, Alfonso Cerna-Diaz, Cassandra J. Rutherford, Lopamudra Bhaumik, and Thomas Weaver. "A simplified three-dimensional constitutive model for seismic modeling of dense sands." Soil Dynamics and Earthquake Engineering 167 (2023): 107794.
• Qian, Yu, Erol Tutumluer, Youssef MA Hashash, and Jamshid Ghaboussi. "Triaxial testing of new and degraded ballast under dry and wet conditions." Transportation Geotechnics 34 (2022): 100744.
• Liu, Zhongyi, Bin Feng, and Erol Tutumluer. "Effect of Ballast Degradation on Track Dynamic Behavior Using Discrete Element Modeling." Transportation Research Record (2022): 03611981221083921.
• Salah Sadek; Mayssa Dabaghi; Timothy M O’Donnell; Paolo Zimmaro; Youssef MA Hashash; Jonathan Paul Stewart (2021) "Impacts of 2020 Beirut Explosion on Port Infrastructure and Nearby Buildings " Natural Hazards Review, Vol 23, Issue 2 - May 2022
• Pervaiz, U., Park, D., Hashash, Y. and Xing, G., 2021. Testing performance of pore pressure models implemented in one-dimensional site response analysis program against centrifuge test data measured in mildly sloping ground. Soil Dynamics and Earthquake Engineering, 149, p.106867.
• Goulet, Christine A, Tadahiro Kishida, Timothy D Ancheta, Chris H Cramer, Robert B Darragh, Walter J Silva, Youssef MA Hashash, et al. “PEER NGA-East Database.” Earthquake Spectra 37, no. 1_suppl (July 2021): 1331–53.
• Hashash, Youssef MA, Okan Ilhan, Halil Uysal, Jonathan P Stewart, Sissy Nikolaou, Ellen M Rathje, Kenneth W Campbell, and Walter J Silva (2021). “Application of Empirical and Simulation-Based Site Amplification Models for Central and Eastern North America to Selected Sites.” Earthquake Spectra, (June 2021).
• Bin Feng, Yuamar Imarrazan Basarah, Qiusheng Gu, Xiang Duan, Xuecheng Bian, Erol Tutumluer, Youssef M.A. Hashash, Hai Huang, (2021) Advanced full-scale laboratory dynamic load testing of a ballasted high-speed railway track, Transportation Geotechnics, Volume 29, 2021, 100559, ISSN 2214-3912.
• Eun Hyun Park, Volodymyr Kindratenko, Youssef M.A. Hashash, (2021) Shared memory parallelization for high-fidelity large-scale 3D polyhedral particle simulations, Computers and Geotechnics, 2021, 104008, ISSN 0266-352X,
• Usman Pervaiz, Duhee Park, Youssef Hashash, Guangchao Xing, (2021) Testing performance of pore pressure models implemented in one-dimensional site response analysis program against centrifuge test data measured in mildly sloping ground, Soil Dynamics and Earthquake Engineering, Volume 149, 2021, 106867, ISSN 0267-7261.
• Aaqib, Muhammad, Duhee Park, Muhammad Bilal Adeel, Youssef M A Hashash, and Okan Ilhan (2021). “Simulation-Based Site Amplification Model for Shallow Bedrock Sites in Korea.” Earthquake Spectra, (January 2021).
• Xu, B., Rathje, E.M., Hashash, Y., Stewart, J., Campbell, K. and Silva, W.J., 2020. κ0 for soil sites: Observations from KiK-net sites and their use in constraining small-strain damping profiles for site response analysis. Earthquake Spectra, 36(1), pp.111-137.
• Stewart, J.P., Parker, G.A., Atkinson, G.M., Boore, D.M., Hashash, Y.M. and Silva, W.J., 2020. Ergodic site amplification model for central and eastern North America. Earthquake Spectra, 36(1), pp.42-68.
• Hashash, Y.M., Ilhan, O., Hassani, B., Atkinson, G.M., Harmon, J. and Shao, H., 2020. Significance of site natural period effects for linear site amplification in central and eastern North America: Empirical and simulation-based models. Earthquake Spectra, 36(1), pp.87-110.
• Cerna-Diaz, Alfonso, Scott M. Olson, Youssef MA Hashash, Ozgun A. Numanoglu, Cassandra J. Rutherford, Lopamudra Bhaumik, and Thomas Weaver. "Response of Sands to Multidirectional Dynamic Loading in Centrifuge Tests." Journal of Geotechnical and Geoenvironmental Engineering 146, no. 10 (2020): 04020109.
• Nikolaou, S., Hashash, Y. M., Sukumaran, B., Sacks, A., Burlingame, M. J., Baxter, C., Bradshaw, A., Wooten, L., Lacy, H., Moss, C., Daraio, J. A., O’Rourke, T. D. (2020). Geotechnical Effects and a 6-Year Outlook of the 2012 Hurricane Sandy in the Eastern United States, Vol. 5, Issue 4, p.106-128. doi: 10.4417/IJGCH-05-04-06
• Tsinidis, Grigorios, Filomena de Silva, Ioannis Anastasopoulos, Emilio Bilotta, Antonio Bobet, Youssef MA Hashash, Chuan He et al. "Seismic behaviour of tunnels: From experiments to analysis." Tunnelling and Underground Space Technology 99 (2020): 103334.
• Mei, X., Olson, S., Hashash, Y., (2020). "Evaluation of a simplified soil constitutive model considering implied strength and porewater pressure generation for 1-D seismic site response". Canadian Geotechnical Journal.
• Bhaumik, Lopamudra, Cassandra J. Rutherford, Scott M. Olson, Youssef MA Hashash, Alfonso Cerna-Diaz, Ozgun A. Numanoglu, and Thomas Weaver. "Effect of Specimen Preparation on Volumetric Behavior of Sands under Cyclic Multidirectional Shear." Geotechnical Testing Journal 43, no. 5 (2020).
• S. Yang, O. Baltaji, A. C. Singer and Y. M. A. Hashash, "Development of an Underground Through-Soil Wireless Acoustic Communication System," in IEEE Wireless Communications, vol. 27, no. 1, pp. 154-161, February 2020.
• Olson, Scott M., Xuan Mei, and Youssef MA Hashash. "Nonlinear Site Response Analysis with Pore-Water Pressure Generation for Liquefaction Triggering Evaluation." Journal of Geotechnical and Geoenvironmental Engineering 146, no. 2 (2020): 04019128.
• Hashash, Youssef MA, Okan Ilhan, Joseph A. Harmon, Grace A. Parker, Jonathan P. Stewart, Ellen M. Rathje, Kenneth W. Campbell, and Walter J. Silva. "Nonlinear site amplification model for ergodic seismic hazard analysis in central and eastern North America." Earthquake Spectra (2020).
• Stewart, Jonathan P., Grace A. Parker, Gail M. Atkinson, David M. Boore, Youssef MA Hashash, and Walter J. Silva. "Ergodic site amplification model for central and eastern North America." Earthquake Spectra (2019): 8755293019878185.
• Harmon, Joseph, Youssef MA Hashash, Jonathan P. Stewart, Ellen M. Rathje, Kenneth W. Campbell, Walter J. Silva, and Okan Ilhan. "Site amplification functions for central and eastern North America–Part II: Modular simulation-based models." Earthquake Spectra 35, no. 2 (2019): 815-847.
• Harmon, Joseph, Youssef MA Hashash, Jonathan P. Stewart, Ellen M. Rathje, Kenneth W. Campbell, Walter J. Silva, Boqin Xu, Michael Musgrove, and Okan Ilhan. "Site Amplification Functions for Central and Eastern North America–Part I: Simulation Data Set Development." Earthquake Spectra 35, no. 2 (2019): 787-814.
• Parker, Grace A., Jonathan P. Stewart, Youssef MA Hashash, Ellen M. Rathje, Kenneth W. Campbell, and Walter J. Silva (2019). "Empirical linear seismic site amplification in central and eastern North America." Earthquake Spectra 35, no. 2 (2019): 849-881.
• Xu, Boqin, Ellen M. Rathje, Youssef Hashash, Jonathan Stewart, Kenneth Campbell, and Walter J. Silva. "0 for Soil Sites: Observations from Kik-net Sites and Their Use in Constraining Small-Strain Damping Profiles for Site Response Analysis." Earthquake Spectra (2019): 8755293019878188.
• Hashash, Youssef MA, Okan Ilhan, Behzad Hassani, Gail M. Atkinson, Joseph Harmon, and Hua Shao. "Significance of site natural period effects for linear site amplification in central and eastern North America: Empirical and simulation-based models." Earthquake Spectra (2019): 8755293019878198.
• Feng, B., Park, E. H, Huang, H., Li, W., Tutumluer, E., Hashash, Y. M., & Bian, X. (2019). "Discrete element modeling of full-scale ballasted track dynamic response from an innovative high-speed rail testing facility". Transportation Research Board 2673(9).
• Qian, Yu, Seung Jae Lee, Erol Tutumluer, Youssef MA Hashash, and Jamshid Ghaboussi (2018). "Role of initial particle arrangement in ballast mechanical behavior." International Journal of Geomechanics 18, no. 3 04017158.
• Hashash Youssef, M. A., S. Dashti, M. Musgrove, K. Gillis, M. Walker, K. Ellison and I. Basarah Yuamar (2018). "Influence of Tall Buildings on Seismic Response of Shallow Underground Structures." Journal of Geotechnical and Geoenvironmental Engineering 144(12): 04018097.
• Xuan Mei, Scott M. Olson, Youssef M.A. Hashash, "Empirical porewater pressure generation model parameters in 1-D seismic site response analysis," Soil Dynamics and Earthquake Engineering Volume 114, November 2018, Pages 563-567
• Asmar, R. and Hashash, Y.M.A. (2018) "A New Triaxial Apparatus Imposing Nonuniform Shearing for Deep Learning of Soil Behavior" ASTM Geotechnical Testing Journal, 42(3).
• Lizundia B, Davidson RA, Hashash YMA, Olshansky R. Overview of the 2015 Gorkha, Nepal (2017), Earthquake and the Earthquake Spectra Special Issue. Earthquake Spectra. 2017;33(1_suppl):1-20.
• Musgrove, M., Harmon, J., Hashash, Y. M., & Rathje, E. (2017). Evaluation of the DEEPSOIL Software on the DesignSafe Cyberinfrastructure. Journal of Geotechnical and Geoenvironmental Engineering, 143(9), 02817005.
• Qian, Y., Lee, S. J., Tutumluer, E., Hashash, Y. M., & Ghaboussi, J. (2017). Role of initial particle arrangement in ballast mechanical behavior. International Journal of Geomechanics, 18(3), 04017158.
• Koutsoftas, D. C., Karina, K., & Hashash, Y. M. (2017). Discussion of “Index test method for estimating the effective preconsolidation stress in clay deposits” by Karim Kootahi and Paul W. Mayne. Journal of Geotechnical and Geoenvironmental Engineering, 143(10), 07017030.
• Qian, Y., Boler, H., Moaveni, M., Tutumluer, E., Hashash, Y. M., & Ghaboussi, J. (2017). Degradation-related changes in ballast gradation and aggregate particle morphology. Journal of Geotechnical and Geoenvironmental Engineering, 143(8), 04017032.
• Parker, G. A., Harmon, J. A., Stewart, J. P., Hashash, Y. M., Kottke, A. R., Rathje, E. M., ... & Campbell, K. W. (2017). Proxy‐based VS 30 estimation in central and eastern North America. Bulletin of the Seismological Society of America, 107(1), 117-131.
• Olson, S. M., Hashash, Y. M., Muszynski, M. R., & Phillips, C. (2017). Passive wedge formation and limiting lateral pressures on large foundations during lateral spreading. Journal of Geotechnical and Geoenvironmental Engineering, 143(7), 04017027.
• Moon, S. W., Hashash, Y. M., & Park, D. (2017). USGS hazard map compatible depth-dependent seismic site coefficients for the Upper Mississippi Embayment. KSCE Journal of Civil Engineering, 21(1), 220-231.
• Régnier, J., Bonilla, L. F., Bard, P. Y., Bertrand, E., Hollender, F., Kawase, H., ... & Boldini, D. (2016). International benchmark on numerical simulations for 1D, nonlinear site response (PRENOLIN): Verification phase based on canonical cases. Bulletin of the Seismological Society of America, 106(5), 2112-2135. Julie Régnier Luis‐Fabian Bonilla Pierre‐Yves Bard Etienne Bertrand Fabrice Hollender Hiroshi Kawase Deborah Sicilia Pedro Arduino Angelo Amorosi Dominiki Asimaki Daniela Boldini Long Chen Anna Chiaradonna Florent DeMartin Ahmed Elgamal Gaetano Falcone Evelyne Foerster Sebastiano Foti Evangelia Garini George Gazetas Céline Gélis Alborz Ghofrani Amalia Giannakou James Gingery Nathalie Glinsky Joseph Harmon Youssef Hashash Susumu Iai Steve Kramer Stavroula Kontoe Jozef Kristek Giuseppe Lanzo Annamaria di Lernia Fernando Lopez‐Caballero Marianne Marot Graeme McAllister E. Diego Mercerat Peter Moczo Silvana Montoya‐Noguera Michael Musgrove Alex Nieto‐Ferro Alessandro Pagliaroli Federico Passeri Aneta Richterova Suwal Sajana Maria Paola Santisi d’Avila Jian Shi Francesco Silvestri Mahdi Taiebat Giuseppe Tropeano Didrik Vandeputte Luca Verrucci
• Fleming, K. L., Hashash, Y. M., McLandrich, S., O’Riordan, N., & Riemer, M. (2016). Novel technologies for deep-excavation digital construction records. Practice Periodical on Structural Design and Construction, 21(4), 05016002.
• Muszynski, M. R., Olson, S. M., Hashash, Y. M. A., & Phillips, C. (2016). Earth pressure measurements using tactile pressure sensors in a saturated sand during static and dynamic centrifuge testing. Geotechnical Testing Journal, 39(3), 371-390.
• Dashti, S., Hashash, Y. M. A., Gillis, K., Musgrove, M., & Walker, M. (2016). Development of dynamic centrifuge models of underground structures near tall buildings. Soil Dynamics and Earthquake Engineering, 86, 89-105.
• Groholski, D. R., Hashash, Y. M., Kim, B., Musgrove, M., Harmon, J., & Stewart, J. P. (2016). Simplified model for small-strain nonlinearity and strength in 1D seismic site response analysis. Journal of Geotechnical and Geoenvironmental Engineering, 142(9), 04016042.
• Ibrahim, H., El-Rayes, K., & Hashash, Y. (2016). Optimizing the construction and use of shared wheat storage facilities. Transactions of the ASABE, 59(1), 371-382.
• Kim, B., Hashash, Y. M., Stewart, J. P., Rathje, E. M., Harmon, J. A., Musgrove, M. I., ... & Silva, W. J. (2016). Relative differences between nonlinear and equivalent-linear 1-d site response analyses. Earthquake Spectra, 32(3), 1845-1865.
• Cording, E. J., Hashash, Y. M. A., & Oh, J. (2015). Analysis of pillar stability of mined gas storage caverns in shale formations. Engineering Geology, 184, 71-80.
• Moss, Robb Eric S., Eric M. Thompson, D. Scott Kieffer, Binod Tiwari, Youssef M. A. Hashash, Indra Acharya, Basanta Adhikari, Domniki Asimaki, Kevin B. Clahan, Brian D. Collins, Sachindra Dahal, Randall W. Jibson, Diwakar Khadka, Amy Macdonald, Chris L. M. Madugo, H. Benjamin Mason, Menzer Pehlivan, Deepak Rayamajhi, and Sital Uprety (2015). Geotechnical effects of the 2015 magnitude 7.8 Gorkha, Nepal, earthquake and aftershocks.” Seismological Research Letters, 86(6).
• Hashash, Y. M., Dashti, S., Romero, M. I., Ghayoomi, M., & Musgrove, M. (2015). Evaluation of 1-D seismic site response modeling of sand using centrifuge experiments. Soil Dynamics and Earthquake Engineering, 78, 19-31.
• Qian, Y., Tutumluer, E., Hashash, Y. M., Ghaboussi, J., & Davis, D. D. (2015). Ballast settlement ramp to mitigate differential settlement in a bridge transition zone. Transportation Research Record: Journal of the Transportation Research Board, (2476), 45-52.
• Gillis, K., Dashti, S., & Hashash, Y. M. (2015). Dynamic calibration of tactile sensors for measurement of soil pressures in centrifuge. Geotechnical Testing Journal, 38(3), 261-274.
• Ibrahim, H., El-Rayes, K., & Hashash, Y. (2015). Optimizing the storage and transportation of wheat in developing countries. Applied engineering in agriculture, 31(4), 669-678.
• Kim, Byungmin, Youssef MA Hashash, Ellen M. Rathje, Jonathan P. Stewart, Sidao Ni, Paul G. Somerville, Albert R. Kottke, Walter J. Silva, and Kenneth W. Campbell. "Subsurface shear wave velocity characterization using P-wave seismograms in Central and Eastern North America." Earthquake Spectra 32, no. 1 (2016): 143-169.
• Moon, S. W., & Hashash, Y. M. (2015). From direct simple shear test to soil model development and supported excavation simulation: integrated computational-experimental soil behavior characterization framework. Journal of Geotechnical and Geoenvironmental Engineering, 141(11), 04015050.
• Lee, S. J., & Hashash, Y. (2015). iDEM: An impulse‐based discrete element method for fast granular dynamics. International Journal for Numerical Methods in Engineering, 104(2), 79-103.
• Hashash, Y. M., Abrahamson, N. A., Olson, S. M., Hague, S., & Kim, B. (2015). Conditional mean spectra in site-specific seismic hazard evaluation for a major river crossing in the Central United States. Earthquake Spectra, 31(1), 47-69.
• Hashash, Y. M., & Romero-Arduz, M. I. (2014). Seismic Design of Tunnels. Encyclopedia of Earthquake Engineering, 1-29.
• Muszynski, M. R., Olson, S. M., Hashash, Y. M., & Phillips, C. (2014). Repeatability of centrifuge tests containing a large, rigid foundation subjected to lateral spreading. Geotechnical Testing Journal, 37(6), 1002-1015.
• Qian, Y., Boler, H., Moaveni, M., Tutumluer, E., Hashash, Y., & Ghaboussi, J. (2014). Characterizing ballast degradation through Los Angeles abrasion test and image analysis. Transportation Research Record: Journal of the Transportation Research Board, (2448), 142-151.
