Publications

Recent Journal Articles




  • H. Tang, W. Wei, X. Song and F. Liu. "An anisotropic elastoplastic Cosserat continuum model for shear failure in stratified geomaterials". Engineering Geology. 2021. 293 (11): 106304. DOI:10.1016/j.enggeo.2021.106304.

  • S. Menon and X. Song. "A stable computational nonlocal poromechanics model for dynamics analysis of saturated porous media". International Journal for Numerical Methods in Engineering. 2021. DOI: 10.1002/nme.6762.

  • X. Song and Z. Zhang. "Determination of clay-water contact angle via molecular dynamics and deep-learning enhanced methods". Acta Geotechnica. 2021. DOI: 10.1007/s11440-01238-1.

  • S. Menon and X. Song. "A computational periporomechanics model for localized failure in unsaturated porous media." Computer Methods in Applied Mechanics and Engineering. 2021. DOI: 10.1016/j.cma.2021.113932.

  • X. Song and S. Silling. "On the peridynamic effective force state and multiphase constitutive correspondence principle". Journal of the Mechanics and Physics of Solids. 2020. DOI: 10.1016/j.jmps.2020.104161.

  • S. Menon and X. Song. "Shear banding in unsaturated geomaterials through a strong nonlocal hydromechanical model". European Journal of Environmental and Civil Engineering. 2020. DOI: 10.1080/19648189.2020.1797889.

  • J. Yang, M. Ye, Z. Tang, T. Jiao, X. Song, Y. Pei, and H. Liu, "Using cluster analysis for understanding spatial and temporal patterns and controlling factors of groundwater geochemistry in a regional aquifer". Journal of Hydrology. 2020. DOI: 10.1016/j.jhydrol.2020.124594.

  • K. Wang and X. Song, "Strain localization in non-isothermal unsaturated porous media considering material heterogeneity with stabilized mixed finite elements". Computer Methods in Applied Mechanics and Engineering 2019. DOI: 10.1016/j.cma.2019.112770.

  • S. Menon and X. Song, "Coupled analysis of desiccation cracking in unsaturated soils through a non-nocal mathematical formulation". Geosciences 2019, 9, 428: 1-17. DOI: 10.3390/geosciences9100428.

  • H. Tang, R. Song, Y. Dong and X. Song, "Measurement of restitution and friction coefficients for granular particles and discrete element simulation for the tests of glass beads", Materials Journal. 2019. 12(9): 1-17. DOI: 10.3390/ma12193170.

  • X. Song and M. Wang, "Molecular dynamics modeling of a partially saturated clay-water system at finite temperature". International Journal for Numerical and Analytical Methods in Geomechanics. 2019. DOI:10.1002/nag.2944.

  • Z-Y Ai, J-J Mu, X. Song, and Y-Z Zhao. "Multi-dimensional consolidation analysis of transversely isotropic viscoelastic saturated soils" Engineering Geology. 2019. DOI: 10.1016/j.enggeo.2019.02.022.

  • W. Niu, W. Ye, and X. Song. "Unsaturated permeability of Gaomiaozi bentonite under partially free-swelling conditions". Acta Geotechnica. 2019. DOI: 10.1007/s11440-019-00788-9.

  • Z. Chen, J. Cao, B. Bate, and X. Song. Reply to “Discussion of ‘On the soil-water characteristic curves of poorly graded granular materials in aqueous polymer solutions’ by Junnan Cao, Jongwon Jung, Xiaoyu Song, and Bate Bate, Acta Geotechnica, 2018, 13(1):103–116”. Acta Geotechinca. 2019. Issue 2, 2019. DOI: 10.1007/s11440-019-00796-9.

  • T. Nguyen, M. McVay, X. Song, R. Herrera, S. Wasman, and K. Wang. "Strength envelopes of Florida carbonate-rocks near ground surface" ASCE's Journal of Geotechnical and Geoenvironmental Engineering. 2019. DOI: 10.1061/(ASCE)GT.1943-5606.0002069.

  • Z-Y Ai, Z. Ye, X. Song, and L. Wang. " Thermo-mechanical performance of layered transversely isotropic media around a cylindrical/tubular heat source" Acta Geotechinca published by Springer Nature. 2018. Pages (1-18), DOI: 10.1007/s11440-018-0722-x.

  • X. Song and N. Khalili. "A peridynamics model for strain localization analysis of geomaterials" International Journal for Numerical and Analytical Methods in Geomechanics. 2018. pages (1-21), DOI:10.1002/nag.2854.