• Song, H., & Hashash, Y. M. (2015). Characterization of stress–strain behaviour of red blood cells (RBCs), part II: response of malaria-infected RBCs. Inverse Problems in Science and Engineering, 23(3), 413-424.
• Song, H. and Y. M. A. Hashash (2014). "Characterization of stress–strain behaviour of red blood cells (RBCs), part I: methodology development and application to healthy RBCs." Inverse Problems in Science and Engineering 23(6): 913-931.
• Groholski, D. R., Hashash, Y. M., & Matasovic, N. (2014). Learning of pore pressure response and dynamic soil behavior from downhole array measurements. Soil Dynamics and Earthquake Engineering, 61, 40-56.
• Hashash, Y. M., Kottke, A. R., Stewart, J. P., Campbell, K. W., Kim, B., Moss, C., ... & Silva, W. J. (2014). Reference rock site condition for central and eastern North America. Bulletin of the Seismological Society of America, 104(2), 684-701.
• Tutumluer, E., Qian, Y., Hashash, Y. M., Ghaboussi, J., & Davis, D. D. (2013). Discrete element modelling of ballasted track deformation behaviour. International Journal of Rail Transportation, 1(1-2), 57-73.
• Hashash, Y. M., Kim, B., Olson, S. M., & Moon, S. (2014). Geotechnical issues and site response in the Central US. In Seismic Hazard Design Issues in the Central United States (pp. 71-90).
• Groholski, D. R., & Hashash, Y. (2013). Development of an inverse analysis framework for extracting dynamic soil behavior and pore pressure response from downhole array measurements. International Journal for Numerical and Analytical Methods in Geomechanics, 37(12), 1867-1890.
• Kim, B., & Hashash, Y. M. (2013). Site response analysis using downhole array recordings during the March 2011 Tohoku-Oki earthquake and the effect of long-duration ground motions. Earthquake Spectra, 29(s1), S37-S54.
• Qian, Y., Lee, S., Tutumluer, E., Hashash, Y., Mishra, D., & Ghaboussi, J. (2013). Simulating ballast shear strength from large-scale triaxial tests: Discrete element method. Transportation Research Record: Journal of the Transportation Research Board, (2374), 126-135.
• Phillips, C., Kottke, A. R., Hashash, Y. M., & Rathje, E. M. (2012). Significance of ground motion time step in one dimensional site response analysis. Soil Dynamics and Earthquake Engineering, 43, 202-217.
• Phillips, C., Hashash, Y. M., Olson, S. M., & Muszynski, M. R. (2012). Significance of small strain damping and dilation parameters in numerical modeling of free-field lateral spreading centrifuge tests. Soil Dynamics and Earthquake Engineering, 42, 161-176.
• Lee, S. J., Hashash, Y. M., & Nezami, E. G. (2012). Simulation of triaxial compression tests with polyhedral discrete elements. Computers and Geotechnics, 43, 92-100.
• Hashash, Y. M., Kim, B., Olson, S. M., & Ahmad, I. (2012). Seismic hazard analysis using discrete faults in Northwestern Pakistan: Part II–results of seismic hazard analysis. Journal of Earthquake Engineering, 16(8), 1161-1183.
• Hashash, Y. M., Kim, B., Olson, S. M., & Ahmad, I. (2012). Seismic hazard analysis using discrete faults in Northwestern Pakistan: Part I–methodology and evaluation. Journal of Earthquake Engineering, 16(7), 963-994.
• Verdugo, R., Sitar, N., Frost, J. D., Bray, J. D., Candia, G., Eldridge, T., ... & Urzua, A. (2012). Seismic performance of earth structures during the February 2010 Maule, Chile, earthquake: dams, levees, tailings dams, and retaining walls. Earthquake Spectra, 28(S1), S75-S96.
• Ledezma, C., Hutchinson, T., Ashford, S. A., Moss, R., Arduino, P., Bray, J. D., ... & Kayen, R. (2012). Effects of ground failure on bridges, roads, and railroads. Earthquake Spectra, 28(S1), S119-S143.
• Elnashai, A. S., Gencturk, B., Kwon, O. S., Hashash, Y. M., Kim, S. J., Jeong, S. H., & Dukes, J. (2012). The Maule (Chile) earthquake of February 27, 2010: Development of hazard, site specific ground motions and back-analysis of structures. Soil Dynamics and Earthquake Engineering, 42, 229-245.
• Hashash, Y. M., Mwafy, A., Elnashai, A. S., & Hajjar, J. F. (2012). Development of a multi-disciplinary graduate course on consequence-based earthquake risk management. International Journal of Continuing Engineering Education and Life Long Learning, 22(1-2), 127-147.
• Bray, J., Rollins, K., Hutchinson, T., Verdugo, R., Ledezma, C., Mylonakis, G., ... & Kayen, R. (2012). Effects of ground failure on buildings, ports, and industrial facilities. Earthquake Spectra, 28(S1), S97-S118.
• Ahmad, I., Hashash, Y., Khan, A. N., & Waseem, M. (2011). Site amplification factor at Mardan. Journal of Himalayan Earth Sciences, 44(2).
• Mwafy, A. M., Kwon, O. S., Elnashai, A., & Hashash, Y. M. (2010). Wave passage and ground motion incoherency effects on seismic response of an extended bridge. Journal of Bridge Engineering, 16(3), 364-374.
• Hashash, Y., Song, H., & Osouli, A. (2011). Three‐dimensional inverse analyses of a deep excavation in Chicago clays. International Journal for Numerical and Analytical Methods in Geomechanics, 35(9), 1059-1075.
• Osouli, A., & Hashash, Y. M. (2010). Case studies of prediction of excavation response using learned excavation performance. ISSMGE International Journal of Geoengineering Case Histories, 1(4), 340-366.
• Tsai, C. C., & Hashash, Y. M. (2010). Evaluation of two approaches to simulate spatially variable ground motions. Journal of Earthquake Engineering, 14(2), 293-308.
• Osouli, A., Hashash, Y. M., & Song, H. (2009). Interplay between field measurements and soil behavior for capturing supported excavation response. Journal of geotechnical and geoenvironmental engineering, 136(1), 69-84.
• Hashash, Y. M., Levasseur, S., Osouli, A., Finno, R., & Malecot, Y. (2010). Comparison of two inverse analysis techniques for learning deep excavation response. Computers and geotechnics, 37(3), 323-333.
• Yen, W. P., Chen, G., Yashinski, M., Hashash, Y., Holub, C., Wang, K., & Guo, X. (2009). Lessons in bridge damage learned from the Wenchuan earthquake. Earthquake Engineering and Engineering Vibration, 8(2), 275-285.
• Kwon, T. H., Ghaboussi, J., Pecknold, D. A., & Hashash, Y. M. (2010). Role of corneal biomechanical properties in applanation tonometry measurements. Journal of refractive surgery, 26(7), 512-519.
• Ghaboussi, J., Kwon, T. H., Pecknold, D. A., & Hashash, Y. M. (2009). Accurate intraocular pressure prediction from applanation response data using genetic algorithm and neural networks. Journal of biomechanics, 42(14), 2301-2306.
• Schuster, M., Kung, G. T. C., Juang, C. H., & Hashash, Y. M. (2009). Simplified model for evaluating damage potential of buildings adjacent to a braced excavation. Journal of geotechnical and geoenvironmental engineering, 135(12), 1823-1835.
• Phillips, C., & Hashash, Y. M. (2009). Damping formulation for nonlinear 1D site response analyses. Soil Dynamics and Earthquake Engineering, 29(7), 1143-1158.
• Hashash, Y. M., Fu, Q., Ghaboussi, J., Lade, P. V., & Saucier, C. (2009). Inverse analysis–based interpretation of sand behavior from triaxial compression tests subjected to full end restraint. Canadian Geotechnical Journal, 46(7), 768-791.
• Tsai, C. C., & Hashash, Y. M. (2009). Learning of dynamic soil behavior from downhole arrays. Journal of Geotechnical and Geoenvironmental Engineering, 135(6), 745-757.
• Sedarat, H., Kozak, A., Hashash, Y. M., Shamsabadi, A., & Krimotat, A. (2009). Contact interface in seismic analysis of circular tunnels. Tunnelling and Underground Space Technology, 24(4), 482-490.
• Hashash, Y. M. A., Song, H., Jung, S., & Ghaboussi, J. (2009). Extracting inelastic metal behaviour through inverse analysis: A shift in focus from material models to material behaviour. Inverse Problems in Science and Engineering, 17(1), 35-50.
• Hashash, Y. M. A., & Song, H. (2008). The integration of numerical modeling and physical measurements through inverse analysis in geotechnical engineering. KSCE Journal of Civil Engineering, 12(3), 165.
• Kwon, T. H., Ghaboussi, J., Pecknold, D. A., & Hashash, Y. M. A. (2008). Effect of cornea material stiffness on measured intraocular pressure. Journal of biomechanics, 41(8), 1707-1713.
• Hashash, Y. M., Osouli, A., & Marulanda, C. (2008). Central artery/tunnel project excavation induced ground deformations. Journal of geotechnical and geoenvironmental engineering, 134(9), 1399-1406.
• Hashash, Y. M., Tsai, C. C., Phillips, C., & Park, D. (2008). Soil-column depth-dependent seismic site coefficients and hazard maps for the upper Mississippi Embayment. Bulletin of the Seismological Society of America, 98(4), 2004-2021.
• Kwok, A. O., Stewart, J. P., & Hashash, Y. M. (2008). Nonlinear ground-response analysis of Turkey Flat shallow stiff-soil site to strong ground motion. Bulletin of the Seismological Society of America, 98(1), 331-343.
• Quiñones-Rozo, C. A., Hashash, Y. M. A., & Liu, L. Y. (2008). Digital image reasoning for tracking excavation activities. Automation in Construction, 17(5), 608-622.
• Park, D., & Hashash, Y. M. (2008). Rate-dependent soil behavior in seismic site response analysis. Canadian Geotechnical Journal, 45(4), 454-469.
• Hashash, Y. M., & Finno, R. J. (2008). Development of new integrated tools for predicting, monitoring, and controlling ground movements due to excavations. Practice periodical on structural design and construction, 13(1), 4-10.
• Tsai, C. C., & Hashash, Y. M. (2008). A novel framework integrating downhole array data and site response analysis to extract dynamic soil behavior. Soil Dynamics and Earthquake Engineering, 28(3), 181-197.
• Kwok, A. O., Stewart, J. P., Hashash, Y. M., Matasovic, N., Pyke, R., Wang, Z., & Yang, Z. (2007). Use of exact solutions of wave propagation problems to guide implementation of nonlinear seismic ground response analysis procedures. Journal of Geotechnical and Geoenvironmental Engineering, 133(11), 1385-1398.
• Hashash, Y. M. (2007). Special issue on biologically inspired and other novel computing techniques in geomechanics. Computers and Geotechnics, 5(34), 329.
• Fu, Q., Hashash, Y. M., Jung, S., & Ghaboussi, J. (2007). Integration of laboratory testing and constitutive modeling of soils. Computers and Geotechnics, 34(5), 330-345.
• Kung, G. T., Juang, C. H., Hsiao, E. C., & Hashash, Y. M. (2007). Simplified model for wall deflection and ground-surface settlement caused by braced excavation in clays. Journal of Geotechnical and Geoenvironmental Engineering, 133(6), 731-747.
• Nezami, E. G., Hashash, Y., Zhao, D., & Ghaboussi, J. (2007). Simulation of front end loader bucket–soil interaction using discrete element method. International journal for numerical and analytical methods in geomechanics, 31(9), 1147-1162.
• Butkovich, J. N., & Hashash, Y. M. (2007). Neural network material model enhancement: Optimization through selective data removal. AI EDAM, 21(1), 61-72.
• Su, Y. Y., Hashash, Y. M. A., & Liu, L. Y. (2006). Integration of construction as-built data via laser scanning with geotechnical monitoring of urban excavation. Journal of construction engineering and management, 132(12), 1234-1241.
• Zhao, D., Nezami, E. G., Hashash, Y. M., & Ghaboussi, J. (2006). Three-dimensional discrete element simulation for granular materials. Engineering Computations, 23(7), 749-770.
• Park, D. H., Hashash, Y. M. A., Lee, H. W., & Kim, J. Y. (2006). Effect of Loading Frequency Dependent Soil Behavior on Seismic Site Effect. Journal of the Korean Geotechnical Society, 22(3), 23-35.
• Hashash, Y. M., Marulanda, C., Ghaboussi, J., & Jung, S. (2006). Novel approach to integration of numerical modeling and field observations for deep excavations. Journal of Geotechnical and Geoenvironmental Engineering, 132(8), 1019-1031.
• Ghaboussi, J., Yun, G. J., & Hashash, Y. M. A. (2006). A novel predictor–corrector algorithm for sub‐structure pseudo‐dynamic testing. Earthquake engineering & structural dynamics, 35(4), 453-476.
• G Nezami, E., MA Hashash, Y., Zhao, D., & Ghaboussi, J. (2006). Shortest link method for contact detection in discrete element method. International Journal for Numerical and Analytical Methods in Geomechanics, 30(8), 783-801.
• Wotring, D. C., & Hashash, Y. (2006). Visualization of material stiffness in geomechanics analysis. International journal for numerical and analytical methods in geomechanics, 30(1), 21-44.
• Hashash, Y. M., Park, D., John, I., & Yao, C. (2005). Ovaling deformations of circular tunnels under seismic loading, an update on seismic design and analysis of underground structures. Tunnelling and Underground Space Technology, 20(5), 435-441.
• Park, D., & Hashash, Y. M. (2005). Evaluation of seismic site factors in the Mississippi Embayment. II. Probabilistic seismic hazard analysis with nonlinear site effects. Soil Dynamics and Earthquake Engineering, 25(2), 145-156.
• Park, D., & Hashash, Y. M. (2005). Evaluation of seismic site factors in the Mississippi Embayment. I. Estimation of dynamic properties. Soil Dynamics and Earthquake Engineering, 25(2), 133-144.
• Hashash, Y., Fu, Q., & Butkovich, J. (2004). Generalized strain probing of constitutive models. International journal for numerical and analytical methods in geomechanics, 28(15), 1503-1519.
• Nezami, E. G., Hashash, Y. M., Zhao, D., & Ghaboussi, J. (2004). A fast contact detection algorithm for 3-D discrete element method. Computers and geotechnics, 31(7), 575-587.
• Hashash, Y. M. A., Jung, S., & Ghaboussi, J. (2004). Numerical implementation of a neural network based material model in finite element analysis. International Journal for numerical methods in engineering, 59(7), 989-1005.
• Park, D., & Hashash, Y. M. (2004). Soil damping formulation in nonlinear time domain site response analysis. Journal of Earthquake Engineering, 8(02), 249-274.
• Hashash, Y. M., Marulanda, C., Kershaw, K. A., Cording, E. J., Druss, D. L., Bobrow, D. J., & Das, P. K. (2003). Temperature correction and strut loads in central artery excavations. Journal of geotechnical and geoenvironmental engineering, 129(6), 495-505.
• Hashash, Y. M. A., Marulanda, C., Ghaboussi, J., & Jung, S. (2003). Systematic update of a deep excavation model using field performance data. Computers and Geotechnics, 30(6), 477-488.
• Hashash, Y., Yao, J. I., & Wotring, D. C. (2003). Glyph and hyperstreamline representation of stress and strain tensors and material constitutive response. International journal for numerical and analytical methods in geomechanics, 27(7), 603-626.
• MA Hashash, Y., C Wotring, D., Lee, J. S., & Fu, Q. (2002). Visual framework for development and use of constitutive models. International Journal for Numerical and Analytical Methods in Geomechanics, 26(15), 1493-1513.
• Hashash, Y. M. A., Cording, E. J., & Oh, J. (2002). Analysis of shearing of a rock ridge. International Journal of Rock Mechanics and Mining Sciences, 39(8), 945-957.
• Hashash, Y. M., & Park, D. (2002). Viscous damping formulation and high frequency motion propagation in non-linear site response analysis. Soil Dynamics and Earthquake Engineering, 22(7), 611-624.
• Hashash, Y. M., & Whittle, A. J. (2002). Mechanisms of load transfer and arching for braced excavations in clay. Journal of Geotechnical and Geoenvironmental Engineering, 128(3), 187-197.
• Hashash, Y. M., Hook, J. J., Schmidt, B., John, I., & Yao, C. (2001). Seismic design and analysis of underground structures. Tunnelling and underground space technology, 16(4), 247-293.
• Hashash, Y. M., & Park, D. (2001). Non-linear one-dimensional seismic ground motion propagation in the Mississippi embayment. Engineering Geology, 62(1), 185-206.
• Hashash, Y. M., & Whittle, A. J. (1996). Ground movement prediction for deep excavations in soft clay. Journal of Geotechnical Engineering, 122(6), 474-486.
• Whittle, A. J., Hashash, Y. M., & Whitman, R. V. (1993). Analysis of deep excavation in Boston. Journal of geotechnical engineering, 119(1), 69-90.
• Hashash, Y. M. A., & Whittle, A. J. (1992). Integration of the modified Cam-clay model in non-linear finite element analysis. Computers and geotechnics, 14(2), 59-83.

Articles in Conference Proceedings

• T.A. Shoemaker, D. Gurruchaga Renjel, S. Aziz, P. Bal, Y. M.A. Hashash, S. M. Olson, and P. V. Braun, “DEM Modeling of Triaxial Tests on Ottawa Sand.” NAFEMS Americas Conference. Louisville, KY. (2024)
• Shoemaker, Travis A., Carine Tanissa, and Youssef MA Hashash. "Comparison of DEM Software with Polyhedral Particle Shapes." In Geo-Congress 2024, pp. 111-119. 2024.
• Ramos-Sepulveda, M.E., Parker, G.A., Thompson, E.M., Brandenberg, S.J., Li, M., Ilhan, O., Hashash, Y.M., Rathje, E.M. and Stewart, J.P., 2023. High-pass corner frequency selection for implementation in the USGS automated ground motion processing tool. In Geo-Congress 2023 (pp. 327-335).
• Chrysovergis, T., Lemnitzer, A., Star, L.M., Rodriguez, J., Hashash, Y., Sathialingam, N., Cording, E. and O’Rourke, T.D., 2023. Effects of Tar on CPT and Shear Wave Velocity Correlations for the LA Metro Purple Line (D-Line). In Geo-Congress 2023 (pp. 204-214).
• Beaino, C., Hashash, Y.M., Bernard, T., Hutter, A., Jasiak, M., Lawrence, J., Szewczyk, A., Zhao, W., Pearce, M., Lemnitzer, A. and Star, L., Sathialingam, N., Cording, E. and O’Rourke, T.D., and Danielians, A. 2023. Semi-Empirical Method for Excavation-Induced Surface Displacements—Los Angeles Metro K Line Crenshaw/LAX Transit Project. In Geo-Congress 2023 (pp. 492-500).
• Zhao, W., Hashash, Y.M., Jasiak, M., Lawrence, J., Hutter, A., Bernard, T., Josephina Szewczyk, A., Beaino, C., Pearce, M., Lemnitzer, A. and Star, L., Sathialingam, N., Cording, E. and O’Rourke, T.D., and Danielians, 2023. Evaluation of Empirical Methods for Estimating Tunneling-Induced Ground Movements—Los Angeles Metro K Line Crenshaw/LAX Transit Project. In Geo-Congress 2023 (pp. 501-514).
• Ramos-Sepulveda, M.E., Parker, G.A., Li, M., Ilhan, O., Hashash, Y., Rathje, E.M. and Stewart, J., 2022. Performance of NGA-East GMMs and Site Amplification Models Relative to CENA Ground Motions. 1th National Conference on Earthquake Engineering
• Chrysovergis, Taki, Andres Lozano, Anne Lemnitzer, Lisa Star, Youssef Hashash, Namasivayam Sathialingam, Edward J. Cording, and Thomas D. O’Rourke. "Lessons Learned from a Reduced-Size Exploratory Shaft for the Los Angeles Metro D-Line (Purple Line) in Tar-Impacted Soils." In Geo-Congress 2022, pp. 322-332. 2022.
• Charbel Beaino; Youssef M. A. Hashash; Timothy Bernard; Abby Hutter; Maksymilian Jasiak; Jack Lawrence; Patricia Wendy; Michael Pearce; Anne Lemnitzer; Lisa Star; Namasivayam Sathialingam; Edward J. Cording; Thomas D. O’Rourke; and Androush Danielians 2022 "Performance of Station Excavations for LA Metro K (Crenshaw/LAX) Line" Geo-Congress 2022 : Deep Foundations, Earth Retention, and Underground Construction . 2022
• Elliot Nichols; Joe Smith, P.E.; J. David Frost, Ph.D., P.E.; and Youssef Hashash, Ph.D. "Geo-Congress 2022 : Site and Soil Characterization, Computational Geotechnics, Risk, and Lessons Learned" . 2022
• Ilhan, O., Hashash, Y.M., Stewart, J.P., Rathje, E.M. and Nikolaou, S., 2021. APPLICATION OF DEEP LEARNING TECHNIQUE FOR SITE AMPLIFICATION AT CENTRAL AND EASTERN NORTH AMERICA. 4th International Conference on Earthquake Engineering
• Acar, Muhsin, Ozgun A. Numanoglu, and Youssef MA Hashash. "Numerical Simulation of Dynamic Centrifuge Tests on Concrete Faced Rockfill Dam." In Geo-Congress 2019: Earthquake Engineering and Soil Dynamics, pp. 108-117. Reston, VA: American Society of Civil Engineers, 2019.
• Numanoglu O. A., Hashash Y. M. A., Olson S. M., Cerna-Diaz A., Bhaumik L., Rutherford C. J., Weaver T. (2019). "Numerical simulation of dense sand behavior under multidirectional seismic loading using a new 3-D constitutive model", Proceedings of the VII ICEGE 7th International Conference on Earthquake Geotechnical Engineering, Rome, Italy
• Ilhan O., Harmon J. A., Numanoglu O. A., Hashash Y. M. A. (2019). "Deep learning-based site amplification models for Central and Eastern North America", Proceedings of the VII ICEGE 7th International Conference on Earthquake Geotechnical Engineering, Rome, Italy
• K.C. Ellison, P. Kumar, A. Richmond, S. Chen, L. Maher, Y. M.A. Hashash, M. Walker, and S. Toloui, "A Numerical Study of the Composite Behavior of Permanent and Temporary Shaft Liners Subjected to Strong Ground Shaking". 7th International Conference on Earthquake Geotechnical Engineering. 2019.
• Youssef M. A. Hashash; Joseph Harmon; Okan Ilhan; Jonathan P. Stewart; Ellen M. Rathje; Kenneth W. Campbell; Walter J. Silva; and Christine A. Goulet Geotechnical Earthquake Engineering and Soil Dynamics V : Seismic Hazard Analysis, Earthquake Ground Motions, and Regional-Scale Assessment . 2018
• Sadiq, S., Ilhan, O., Ahdi, S.K., Bozorgnia, Y., Hashash, Y., Kwak, D.Y., Park, D., Yong, A. and Stewart, J., 2022. A proposed seismic velocity profile database model.
• Sean Ahdi, Jonathan Stewart, Dong Youp Kwak, Alan Yong, Yousef Bozorgnia, Shamsher Sadiq, Okan Ilhan, Duhee Park, Youssef Hashash (2018) "Development of a United States Community Shear Wave Velocity Profile Database". 36th General Assembly of the European Seismological Commission (ESC2018). Abstract in ESC2018 Book of Abstracts, ISBN: 978-88-98161-12-6.
• Sean K. Ahdi, S.M.ASCE; Shamsher Sadiq, S.M.ASCE; Okan Ilhan, S.M.ASCE; Yousef Bozorgnia, Ph.D., P.E., F.ASCE; Youssef M. A. Hashash, Ph.D., P.E., F.ASCE; Dong Youp Kwak, Ph.D.; Duhee Park, Ph.D.; Alan Yong; and Jonathan P. Stewart, Ph.D., P.E., F.ASCE, (2018) "Development of a United States Community Shear Wave Velocity Profile Database," Geotechnical Earthquake Engineering and Soil Dynamics V : Seismic Hazard Analysis, Earthquake Ground Motions, and Regional-Scale Assessment . 2018
• Donald G. Anderson, Ph.D., P.E., D.GE, M.ASCE; Phoebe Cheng, P.E., M.ASCE; Michael E. Perez, P.E.; Youssef M. A. Hashash, Ph.D., P.E., F.ASCE; and Steven L. Kramer, Ph.D., M.ASCE (2018) "An Assessment of the Effects of Embankment Displacements on a Buried Water Reservoir" Geotechnical Earthquake Engineering and Soil Dynamics V : Seismic Hazard Analysis, Earthquake Ground Motions, and Regional-Scale Assessment . 2018
• Baltaji, Omar, Ozgun A. Numanoglu, Y. M. A. Hashash, S. Veeraraghavan, Justin L. Coleman, and Chandrakanth Bolisetti. "Non-linear time domain site response and soil structure interaction analyses for nuclear facilities using moose." (2017).
• Numanoglu, O.A., Hashash, Y.M., Cerna-Diaz, A., Olson, S.M., Bhaumik, L., Rutherford, C.J., & Weaver, T. (2017). Nonlinear 3-D modeling of dense sand and simulation of soil-structure system under multi-directional loading. In the proceedings of GeoFrontiers 2017. Orlando, Florida. (p. 379-388).
• Cerna-Diaz, A., Olson, S.M., Numanoglu, O.A., Hashash, Y.M., Bhaumik, L., Rutherford, C.J., & Weaver, T. (2017). Free-field cyclic response of dense sands in dynamic centrifuge tests with 1D and 2D shakings. In the proceedings of GeoFrontiers 2017. Orlando, Florida. (p. 121-130).
• Bhaumik, L., Rutherford, C.J., Cerna-Diaz, A., Olson, S.M., Numanoglu, O.A., Hashash, Y.M., & Weaver, T. (2017). Volumetric strain in non-plastic silty sand subject to multidirectional cyclic loading. In Geotechnical Frontiers (GeoFrontiers) 2017. Orlando, FL. (p. 150-159).
• Qian, Y., Mishra, D., Tutumluer, E., Hashash, Y.M.A., & Ghaboussi, J. (2016, April). Moisture effects on degraded ballast shear strength behavior. In the proceedings of the 2016 Joint Rail Conference. American Society of Mechanical Engineers. (p. V001T01A034-V001T01A034).
• Parker, G., Stewart, J.P., Hashash, Y.M.A., Rathje, E.M., Campbell, K., Silva, W.J., Harman, J.A., & Xu, B. (2016). Empirical seismic site amplification in central and eastern North America from NGA-East ground motion database. Annual Meeting of the Seismological Society of America, Reno, NV. (Abstract and Presentation).
• Parker, G., Stewart, J.P., Harmon, J.A., Hashash, Y.M.A., Atkinson, B.A., Boore, D., Bozorgnia, Y., Darragh, R.B., & Silva, W.J. (2017b). Recommended central and eastern North America seismic site amplification models for USGS map applications. In the proceeding of the Annual Meeting of the Seismological Society of America. Denver, CO. (Abstract and Presentation).
• Kishida, T., Goulet, C.A., Ancheta, T.D., Cramer, C.H., Darragh, R.B., Silva, W.J., Hashash, Y.M.A., Harmon, J.A., Stewart, J.P., Wooddell, K.E., Youngs, R.R., & Mazzoni, S. (2016). NGA-east database. In the proceeding of the Annual Meeting of the Seismological Society of America. Reno, NV. (Abstract and Presentation).
• Kishida, T., Goulet, C.A., Ancheta, T.D., Cramer, C.H., Darragh, R.B., Silva, W.J., Hashash, Y.M.A., Harmon, J.A., Stewart, J.P., Wooddell, K.E., Youngs, R.R. (2015). PEER NGA-east database. In the proceedings of AGU 2015. Montreal, CA. (Abstract and Presentation).
• Kishida, T., Goulet, C.A., Ancheta, T.D., Cramer, C.H., Darragh, R.B., Hashash, Y.M.A., Harmon, J.A., Stewart, J.P., Wooddell, K.E., Youngs, R.R., & Mazzoni, S. (2016). NGA-east database. In the proceedings of the Joint Meeting of the Eastern Section of SSA & NGA-East 2016. Reston, Virginia. (Abstract and presentation).
• Hashash, Y.M.A. (2016). Seismic performance evaluation of nonlinear soil-structure system under multi-directional shaking. In the proceedings of the 2016 Geocongress. Phoneix, Arizona. (Abstract and presentation).
• Harmon, J.A., Hashash, Y.M.A., Stewart, J.P., Rathje, E.M., Campbell, K., Silva, W.J., Parker, G., & Xu, B. (2016). A simulation-based ground response model to guide development of a generalized site amplification model for central and eastern North America. In the proceedings of the Annual Meeting of the Seismological Society of America. Reno, NV. (Abstract and Presentation).
• Mitchell, R., Abrahamson, N., Anderson, D., Hashash, Y.M.A., Kramer, S., (2016). Ground motion development for evaluation and retrofit of major underground water reservoirs in Seattle, Washington (1699). In the proceedings of the 2016 Geocongress. Phoneix, Arizona. (Abstract and presentation).
• Cheng, P., Vahdani, S., Teharani, P., HcHenry, M., Hashash, Y.M.A., Marsh, L., Kramer, S., Berger, A. (2016). Advanced soil-fluid-structure-interaction analysis of large buried reservoir for seismic retrofit design (1697). In the proceedings of the 2016 Geocongress. Phoneix, Arizona. (Abstract and presentation).
• Hashash, Y.M.A., Jammoul, M., Fleming, K., Baltaji, O., McLandrich, S., Yeskoo, A., O'Riordan, N., Riemer, M. (2016). Excavation support system response for the Transbay Transit Center in San Francisco, California. In the proceedings of the 2016 Geocongress. Phoneix, Arizona. (Abstract and presentation).
• Hashash, Y.M.A. and Mason, B. (2016). Post-earthquake reconnaissance findings from the M 7.8 Gorkha Earthquake - Nepal, 2016. In the proceedings of the 2016 Geocongress. Phoenix, Arizona. (Abstract and presentation).
• Pehlivan, M., Hashash, Y.M.A., Harmon, J.A., Rathje, E.M., Stewart, J.P., Silva, S.J., Campbell, W., & Nikolaou, S. (2015 November). Influence of shear wave velocity reversals on one-dimensional site response of spatially varied profiles. In the proceedings of the 6th International Conference on Earthquake Geotechnical Engineering. Christchurch, New Zealand.