  • X. Song, K. Wang, B. Bate. "A hierarchical thermo-hydro-plastic constitutive model for unsaturated soils and its numerical implementation" International Journal for Numerical and Analytical Methods in Geomechanics. 2018. pages (1-22), DOI: 10.1002/nag.2811.

  • X. Song and S. Menon. "Modeling of chemo-hydro-mechanical behavior of unsaturated porous media: a nonlocal approach based on integral equations". Acta Geotechinca published by Springer Nature. 2018. pages (1-21), DOI: 10.1007/s11440-018-0679-9.

  • Z. Y. Ai, P. C. Li, X. Song and B. K. Shi. "Analysis of an axially pile in saturated multi-layered soils with anisotropic permeability and elastic superstrata". Computers and Geotechnics. 2018. 98: 93-101. https://doi.org/10.1016/j.compgeo.2018.02.004.

  • Cao, J., Jung, J., Song, X., and B. Bate. "On the soil-water characteristic curves of poorly-graded granular materials in aqueous polymer solutions". Acta Geotechnica. 2017. DOI: 10.1007/s11440-017-0568-7.

  • X. Song, M. Ye, and K. Wang. "Strain localization in a solid-water-air system with random heterogeneity via stabilized mixed finite elements". International Journal for Numerical Methods in Engineering. 2017. DOI:10.1002/nme.5590. PDF

  • X. Song, K. Wang, and M. Ye. "Localized failure in unsaturated soils under non-isothermal conditions". Acta Geotechnica. 2017. DOI:10.1007/s11440-017-0534-4.

  • X. Song. "Transient bifurcation condition of partially saturated porous media at finite strain." International Journal for Numerical and Analytical Methods in Geomechanics. 2016. DOI: 10.1002/nag.2552.

  • X. Song and R. I. Borja. "Mathematical framework for unsaturated flow in the finite deformation range." International Journal for Numerical Methods in Engineering. 2014. 14(9): 658-682.

  • X. Song and R. I. Borja. "Finite deformation and fluid flow in unsaturated soils with random heterogeneity." Vadose Zone Journal. 2014. 13(5). DOI: 10.2136/vzj2013.07.0131.

  • R. I. Borja, X. Song and W. Wu. "Critical state plasticity. Part VII: Triggering a shear band in variably saturated porous media." Computer Methods in Applied Mechanics and Engineering. 2013. 261:66-82.

  • R. I. Borja, X. Song, A. L. Rechenmacher, S. Abedi, and W. Wu. "Shear band in sand with spatially varying density." Journal of the Mechanics and Physics of Solids. 2013. 61:219-234.



Technical Reports


Hurricane Irma was a category 5 hurricane on the Saffir-Simpson hurricane wind scale. Irma made landfall in the U.S. on Cudjoe Key (near Big Pine and Summerland Keys) in the morning of September 10, still being a category 4 hurricane, and made a second landfall on Marco Island, south of Naples, on the same day as a category 3 hurricane. Two teams from the Geotechnical Extreme Events Reconnaissance (GEER) Association, supported by the National Science Foundation, were deployed to investigate geotechnical impacts of flooding, storm surge and wave forcing in Florida in response to Hurricane Irma in September of 2017. The teams worked collaboratively with federal, state, and local organizations in Florida (from http://www.geerassociation.org).

Refereed Book Chapters / Conference Papers


  • Z. Zhang, X. Song. "Characterizing the impact of temperature on clay-water contact angle in geomaterials during extreme events by deep learning enhanced methods", 10 pages. ASCE Geo-Extreme Proceedings, 2021.

  • M. Shashank, X. Song. "Dynamic localized failure in soils via a nonlocal poromechanics model: Case study of San Fernando Dam failure", 10 pages, ASCE Geo-Extreme Proceedings, 2021.

  • W.J. Likos, X. Song, M. Xiao, A. Cerato and N. Lu. “Fundamental challenges in unsaturated soil mechanics.” Geotechnical Fundamentals for Addressing New World Challenges. Editors: Lu, N. and Mitchell, J.K. Springer Nature Switzerland AG, 2019. doi: 10.1007/978-3-030-06249-1_8.

  • X. Song, Shashank Menon. Modeling strain localization of unsaturated porous media with chemical effect through a novel non-local method. Proceedings of the ISSMGE TC105 International Symposium IS-Atlanta 2018 on “Geo-Mechanics from Micro to Macro in Research and Practice”. Atlanta, 2018. pp 1-6. doi:...... .