• Olson, S.M., Hashash, Y.M.A., Rutherford, C.J., Cerna-Diaz, A., Numanoglu, O.A., Bhaumik, L., & Weaver, T. (2015, November). Experimental and numerical investigation of cyclic response of dense sand under multidirectional shaking. In the proceedings of the 6th International Conference on Earthquake Geotechnical Engineering. Christchurch, New Zealand.
• Groholski, D.R., Hashash, Y.M.A., Musgrove, M., Harmon, J., & Kim, B. (2015, November). Evaluation of 1-D non-linear site response analysis using a general quadratic/hyperbolic strength-controlled constitutive model. In 6ICEGE, the proceedings of the 6th International Conference on Earthquake Geotechnical Engineering. Christchurch, New Zealand.
• Gillis, K., Dashti, S., Hashash, Y., Jones, C., Musgrove, M., & Walker, M. (2015 November). Seismic performance of shallow underground structures adjacent to tall buildings: A Centrifuge Experimental Study. In the proceedings of the 6th International Conference on Earthquake Geotechnical Engineering. Christchurch, New Zealand.
• Stewart, J.P., Afshari, K., & Hashash, Y.M.A. (2015). Protocols for ground response analyses to estimate site effects in probabilistic ground motion evaluations. In the proceedings of the IZIIS-50 International Conference on Earthquake Engineering and Seismology.
• Qian, Y., Tutumluer, E., Hashash, Y.M.A., and Ghaboussi, J. (2015, November). Effects of ballast degradation on shear strength behavior from large-scale triaxial tests. In From Fundamentals to Applications in Geotechnics: Proceedings of the 15th Pan-American Conference on Soil Mechanics and Geotechnical Engineering. Buenos Aires, Argentina. IOS Press. (p. 170).
• Harmon, J.A., Hashash, Y.M.A., Nikolaou, S., Pehlivan, M., Stewart, J.P., Rathje, E.M., Campbell, K., & Silva, W.J. (2015). The influence of hard rock depth on nonlinear site response analysis in the eastern United States. In the proceedings of the Annual Meeting of the Seismological Society of America. Pasadena, CA. (Abstract and Presentation).
• Ibrahim, H., El-Rayes, K., & Hashash Y. (2015 October). Optimizing cooperative construction of shared wheat storage facilities. In the proceedings of the First International Congress on Post-harvest Loss Prevention. Rome, Italy.
• Lee, S.J., Hashash, Y.M., & Park, E.H. (2015). Large scale simulation of granular materials via impulse-based discrete element method. In GeoCongress, ASCE. San Antonio, TX. (p. 105-114).
• Hashash, Y.M., Jammoul, M., Fleming, K.L., McLandrich, S., Yeskoo, A., O‘Riordan, N., Gouvin, P., & Riemer, M. (2015). Construction monitoring for the transbay transit center excavation in San Francisco, California. In GeoCongress, ASCE. San Antonio, TX, (p. 2502-2511).
• Nikolaou, S., Volterra, J.L., Hashash, Y.M.A., Asimaki, D., Zekkos, D. (2015). Rapid geotechnical reconnaissance technologies for multi hazards, in the proceedings of the Infrastructure Group Seminar, NYC Met Section, ASCE.
• Qian, Y., Tutumluer, E., Hashash, Y.M., & Ghaboussi, J. (2014, April). Effects of ballast degradation on permanent deformation behavior from large-scale triaxial tests. In 2014 Joint Rail Conference. Colorado Springs, CO. American Society of Mechanical Engineers. (p. V001T01A022-V001T01A022).
• Magsino, S.L., Gilbert, P.H., Ariaratnam, S.T., Connery, N.R., English, G., Felice, C.W., Hashash, Y.M.A., Hendrickson, C.T., Nelson, P.P., Sterling. R.L., Tamaro, G.J., Tonon, F. & Spence, S. (2014). Underground engineering for sustainable urban development. In Geo-Congress 2014: Geo-characterization and Modeling for Sustainability. Atlanta, Georgia, GSP 234. (p. 3861-3870).
• Hashash, Y.M., Nikolaou, S., Sukumaran, B., Sacks, A., Burlingame, M., Baxter, C., Bradshaw, A., Wooten, L., Lacy, H., Moss, C., O’Rourke, T.D., & Daraio, J. (2014). Selected effects of the 2012 Hurricane Sandy along the US East Coast: A geotechnical perspective. In Geo-Congress 2014 Keynote Lectures: Geo-Characterization and Modeling for Sustainability. Atlanta, Georgia, GSP 235. (p. 28-52).
• Gillis, K.M., Dashti, S., Hashash, Y.M.A., & Arduz, M.I.R. (2014 January). Seismic response of a cut-and-cover underground structure in dry sand: centrifuge modeling. In Proceedings of the 8th International Conference on Physical Modeling in Geotechnics (ICPMG2014). Perth, Australia (p. 14-17).
• Hashash, Y.M., Jammoul, M., Su, S.H., & Bhat, S.D. (2014). Integrating geotechnical baseline reports and risk allocation frameworks in geotechnical engineering education. In Geo-Congress 2014: Geo-characterization and Modeling for Sustainability. Atlanta, Georgia, GSP 234. (pp. 2290-2296).
• Gillis, K.M., Dashti, S., Hashash, Y.M.A., Arduz, M.I.R., & Walker, M.C. (2014). Dynamic centrifuge testing of a temporary braced excavation in dry sand. In Geo-Congress 2014: Geo-characterization and Modeling for Sustainability. Atlanta, Georgia, GSP 234. (p. 475-484).
• Asmar, R., & Hashash, Y.M. (2014). Modified triaxial apparatus for nonuniform loading beyond frictional ends. In Geo-Congress 2014: Geo-characterization and Modeling for Sustainability. Atlanta, Georgia, GSP 234. (p. 703-712).
• Hashash, Y.M.A., Asmar, R., & Moon, S. (2013). Combined computational-experimental laboratory testing for soil behavior modeling. In the proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering. Paris, France. (p. 723-726).
• Hashash, Y.M., Kottke, A.R., Stewart, J.P., Campbell, K.W., Kim, B., Moss, C., Nikolaou, S., Rathje, E.M., & Silva, W. J. (2014). Reference rock site condition for central and eastern North America. In the proceedings of the 22nd Conference on Structural Mechanics in Reactor Technology. San Francisco, California, USA. Reproduced in the Bulletin of the Seismological Society of America, 104(2). (p. 684-701).
• Kim, B., Campbell, K., Hashash, Y.M.A., Kottke, A., Li, W., & Assimaki, D. (2013). A predictive model for the relative differences between nonlinear and equivalent-linear site response analyses. In the proceedings of the 22nd Conference on Structural Mechanics in Reactor Technology. San Francisco, California, USA.
• McLandrich, S.M., Hashash, Y.M.A., & O’Riordan, N.J. (2013 April). Networked geotechnical near real-time monitoring for large urban excavation using multiple wireless sensors. In the proceedings of the Conference to Commemorate the Legacy of Ralph B. Peck, Seventh International Conference on Case Histories in Geotechnical Engineering and Symposium in Honor of Clyde Baker. Wheeling, IL.
• Olson, S.M., Muszynski, M.R., Hashash, Y.M., & Phillips, C. (2013). Downslope ground movements during liquefaction-induced lateral spreading in centrifuge testing. In Geo-Congress 2013: Stability and Performance of Slopes and Embankments III. (p. 927-936).
• Hashash, Y.M.A. (2012). Urban underground structures – earthquakes, resilience and sustainability. In the proceedings of the 2012 Japan-American Frontiers of Engineering Symposium. Irvine, CA. - Abstract.
• Dashti, S., Gillis, K., Ghayoomi, M., & Hashash, Y.M.A. (2012). Sensing of lateral seismic earth pressures in geotechnical centrifuge modeling. In Proceedings of the 15th World Conference on Earthquake Engineering. Lisbon, Portugal. (p. 1-10).
• Kottke, A.R., Hashash, Y.M.A., Stewart, J.P., Moss, C.J., Nikolaou, S., Rathje, E.M., Silva, W.J., & Campbell, K. W. (2012). Development of geologic site classes for seismic site amplification for central and eastern North America. In the proceedings of the 15th World Conference on Earthquake Engineering, Lisbon, Portugal.
• Lee, S.J. & Hashash, Y.M.A. (2012). An impulse-based discrete element simulation for efficient granular dynamics. In the proceedings of the Engineering Mechanics Institute and 11th ASCE Joint Specialty Conference on Probabilistic Mechanics and Structural Reliability (EMI/PMC 2012). Notre Dame, Indiana.
• Musgrove, M.I. & Hashash, Y.M.A. (2012). 1-D equivalent linear and nonlinear site response, DEEPSOIL V 5.0 software demostration. GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering. Oakland, CA.
• Matasovic, N., & Hashash, Y.M.A. (2012 March). Site response analysis in transportation engineering practice – a TRB Survey. In GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering. Oakland, CA. (p. 1789-1798).
• Kim, B., & Hashash, Y.M.A. (2012 March). Site response analysis using downhole array recordings during the March 2011 Tohoku, Japan, Earthquake. In the proceedings of the 9th International Conference on Urban Earthquake Engineering/ 4th Asia Conference on Earthquake Engineering. Tokyo Institute of Technology, Tokyo, Japan.
• Tutumluer, E., Qian, Y., Hashash, Y.M.A., Ghaboussi, J., & Davis, D.D. (2011). Field validated discrete element model for railroad ballast. In the Proceedings of the Annual Conference of the American Railway Engineering and Maintenance-of-Way Association. Minneapolis, MN. (p. 18-21).
• Moon, S.W. & Hashash, Y.M.A. (2011, September). Inverse analysis based interpretation of undrained direct simple shear behavior. In proceedings of the International Symposium on Deformation Characteristics of Geomaterials. Seoul, Korea.
• Hashash, Y.M.A., Groholski, D. R., & Kim, B. (2011). Enhancing site response modeling through downhole array recordings. In the proceedings of the 4th IASPEI / IAEE International Symposium: Effects of Surface Geology on Seismic Motion. Santa Barbara, CA.
• Kim, B., Hashash, Y.M., Olson, S.M., & Ahmad, I. (2010). Probabilistic seismic hazard analysis for Islamabad and Peshawar in Pakistan using discrete faults. In the proceedings of the 5th International Conference on Earthquake Geotechnical Engineering. Santiago: Chile.
• Hashash, Y.M.A., Asmar, R., & Fu, Q. (2011). Towards an integrated computational-experimental laboratory testing framework for soil behavior characterization and modeling." In the proceedings of the 2011 NSF Engineering Research and Innovation Conference. Atlanta, GA.
• Sharma, L.M., Sapkota, B.K., & Hashash, Y.M.A. (2010). Numerical analysis of proposed wharf structure for port of Anchorage redevelopment. In Ports and Terminal Technology. Long Beach, CA.
• Hashash, Y.M.A., Karina, K., Koutsoftas, D., & O'Riordan, N. (2010). Seismic design considerations for underground box structures. In proceedings of the Earth Retention Conference 3. Bellevue, Wasington, ASCE. (p. 620-637).
• Hashash, Y.M.A., Phillips, C., & Groholski, D.R. (2010). Recent advances in non-linear site response analysis. In the proceedings of the Fifth International Conference in Recent Advances in Geotechnical Eartqhuake Engineering and Soil Dynamics. San Diego, CA. (p. OSP 4).
• Lee, S. J., Hashash, Y.M.A., Wilkinson, R.A., & Agui, J.H. (2011). Simulation of JSC-1a lunar soil simulants with new algorithms developed for realistic soil particle geometries. In: Borja R.I. (eds) Multiscale and Multiphysics Processes in Geomechanics. Springer Series in Geomechanics and Geoengineering. Springer, Berlin, Heidelberg. (p. 193-196).
• Huang, H., Tutumluer, E., Hashash, Y.M.A and J. Ghaboussi, J. (2010). Laboratory validation of coal dust fouled ballast discrete element model. In Paving Materials and Pavement Analysis, proceedings of the GeoShanghai 2010 International Conference, Shanghai, China. (p. 305-313).
• Olson, S.M., Muszynski, M.R., Polito, C., Hashash, Y.M.A., & Phillips, C. (2010). Using tactile pressure sensors to measure lateral spreading-induced earth pressures against large, rigid foundation. In S. Prakash, Ed., Fifth International Conference in Recent Advances in Geotechnical Eartqhuake Engineering and Soil Dynamics. San Diego, CA, USA.
• Zheng, W., Hashash, Y., Petersen, M.M., & Whittaker, A.S. (2010). Site specific response analysis in the New Madrid seismic zone. In S. Prakash, Ed., proceedings of the Fifth International Conference in Recent Advances in Geotechnical Eartqhuake Engineering and Soil Dynamics. San Diego, CA, USA.
• Wong, I., Dawson, T., Dober, M., & Hashash, Y. (2010, July). Evaluating the seismic hazard in Anchorage, Alaska. In Proceedings of the 9th US National and 10th Canadian Conference on Earthquake Engineering. Toronto. (p. 25-29).
• Lee, S. J., Hashash, Y.M.A., Wilkinson, R.A., & Agui, J.H. (2010). Simulation of experimental tests on the JSC-1A lunar soil simulant with polyhedral discrete elements. In Earth and Space 2010 Conference: Engineering, Science, Construction, and Operations in Challenging Environments. Honolulu, Hawaii. (p. 208-216).
• Moreno-Torres, O., Hashash, Y.M.A., and Olson, S.M. (2010). A simplified coupled pore water pressure generation and soil constitutive model. In GeoFlorida: Advances in analysis, modeling & design. West Palm Beach, Florida, USA.
• Huang, H., Tutumluer, E., Hashash, Y.M.A., & Ghaboussi, J. (2010). Discrete element modeling of coal dust fouled railroad ballast behavior. In Proceedings of the 89th Annual Meeting of the Transportation Research Board (TRB), January. (p. 10-14).
• Osouli, A., and Hashash, Y.M.A. (2009). Predicting excavation performance via inverse analysis. In the Proceedings of the 17th International Conference on Soil Mechanics and Geotechnical Engineering: The Academia and Practice of Geotechnical Engineering. Alexandria, Egypt. (p. 1749-1752). - Selected for presentation in session TS 2C Underground Structures: Discussion Session.
• Tutumluer, E., Huang, H., Hashash, Y.M.A., & Ghaboussi, J. (2009, September). AREMA gradations affecting ballast performance using discrete element modeling (DEM) approach. In Proceedings of the AREMA 2009 Annual Conference, Chicago, Illinois. (p. 20-23).
• Finno, R.J., and Hashash, Y.M.A. (2009). Integrated tools for predicting, monitoring and controlling ground movements due to excavations. In the proceedings of the 2009 NSF Engineering Research and Innovation Conference. Honolulu, Hawaii.
• Phillips, C., Olson, S., Hashash, Y.M.A., Muszinsky, M., and Polito, C. (2009). Preliminary results of numerical and physical experiments of lateral spreading impact on large foundation elements, NSF Project No. CMMI 07-2369. In the 7th Annual NEES Conference. Poster. Honolulu, Hawaii.
• Chen, G., Yen, P. W., Yashinsky, M., Hashash, Y.M.A., Holub, C., Wang, K., & Guo, X. (2009). How bridges respond to the May 12, 2008, M7.9 Wenchuan Earthquake in China. In the proceedings of the Asian-Pacific Network of Centers for Earthquake Engineering Research (ANCER) Workshop. Urbana, IL, USA.
• Olson, S.M., Hashash, Y.M.A., & Moreno-Torres, O. (2009). Geotechnical Earthquake Instrumentation at the Bill Emerson Memorial Bridge, Cape Girardeau, Missouri. In the proceedings of the Madrid seismic zone conference. Rolla, MO.
• Groholski, D.R. & Hashash, Y.M.A. (2009). Measurement based self learning simulations of soil behavior with an application to dynamic soil response. 10 pages, CD proceedings. CompGeo I.
• Osouli, A., & Hashash, Y. M. A. (2009). "The relationship between field measurements and soil behavior in TNEC deep excavation," International Foundation Congress & Equipment Expo Orlando, FL. Osouli, A., & Hashash, Y.M. (2009). The relationship between field measurements and soil behavior in TNEC deep excavation. In Contemporary Topics in Ground Modification, Problem Soils, and Geo-Support, proceedings of the International Foundation Congress & Equipment Expo. Orlando, FL. (p. 169-176).
• Jeong, C.G., Park, D. & Hashash, Y.M.A. (2008). Simulation of rate dependent soil behavior in one-dimensional seismic wave propagation. In the proceedings of the 15th International Congress on Sound and Vibration. (p. 1275-1282).
• Hashash, Y.M.A., Fu, Q., & Ghaboussi, J. (2008). Computational-experimental framework for interpretation of diverse soil behavior from triaxial tests. In the proceedings of the Fourth International Symposium on Deformation Characteristics of Geomaterials. Atlanta, GA.
• Ghaboussi, J., Yun, G., & Hashash, Y.M.A. (2008). Stability analysis of predictor-corrector algorithm for sub-structure hybrid simulation and testing. In the proceedings of the 2008 Structures Congress: Research Advances (NEES Project). Vancouver.
• Huang, H., Tutumluer, E., Hashash, Y.M.A., & Ghaboussi, J. (2008). Contact stiffness affecting discrete element modelling of unbound aggregate granular assemblies. In Advances in transportation geotechnics, proceedings from the 1st ISSMGE International Conference on Transportation Geotechnics. Nottingham, U.K. (p. 167-172).
• Osouli, A., & Hashash, Y.M.A. (2008). Learning of soil behavior from measured response of a full scale test wall in sandy soil. In the proceedings of the Sixth International Conference on Case histories in Geotechnical Engineering and symposium in honor of Professor James K. Mitchell. Arlington, VA (USA).
• Phillips, C., & Hashash, Y.M. (2008). A simplified constitutive model to simultaneously match modulus reduction and damping soil curves for nonlinear site response analysis. In Geotechnical Earthquake Engineering and Soil Dynamics IV (GEESD IV). Sacramento, California. (p. 1-10).
• Quiñones-Rozo, C., Hashash, Y.M., & Liu, L. (2008). Semi-automated tracking of excavation activities using imaging techniques. In GeoCongress 2008: Characterization, Monitoring, and Modeling of GeoSystems. New Orleans, Louisiana. (p. 221-228).
• Song, H., Osouli, A., & Hashash, Y.M. (2007). Soil behavior and excavation instrumentation layout. In 7th FMGM 2007: Field Measurements in Geomechanics. Boston, MA. (p. 1-12).
• Tsai, C.C., & Hashash, Y.M.A. (2007, June). An inverse analysis approach to extract dynamic nonlinear soil behavior from downhole array data. In 4th International Conference on Earthquake Geotechnical Engineering. Thessaloniki, Greece.
• Marulanda, C. & Hashash, Y. M. A. (2007). Relationship of inferred soil behavior to excavation instrumentation. In the proceedings of the XIII Panamerican Conference on Soil Mechanic and Foundation Engineering, Margarita, Venezuela. (p. 64-970).
• Tutumluer, E., Huang, H., Hashash, Y.M.A., & Ghaboussi, J. (2007). Imaging aided discrete element modeling of railroad ballast. In the proceedings of the International Conference on Advanced Characterization of Pavement and Soil Engineering Materials, Athens, Greece.
• Tutumluer, E., Huang, H., Hashash, Y.M.A., & Ghaboussi, J. (2007, September). Discrete element modeling of railroad ballast settlement. In American Railway Engineering and Maintenance of Way Association (AREMA) Annual Conference.
• Hashash, Y.M.A. (2007). Extraction of material constitutive behavior from boundary measurements of forces and displacements. In the proceedings of the Inverse Problems, Design, and Optimization Symposium. Miami, Florida.
• Fu, Q., Hashash, Y.M.A., & Ghaboussi, J. (2007). Non-uniformity of stresses within a sand specimen in triaxial shear. In the proceedings of the 10th International Symposium on Numerical Models in Geomechanics (NUMOG 10). Rhodes, Greece. (p. 621-626).
• Fu, Q., Hashash, Y.M., & Ghaboussi, J. (2007). Non-uniformity of stress states within a dense sand specimen. In Advances in Measurement and Modeling of Soil Behavior, proceedings of the Geo-Denver Conference. Denver, Co. (p. 1-9).
• Tutumluer, E., Huang, H., Hashash, Y.M., & Ghaboussi, J. (2008, February). Imaging based discrete element modeling of granular assemblies. In AIP Conference Proceedings Vol. 973, No. 1. (p. 544-549).
• Kwok, O.L.A., Stewart, J.P., Hashash, Y.M., Matasovic, N., Pyke, R., Wang, Z., & Yang, Z. (2006). Utilizing nonlinear seismic ground response analysis for Turkey Flat blind predictions. In Third International Symposium on the Effects of Surface Geology on Seismic Motion. Granoble, France.
• Tutumluer, E., Huang, H., Hashash, Y.M.A., & Ghaboussi, J. (2006, September). Aggregate shape effects on ballast tamping and railroad track lateral stability. In American Railway Engineering and Maintenance of Way Association (AREMA) Annual Conference. Louisville, Kentucky. (p. 17-20).
• Hashash, Y.M.A., Liu, L.Y., Ghaboussi, J., Marulanda, C., Su, Y.Y., Song, H., & Osouli, A. (2006). New technologies for tracking urban excavation progress and estimating deformations. In Underground Construction and Ground Movement, proceedings of the GeoShanghai International Conference. (pp. 336-341).
• Finno, R.J., & Hassash, Y.M. (2006). Integrating tools to predict, monitor, and control deformation due to excavations. In GeoCongress 2006: Geotechnical Engineering in the Information Technology Age. Atlanta, GA. (p. 1-6).
• Hashash, Y.M., Liu, L., Su, Y. Y., & Song, H. (2006). Use of new technologies for tracking excavation progress. In GeoCongress 2006: Geotechnical Engineering in the Information Technology Age. Atlanta, GA. (p. 1-5).
• Hashash, Y.M., Ghaboussi, J., & Jung, S. (2006). Characterizing granular material constitutive behavior using SelfSim with boundary load-displacement measurements. In Earth & Space 2006: Engineering, Construction, and Operations in Challenging Environment. Houston, TX. (p. 1-8).
• Hashash, Y.M., Ghaboussi, J., Fu, Q., & Marulanda, C. (2006). Constitutive soil behavior representation via artificial neural networks: a shift from soil models to soil behavior data. In GeoCongress 2006: Geotechnical Engineering in the Information Technology Age. Atlanta, GA. (p. 1-6).
• Groholski, D.R., & Hashash, Y.M. (2006). Employing visualization techniques for learning of constitutive relations. In GeoCongress 2006: Geotechnical Engineering in the Information Technology Age. Atlanta, GA. (p. 1-5).
• Zhao, D., Nezami, E., Hashash, Y.M.A., & Ghaboussi, J. (2006). Discrete element modeling of polyhedral representation of granular materials. In Earth & Space 2006: Engineering, Construction, and Operations in Challenging Environment. Houston, TX. (p. 1-9).
• Tsai, C.C., & Hashash, Y.M.A. (2006). A novel framework for extracting dynamic soil behavior from downhole array data. In Eigth National Conference on Earthquake Engineering. San Francisco, CA.
• Nezami, E.G., Hashash, Y.M.A., & Ghaboussi, J. (2006). A model for large scale near-real time simulation of granular material flow. In Earth & Space 2006: Engineering, Construction, and Operations in Challenging Environment. Houston, TX. (p. 1-8).
• Nezami, E.G., Zhao, D., Hashash, Y.M.A., Bauer, G., Raila, D., & Ghaboussi, J. (2006). Large scale numerical simulation via parallelization and reconfigurable computing hardware. In GeoCongress 2006: Geotechnical Engineering in the Information Technology Age. Atlanta, Georgia. (pp. 1-5).
• Kwok, O.L.A., Stewart, J.P., Hashash, Y.M., Matasovic, N., Pyke, R., Wang, Z., & Yang, Z. (2006). Practical implementation of analysis routines for nonlinear seismic ground response analysis. In the Proceedings of the 8th US National Conference on Earthquake Engineering. (p. 18-22).