  • X. Song, M. Wang, K. Zhang. Molecular dynamics modeling of unsaturated clay-water systems at elevated temperature. Proceedings of the 7th International Conference of Unsaturated Soils. Hong Kong, 2018. pp.1-5. doi:.....

  • R. Borja, X. Song. Chapter 2. Strain localization in porous materials with spatially varying density and degree of saturation. Computer Methods and Recent Advances in Geomechanics. Edited by Fusao Oka, Akira Murakam, Ryosuke Uzuoka, and Sayuri Kimoto. CRC Press 2014. Pages 13-16.

  • X. Song, R.I. Borja and W. Wu. Triggering a shear band in variably saturated porous materials. Poromechanics V: Proceedings of the Fifth Biot Conference on Poromechanics. 2013. pp. 367-370. doi: 10.1061/9780784412992.043.

  • X. Song and R. I. Borja. Persistent shear band in variably saturated porous materials. Proceedings of the Third International Symposium on Computational Geomechanics (ComGeo III). Krakow, Poland, August 2013.

  • X. Song, G. Idinger, R. I. Borja and Wei Wu. Finite element simulation of strain localization in unsaturated soils. Unsaturated Soils: Research and Applications, Volume 2, edited by Mancuso, Claudio; Jommi, Cristina; D\'onza, Francesca. 2012. pp 189-195. doi: 10.1007/978-3-642-31343-1{\_}24.

Presentations & Abstract


  • S. Menon and X. Song. A fully coupled state-based peri-hydromechanical model for geomaterials. Recent Advances in Computational Geomechanics. The First International Symposium on “COMPUTATIONAL & GEOENVIRONMENTAL GEOMECHANICS FOR UNDERGROUND AND SUBSURFACE STRUCTURES” (COGGUS2), Nancy, France, February 2019.

  • X. Song, S. Menon. Modeling Shear Banding of Three-phase Geological Materials with Chemical Effect through A Novel Non-local Method. The AGU Fall Meeting 2018.

  • X. Song, S. Menon. Modeling strain localization of unsaturated porous media with chemical effect through a novel non-local method. The ISSMGE TC105 International Symposium IS-Atlanta 2018 on “Geo-Mechanics from Micro to Macro in Research and Practice”. Atlanta, 2018.

  • X. Song, S. Menon. A non-local chemo-plastic model for unsaturated soils and strain localization analysis. ASCE EMI Conference 2018, organized by Massachusetts Institute of Technology & University of Massachusetts Dartmouth, Boston, May 29 - June 1, 2018.

  • X. Song, M. Wang, K. Zhang. Molecular dynamics modeling of unsaturated clay-water systems at elevated temperature. The 7th International Conference of Unsaturated Soils. Hong Kong University of Science and Technology (HKUST), August 2-5, 2018.

  • X. Song. A Physical-Based Multi-Scale Computational Framework for Modeling Unsaturated Soils​. White paper and presentation. The NSF Workshop on Geotechnical Fundamentals in the Face of New World Challenges at NSF (Invitation only), July 2016

  • X. Song, R. Borja. A thermo-elastoplastic constitutive model for unsaturated soils and its numerical implementation. Absract and presentation. ASCE EMI Conference 2015 at Stanford University, Stanford, CA 2015.

  • X. Song and R. I. Borja. Localization of deformation in unsaturated porous materials with large deformation. Presentation. 17th U.S. National Congress on Theoretical & Applied Mechanics, Michigan State University, June 2014.

  • X. Song and R. I. Borja. Strain localization in unsaturated soils with large deformation. Presentation. SES 51st Annual Technical Meeting, Purdue University, October 1-3, 2014.

  • X. Song and R. I. Borja. Failure of geomaterials in variably saturated soils. Presentation. The AGU Fall Meeting, San Francisco, December 2013.

  • R. I. Borja and X. Song. Multiscale and multiphysical aspects of failure in variably saturated porous media. Abstract. EMI Conference of ASCE, Northwestern Univeristy, August 2013.

  • R. I. Borja and X. Song. Multiscale and multiphysical aspects of failure in variably saturated porous media. Abstract. 5th International Conference on Porous Media \& Annual Meeting, Prague, Czech Republic, May 2013.

  • X. Song. Mathematical framework for unsaturated flow through highly deformable porous media. The Blume Summer Seminar, Stanford University, August 2013.

  • X. Song and R. I. Borja. Shear band in soil with heterogeneous density and degree of saturation. Abstract. The AGU Fall Meeting, San Francisco, December 2012.

  • X. Song. Multiphysics aspects of multiphase media. The Blume Summer Seminar, Stanford University, August 2012.