• Stewart, J.P., Kwok, O.L.A., Hashash, Y.M.A., Matasovic, N., Pyke, R., Wang, Z., & Yang, Z. (2006). Overcoming hurdles that limit the application of nonlinear seismic ground response analysis in engineering practice. In Fifth National Seismic Conference on Bridges and Highways, San Francisco.
• Hashash, Y.M.A., Nezami, E., Dawei, Z., & Ghaboussi, J. (2005). DBLOCK3D: A 3-D discrete element analysis code for simulation of granular media and soil-machine interaction. In the proceedings of the NASA Workshop on Granular Materials in Lunar and Martian Exploration, Kennedy Space Center, Florida.
• Hashash, Y.M.A., and Ghaboussi, J. (2005). SelfSim: A novel approach to extract complex material behavior using boundary load-displacement measurements. In the proceedings of the NASA Workshop on Granular Materials in Lunar and Martian Exploration, Kennedy Space Center, Florida.
• Ghaboussi, J., Pecknold, D.A., Hashash, Y.M.A., and Kwon, T.H. (2005). Constitutive Modeling in Bio-Medicine with SelfSim. In Plasticity 2005, Kauai.
• Oliveira Filho, J.N., Su, Y.Y., Song, H., Liu, L.Y., & Hashash, Y.M.A. (2005). Field tests of 3D laser scanning in urban excavation. In Computing in Civil Engineering. (p. 1-10).
• Nezami, E.G., Zhao, D., Hashash, Y.M.A., and Ghaboussi, J. (2005). Shortest Link Method for Contact Detection in 3D DEM Simulations." In the proceedings of the 8th US National Congress on Computational Mechanics, Austin, TX.
• Hashash, Y.M.A., & Finno, R.J. (2005). Development of new integrated tools for predicting, monitoring, and controlling ground movements due to excavations. Underground Construction in Urban Environments, A Specialty Seminar, New York City.
• Su, Y.Y., Oliveira Filho, J.N., Liu, L.Y., & Hashash, Y.M.A. (2005). Integration of construction field data and geotechnical analyses. In Construction Research Congress 2005: Broadening Perspectives (pp. 1-8).
• Hashash, Y.M.A., Oliveira Filho, J.N., Su, Y.Y., & Liu, L.Y. (2005). 3D laser scanning for tracking supported excavation construction. In Site Characterization and Modeling, Geo-Frontiers 2005. Austin, TX. (p. 1-10).
• Butkovich, J.N., & Hashash, Y.M.A. (2005). Neural Network Material Model Enhancement: Optimization Through Visualization and Selective Data Removal. In Site Characterization and Modeling, Geo-Frontiers 2005. Austin, TX. (p. 1-10).
• Hashash, Y.M.A., Marulanda, C., Fu, Q., and Ghaboussi, J. (2005). A novel approach to extracting complex soil behavior. In Plasticity 2005. Kauai.
• Marulanda, C., Butkovich, J., Hashash, Y.M.A., & Ghaboussi, J. (2004, August). Constitutive model update using observed field behavior. In Numerical Models in Geomechanics: Proceedings of the Ninth International Symposium on Numerical Models in Geomechanics - NUMOG IX, Ottawa, Canada. (p. 217). CRC Press.
• Ghaboussi, J., Hashash, Y.M.A., Alperstein, B., Mandal, J.N., Gandhi, S.R., Kumar, S., Wu, A., & Fishman, K. (2004). Case histories of retaining structures and deep excavations. In the proceedings of the Fifth International Conference on Case Histories in Geotechnical Engineering, New York City, NY.
• Elnashai, A., Spencer, B.F., Kuchma, D., Hashash, Y.M.A., Ghaboussi, J., & Gan, G. (2004). Multi-axial full-scale sub-structured testing and simulation (MUST-SIM) facility at the University of Illinois at Urbana-Champaign. 13 World Conference on Earthquake Engineering, Vancouver, B.C.
• Hashash, Y.M.A., Ghaboussi, J., Yun, G.J., & Elnashai, A. (2004, August). Development of software framework for MUST-SIM; an integrated computational and experimental simulation facility. In 13th World Conference on Earthquake Engineering Vancouver, BC, Canada.
• Park, D., & Hashash, Y.M.A. (2004). Integration of probabilistic seismic hazard analysis with nonlinear site effects and application to the Mississippi embayment. In Asian-Pacific Network of Centers for Earthquake-Engineering Research (ANCER). Honolulu, Hawaii.
• Liu, L., Soibelman, L., Hashash, Y.M.A., & Trupp, T. (2004). Novel technologies for construction field data collection. In Xth International Conference on Computing in Civil and Building Engineering. Weimar, Germany.
• Marulanda, C., Hashash, Y.M.A., Jung, S., & Ghaboussi, J. (2004). Integration of field measurements in model simulation of urban excavations. In Proceedings of the International Conference of Geotechnical Engineering-Geo-Beyrouth. Beirut, Lebanon.
• Trupp, T., Liu, L., & Hashash, Y.M.A. (2004, April). Monitoring excavations using 3D laser scanning and digital close-range photogrammetry. In North American Tunneling 2004: Proceedings of the North American Tunneling Conference 2004, Atlanta, Georgia, USA (p. 337). CRC Press.
• Trupp, T., Marulanda, C., Hashash, Y., Liu, L., & Ghaboussi, J. (2004). Novel technologies for tracking construction progress of deep excavations. In Geotechnical Engineering for Transportation Projects. Los Angeles, CA. (p. 2254-2262).
• Park, D., Pezeshk, S., & Hashash, Y.M.A. (2004, February). Nonlinear site response of deep deposits in West Tennessee. In 4th National Seismic Conference and Workshop on Bridges and Highways. (p. 9-12).
• Nezami, E.G., Hashash, Y.M.A., Zhao, D., & Ghaboussi, J. (2003). A fast contact detection algorithm for discrete element method. EM 2003, 16th ASCE Engineering Mechanics Conference, Seattle, WA.
• Hashash, Y.M.A. (2003.) Correlation of Strain Gage Data for Cross Lot Bracing of a Cut-and-Cover Tunnel. In proceedings of the 2003 Structures Congress. Seattle, Washington.
• Hashash, Y.M.A., Marulanda, C., Ghaboussi, J., & Jung, S. (2003.) Update of a numerical model of a deep excavation using field measurements. In Soil Rock America 2003, 12th Panamerican Conf. Soil Mechanics and Geotechnical Engineering.
• Hashash, Y.M.A., Park, D., & Oh, J.-M. (2002.) Seismic site response of deep soil deposits and relationship to response of longitudinal structures. In 4th China-Japan-US Trilateral Symposium on Lifeline Earthquake Engineering. Qingdao, China. (p. 185-192).
• Nezami, E.G., & Hashash, Y.M.A. (2002). The use of static discrete element method to simulate biaxial compression test. In Discrete Element Methods: Numerical Modeling of Discontinua (p. 294-298).
• Hashash, Y.M.A., & Park, D. (2002). Site response analysis in the Mississippi embayment. In US–JAPAN seminar on seismic disaster mitigation in urban area by geotechnical engineering, Anchorage, AK. (p. 19).
• Park, D. & Hashash, Y.M.A. (2002). Site response analysis of deep deposits. In proceedings of the Seventh U.S. National Conference on Earthquake Engineering. Boston, MA: EERI.
• Hashash, Y.M.A. & Ghaboussi, J. (2002). Discrete element modeling for the development of a real-time soil model in a virtual reality environment. In Discrete Element Methods: Numerical Modeling of Discontinua, proceedings of the Third International Conference on Discrete Element Methods, Santa Fe, New Mexico. (p. 112-117).
• Hashash, Y.M.A., Ghaboussi, J., Jung, S., & Marulanda, C. (2002). Systematic update of a numerical model of a deep excavation using field performance data. In Proceedings of the 8th International Symposium on Numerical Models in Geomechanics—NUMOG VIII. (p. 517-522).
• Hashash, Y.M.A., Ghaboussi, J., Jung, S., & Marulanda, C. (2002). Direct field calibration of model simulations of deep excavations. In Plasticity, Damage and Fracture at Macro, Micro and Nano Scales, Plasticity. Aruba: NEAT Press. (p. 21-23).
• Hashash, Y.M.A., Lee, J. S., Wotring, D., & Yao, J. C. (2001). Object oriented based visualization framework of constitutive models in geomechanics. In USACM: Sixth US National Congress on Computational Mechanics Abstracts, Dearborn, Michigan. (p. 250).
• Hashash, Y. M., Hook, J. J., Schmidt, B., John, I., & Yao, C. (2001). Seismic design and analysis of underground structures: an overview. In KEERC-MAE Joint Seminar on Risk Mitigation for Regions of Moderate Seismicity. Urbana, IL. Reproduced in Tunnelling and underground space technology, 16(4). (p. 247-293).
• Hashash, Y.M.A. & Park, D. (2001) Modeling of site amplification of ground motion. In KEERC-MAE Joint Seminar on Risk Mitigation for Regions of Moderate Seismicity. Urbana, IL.
• Hashash, Y., Park, D., & Lee, J. (2001). Non-linear site response analysis for deep deposits in the New Madrid Seismic Zone. Fourth International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics.
• Hashash, Y.M.A. (2001). Seismic behavior of underground structures and site response. Earthquake Engineering Frontiers in the New Millennium. (p. 243).
• Hashash, Y.M.A. (2000). Seismic site response analysis for deep deposits in the New Madrid Seismic Zone. In Proceedings of the International Young Geotechnical Engineers Conference 2000, Southampton, UK.
• Schmidt, B., & Hashash, Y.M. (1999). Preventing tunnel flotation due to liquefaction. In Proceedings of the 2nd International Conference on Earthquake Geotechnical Engineering, Lisboa, Portugal (pp. 509-12).
• Stewart, D.P., Boulanger, R.W., Hashash, Y., & Schmidt, B. (1999). Mitigation of earthquake liquefaction hazards: a review of physical modelling studies. In proceedings 8th Australia New Zealand Conference on Geomechanics: Consolidating Knowledge. Australian Geomechanics Society. (p. 337-343).
• Schmidt, B., & Hashash, Y.M.A. (1998, April). Seismic rehabilitation of two immersed tube tunnels. In World Tunnel Congress. Vol. 98.
• Boulanger, R.W., Idriss, I.M., Stewart, D.P., Hashash, Y., & Schmidt, B. (1998). Drainage capacity of stone columns or gravel drains for mitigating liquefaction. In Geotechnical earthquake engineering and soil dynamics III ASCE. (p. 678-690).
• Hashash, Y., Tseng, W.S., & Krimotat, A. (1998). Seismic soil-structure interaction analysis for immersed tube tunnels retrofit. In Geotechnical Earthquake Engineering and Soil Dynamics III. ASCE. (p. 1380-1391).
• Hashash, Y.M.A., Schmidt, B., & Abramson, L.W. (1997). Impact of tunneling on adjacent subway tunnels. In Proceedings of the 4th international conference on soil mechanics and foundation engineering, International Society for Soil Mechanics and Foundation Engineering. Vol. 3, AA BALKEMA. (p. 1509-1512).
• Whittle, A.J. & Hashash, Y.M.A. (1994). Soil modeling and prediction of deep excavation behavior. In proceedings of the International Symposium on Pre-Failure Deformation Characteristics of Geo-Materials, Sapporo, Vol. 1. (p. 589-595).
• Mrugala, M., & Hashash, Y.M.A. (1994). Performance and modeling of a shaft in Taylor Marl. In proceedings of the 8th international conference, International Association of Computer Methods and Advances in Geomechanics, held in Morgantown, West Virginia. (p. 2615-2620).
• Hashash, Y.M.A., & Cook, R.F. (1994). Effective stress analysis of super collider tunnels. In proceedings of the 8th international conference, International Association of Computer Methods and Advances in Geomechanics, held in Morgantown, West Virginia. (p. 2577-2582).
• Whittle, A.J., & Hashash, Y.M.A. (1993). Analysis of the behaviour of propped diaphragm walls in a deep clay deposit. In proceedings of the conference organized by the Institution of Civil Engineers and held on 20-23 July, 1992 at Robinson College, Cambridge. (p. 131-9).

Other Publications

• Kottke, A., B. Kim, T. Buckreis, F. Dai, J. Xing, K. Jeon, Y. Hashash, J. Stewart. (2023) "Shear wave velocity datafiles for sites in central and eastern North America as compiled by the Geotechnical Working Group as part of the NGA-East project." DesignSafe-CI.
• Hashash, Y. Ilhan, O. Harmon, J. (2019-07-01) "Fourier Amplitude Spectrum Site Amplification Modelling in Western United States", in Hashash et al. (2018) Western United States Site Response Simulation Database. DesignSafe-CI.
• Harmon, Joseph; Hashash, Youssef; Stewart, Jonathan; Rathje, Ellen; Campbell, Kenneth; Silva, Walter; Ilhan, Okan, (2018), "NGA-East Geotechnical Working Group Seismic Site Response Simulation Database" , DesignSafe-CI [publisher], Dataset, doi:10.17603/DS2P67X
• Towards an Integrated Computational-Experimental Laboratory Testing Framework for Soil Behavior Characterization and Modeling, No: 0856322. NSF CMMI Engineering Research and Partnership Conference, 2012, Boston, MA, Poster.
• NEESR: SEISMIC RESPONSE OF SHALLOW UNDERGROUND STRUCTURES IN DENSE URBAN ENVIRONMENTS. Quake Summit 2012, Boston, MA, Poster.
• Lateral Spreading-Induced Pressures against a Large, Rigid Foundation. Quake Summit 2012, Boston, MA, Poster.
• Olson, S., Hashash Y.M.A., Muszynski, M., and Phillips, C. (2011). Preliminary Results of Centrifuge and OpenSees Modeling of Lateral Spreading Pressures Against a Large, Rigid Foundation. Presented by Mark Muszynski at the 24th SAGEEP Conference, April 12, 2011.
• Olson, S., Hashash Y.M.A., Muszynski, M., and Phillips, C. (2011). Measuring Pressures in the Geotechnical Centrifuge Using Tactile Pressure Pads. Presented by Prof. Olson at the 7th Annual NEES Centrifuge Research and Training Workshop at Rensselaer Polytechnic Institute, May 17, 2011.
• Olson, S., Hashash Y.M.A., Muszynski, M., and Phillips, C. (2010). Centrifuge Testing and Parallel Numerical Simulations of Lateral Pressures Measured Against a Rigid Caisson. Presented by S. Olson at Quake Summit 2010, October 9, 2010.
• Olson, S., Hashash, Y.M.A., M, Muszynski, Phillips, C. (2009). University of Illinois Centrifuge Testing at Rensselaer Polytechnic Institute; Investigating Lateral Earth Pressures Against a Rigid Caisson as a Result of Lateral Spreading. Presented by Prof. Olson at UC Davis, September 10, 2009.
• Olson, S., Hashash, Y.M.A., M, Muszynski, Phillips, C. (2009). NEES annual meeting presentation on “NEESR-SG: Soil Improvement Strategies to Mitigate Impact of Seismic Ground Failures via Novel Integration of Experiment and Simulation” 18-21 June, Portland, Oregon.
• Hashash, Y.M.A. and J. Ghaboussi. (2005). SelfSim: A NOVEL APPROACH TO EXTRACT COMPLEX MATERIAL BEHAVIOR USING BOUNDARY LOAD-DISPLACEMENT MEASUREMENTS. in NASA Workshop on Granular Materials in Lunar and Martian Exploration. Kennedy Space Center, Florida.
• Hashash, Y.M.A., E. Nezami, Z. Dawei, and J. Ghaboussi. (2005). DBLOCK3D: A 3-D discrete element analysis code for simulation of granular media and soil-machine interaction. in NASA Workshop on Granular Materials in Lunar and Martian Exploration. Kennedy Space Center, Florida.
• Ghaboussi, J. and Y.M.A. Hashash. (2004).Recent advances in soft computing methods in geomechanics. in International Symposium on Numerical Models in Geomechanics. Ottawa, Canada.
• Ghaboussi, J. and Y.M. Hashash. (2003). Development of constitutive models from structural response: Autoprogressive Algorithm. Seventh International Conference on Plasticity, Quebec City, Canada.
• Wotring, D. and Y.M.A. Hashash. (2003). Visual representation of material stiffness and stress-strain behavior in geomechanics modeling. Seventh US National Congress on Computational Mechanics, Albuquerque, NM.
• Marulanda, C., Y.M.A. Hashash and J. Ghaboussi. (2003). Constitutive model update using observed field behavior. Seventh US National Congress on Computational Mechanics, Albuquerque, NM.
• Ghaboussi, J. and Y.M.A. Hashash. (2002). Biologically inspired soft computing methods in constitutive modeling, KEYNOTE LECTURE. in Plasticity, Damage and Fracture at Macro, Micro and Nanon Scales, Plasticity 2002. Aruba: NEAT Press.
• Hashash, Y.M.A., J.-S. Lee, D. Wotring, and J.I.-C. Yao. (2001). Object oriented based visualization framework of constitutive models in geomechanics. in Sixth U.S. National Conference on Computational Mechanics. Dearborn, Michigan.

Patents

• Patent 8,095,344 B2, Notice of Allowance 12/250,936, Methods and systems for modeling material behavior. Publication date 10 Jan 2012. Filing date 14 Oct 2008.
• Patent 8,070,679 B2, patent “Accurate Determination of Intraocular Pressure and Characterization of Mechanical Properties of the Cornea,”. Publication date 6 Dec 2011. Filing date 21 Jul 2008
• Patent 7,447,614 B2 (Notice of Allowance, U.S. Patent Application: No. 10/409,882 Methods and systems for modeling material behavior.Publication date 4 Nov 2008. Filing date 9 Apr 2003.
• Patent 7,356,449 (Notice of Allowance U.S. Patent Application: No. 10/123,357): Methods and program product for solid mechanics modeling. Youssef M.A. Hashash. Publication Date: 8 Apr 2008. Filing Date: 16 Apr 2002.
• Patent 7,246,047: Methods for Modeling Material Response to Applied Force., J. Ghaboussi and Youssef M.A. Hashash. Publication Date 17 Jul 2007. Filing Date: 9 Apr 2003.

Magazine Articles

• Geostrata, From the President: Reinventing Ourselves, Sep-Oct 2018 Issue
• Geostrata, From the President: Pieces of the Puzzle, Jul-Aug 2018 Issue
• Geostrata, From the President: Ours Is a Risky Business, May-June 2018 Issue
• Geostrata, From the President: Geotechnical Body of Knowledge, Mar-April 2018 Issue
• Geostrata, From the President: Innovation Is All Around Us, Jan-Feb 2018 Issue
• Geostrata, From the President: The next Five Years, Nov-Dec 2017 Issue
• Two EERI articles, one on ANSS and one on Tohokou earthquake
• Liu, A. H., Ostadan, F., & Hashash, Y. "What's Shaking in Seismic Design of Earth Retaining Structures?" Geo-Strata — Geo Institute of ASCE, 14(3), 30.
• (2010) "The World's 18 Strangest Tunnels: Gallery," by Chris Sweeney, published online in Popular Mechanics. Prof. Hashash is heavily quoted in this article based on an interview with Chris Sweeney.
• Hashash, Y.M.A., Quiñones-Rozo, C.A., Groholski, D.R. (2009). "Tracking of Excavation Activities by Laser Scanning and Image Reasoning-based Techniques." Geotechnical Instrumentation News, March.
• (2007) "Understanding Ballast Behavior," Railway Track and Structures magazine, August Issue http://www.nxtbook.com/nxtbooks/sb/rts0807/
• Hashash, Y. M. and C. Marulanda (2003). "Temperature correction and strut loads interpretation in Central artery Excavations." Geotechnical News. 21: 30-31.
• Schmidt, B., Hashash, Y.M.A. and Stimac, T. "US immersed tube retrofit" by, Pages 22-24, in Tunnels & Tunneling International, November 1998 (Vol 30, No. 11).
• Hashash, Y.M.A., Schmidt, B., and Stimac, T., "Unique Ground Improvement Designs for Seismic Retrofit of Posey and Webster Street Tubes," Parsons Brinckerhoff, PB Network, Fall 1997, Issue No. 40, pp. 24-26.
• Hashash, Y.M.A., Rawnsely, R.P., and Whittle, A.J., "Finite Element Analysis of Excavation Performance," Parsons Brinckerhoff, PB Network, Fall 1996, Issue No. 36, p. 31.
• Hashash, Y.M.A., Schmidt, B., and Abramson, L.W., "BART Tunnel Monitoring During MUNI Tunnel Construction," Geotechnical News, June 1995. Translated into Chinese, San Lien Technics, Vol. 38, 1996.

Reports

• Hashash, Y., Baltaji, O., Xing, G., & Liang, Y. (2021). Development of Guidelines for Implementation of Horizontal Directional Drilling. Illinois Center for Transportation/Illinois Department of Transportation. 636p
• Sadek, S. Dabaghi, M. Zimmaro, P. Hashash, Y. O'Donnell, T. Stewart, J. (2021) "In person damage assessment and 360° photo collection and analysis", in GEER - August 4, 2020 Beirut Port Explosion. DesignSafe-CI - Data set.
• Sadek, S. , Dabaghi, M, Zimmaro, P., Hashash, Y., O'Donnell, T. , Stewart, J. (2021), "Engineering Impacts of the August 4, 2020 Port of Beirut, Lebanon Explosion, " Geotechnical Extreme Events Reconnaissance Association Report GEER-070
• Kammerer, Annie M., Coleman, Justin L., Hashash, Youssef M. A., Johnson, James J., Kennedy, Robert P., Whittaker, Andrew S., and Yu, Ching-Ching. Nonlinear Soil-Structure-Interaction Analysis in Support of Seismic Design and Probabilistic Risk Assessment of Nuclear Facilities. Prepared for the National Nuclear Security Administration (NNSA) and TerraPower, LLC. Idaho National Laboratory, 2018.
• Youssef M.A. Hashash, Joseph A. Harmon, Okan Ilhan, Grace A. Parker, and Jonathan P. Stewart PEER 2017/05 - Recommendations for Ergodic Nonlinear Site Amplification in Central and Eastern North America.
• Jonathan P. Stewart, Grace A Parker, Joseph P. Harmon, Gail M. Atkinson, David M. Boore, Robert B. Darragh, Walter J. Silva, and Youssef M.A. Hashash PEER 2017/04 - Expert Panel Recommendations for Ergodic Site Amplification in Central and Eastern North America
• Tutumluer, E., Hashash, Y. M.A., Ghaboussi, J. Qian, Y., Lee, S.J. and Huang, H., (2013). “Discrete Element Modeling of Railroad Ballast Behavior.” Federal Railroad Administration Technical Report, FR-RRF-0033-11-01-00, October, 2013 (in press)
• Christine A. Goulet, Tadahiro Kishida, Timothy D. Ancheta, Chris H. Cramer, Robert B. Darragh, Walter J. Silva, Youssef M.A. Hashash, Joseph Harmon, Jonathan P. Stewart, Katie E. Wooddell, and Robert R. Youngs, "PEER NGA-East Database" PEER 2014/17
• Jonathan P. Stewart, Kioumars Afshari, and Youssef M.A. Hashash, "Guidelines for Performing Hazard-Consistent One-Dimensional Ground Response Analysis for Ground Motion Prediction" PEER 2014/16
• Kenneth W. Campbell, Youssef M.A. Hashash, Byungmin Kim, Albert R. Kottke, Ellen M. Rathje, Walter J. Silva, and Jonathan P. Stewart, 2014, Reference-Rock Site Conditions for Central and Eastern North America: Part II – Attenuation (Kappa) Definition, Pacific Earthquake Engineering Research Center Report No. 2014/12
• Youssef M.A. Hashash, Albert R. Kottke, Jonathan P. Stewart, Kenneth W. Campbell, Byungmin Kim, Ellen M. Rathje, and Walter J. Silva, "Reference-Rock Site Conditions for Central and Eastern North America: Part I - Velocity Definition" Pacific Earthquake Engineering Research Center PEER 2014/11
• Hashash, Y. M. A., S. Nikolaou, B. Sukumaran, A. Sacks, M. Burlingame, C. Baxter, A. Bradshaw, L. Wooten, H. Lacy, C. Moss, J. Daraio and T. D. O’Rourke (2013). Field Reconnaissance of Geotechnical Aspects of October 2012 Hurricane Sandy along the US East Coast. GEER-032.
• Matasovic and Hashash (2012) Practices and Procedures for Site-Specific Evaluations of Earthquake Ground Motions, NCHRP Synthesis Study 428. National Cooperative Highway Research Program, Transportation Research Board, National Academies.
• Contributing author to : The Geo-Engineering Extreme Events Reconnaissance (GEER) preliminary report on the geotechnical effects of the 2010 Chile Earthquake is now available: Preliminary Report on Geotechnical Effects of the 2010 Chile Earthquake, Editors Jonathan Bray and David Frost
• Elnashai, A. S., B. Gencturk, O.-S. Kwon, I. L. Al-Qadi, Y. Hashash, J. R. Roesler, S. J. Kim, S.-H. Jeong, J. Dukes and A. Valdivia (2010). The Maule (Chile) Earthquake of February 27, 2010 Consequence Assessment and Case Studies, Mid-America Earthquake Center.
• Durrani, A. J., Elnashai, A. S., Hashash, Y. M. A., Kim, S.-J., and Masud, A. (2005). "The Kashmir Earthquake of October 8, 2005. A quick look report." MAE Center Report No. 05-04, Mid-America Earthquake Center, University of Illinois at Urbana-Champaign, Urbana.
• Park, D. and Y.M. Hashash, Estimation of non-linear seismic site effects for deep deposits of the Mississippi Embayment. 2004, Mid America Earthquake Center: Urbana. p. 276.
• Boulanger, R.W., Stewart, D.P., Idriss, I.M., Hashash, Y., Schmidt, B., "Ground Improvement Issues for the Posey & Webster St. Tubes Seismic Retrofit Project: Lessons from Physical Modeling" Center for Geotechnical Modeling, Univ. of California at Davis, Report No. UCD/CGM-97/04.
• Boulanger, R.W., Stewart, D.P., Idriss, I.M., Hashash, Y., Schmidt, B., "Ground Improvement Issues for the Posey & Webster St. Tubes Seismic Retrofit Project: Lessons from Case Histories," Center for Geotechnical Modeling, Univ. of California at Davis, Report No. UCD/CGM-97/03.
• Whittle, A.J., and Hashash, Y.M.A., "Analysis of Excavations in Taipei Clay," Research Report R93-12, Dept. of Civil and Environmental Engineering, MIT, Cambridge, Massachusetts, 1993.
• Hashash, Y.M.A., and Whittle, A.J., "Analysis of Braced Diaphragm Walls in Deep Deposits of Clay," Research Report R92-19, Dept. of Civil and Environmental Engineering, MIT, 1992.
• Einstein, H.H., and Hashash, Y.M.A., "Genesis of Fractures and Fracture Zones, Fracture Flow Research," Report to Golder Associates, Seattle, Washington, 1987.

Teaching Honors

• Engineering Council Award for Excellence in Advising (Spring 2022)
• Engineering Council Award for Excellence in Advising (Spring 2021)
• Engineering Council Award for Excellence in Advising (Spring 2019)
• List of Teachers Ranked as Excellent by their students (Spring 2011)
• List of Teachers Ranked as Excellent by their students (Spring 2010)
• 2010 Outstanding Advisors List (May 3, 2010)
• List of Teachers Ranked as Excellent (Fall 2009)
• List of Teachers Ranked as Excellent (Spring 2009)
• 2009 Outstanding Advisors List (April 28, 2009)
• List of Teachers Ranked as Excellent (Spring 2008)
• Informal recognition - “Celebration of Teaching Excellence” by the Provost (May 2, 2007)
• Incomplete List of Teachers Ranked as Excellent (Fall 2006)
• 2006 Collins Award for Innovation in Teaching, College of Engineering, UIUC (2006)
• Incomplete List of Teachers Ranked as Excellent (Fall 2005)
• Incomplete List of Teachers Ranked as Excellent (Spring 2005)
• Incomplete List of Teachers Ranked as Excellent (Fall 2004)
• Incomplete List of Teachers Ranked as Excellent (Spring 2004)

Research Honors

• 2024 Hogentogler Award by ASTM Commitee D18 (2024)
• Korean Geotechnical Society Award Lecturer (2021)
• 17th Annual William Barclay Parsons Lecturer (2019)
• 2014 Peck Medal, Geo-Institute of the American Society of Civil Engineers (2014)
• 2012 Japan-American Frontiers of Engineering Symposium, Irvine, CA (2012)
• CEE Research Innovation Grant (2011-2012)
• 2009 Xerox Award for Faculty Research, UIUC (2009)
• 2006 Walter L. Huber Civil Engineering Research Prize, ASCE (2006)
• 2005-2006 National Center for Supercomputing Applications Faculty Fellow (NCSA) at the University of Illinois at Urbana-Champaign (2005)
• 2003 Xerox Award for Faculty Research, UIUC (2003)
• 2002-2003 Beckman Fellow, Center for Advanced Studies, UIUC (2002)
• 2001-2003 American Bridge Faculty Scholar Award, CEE, UIUC (2001)
• 2000 Presidential Early Career Award for Scientists and Engineers, President of the United Sates of America, William J. Clinton (2000)
• 2000 Arthur Casagrande Professional Development Award, Geo-Institute, ASCE (2000)
• 1999 National Center for Supercomputing Applications Faculty Fellow (NCSA) at the University of Illinois at Urbana-Champaign (1999)
• 1997 Thomas Middlebrooks Award, American Society of Civil Engineers (1997)
• 1994 James Croes Medal, American Society of Civil Engineers (1994)

Public Service Honors

• Chi-Epsilon Honorary member, University of Illinois Chapter (2014)
• Computer and Geotechnics Editor Award (2009)
• 2006 Committee of the Year Award, ASCE Geo-Institute (2006)

Other Honors

• 2022 - Elected - National Academy of Engineering (2022)