Computational Simulations
Our research aims to develop next-generation solutions to geomechanical challenges related to safeguarding and decarbonizing the built environment. We combine physics-based models, computational simulations, and data-driven methods to understand, predict, and control the responses of subsurface systems to loadings, fluid flows, temperature changes, and other phenomena.
Large deformations and their interactions with structures
We develop computational methods and models
Related Publications:
Circumventing volumetric locking in explicit material point methods: A simple, efficient, and general approach
Y. Zhao, C. Jiang, and J. Choo. International Journal for Numerical Methods in Engineering, Published online. doi:10.1002/nme.7347
Coupled material point and level set methods for simulating soils interacting with rigid objects with complex geometry
Y. Zhao, J. Choo, Y. Jiang, and L. Li. Computers and Geotechnics, 163, 105708, 2023. doi:10.1016/j.compgeo.2023.105708
Hybrid continuum–discrete simulation of granular impact dynamics
Y. Jiang, Y. Zhao, C.E. Choi, and J. Choo. Acta Geotechnica, 17, 5597–5612, 2022. doi:10.1007/s11440-022-01598-2
Stabilized material point methods for coupled large deformation and fluid flow in porous materials
Y. Zhao and J. Choo. Computer Methods in Applied Mechanics and Engineering, 362, 112742, 2020. doi:10.1016/j.cma.2019.112742
Fractures, Discontinuities, and Damages
Rock fracturing
Discontinuities
Shale behavior
Fluid flow, heat transfer, and checmical reactions in porous media
Related Publications:
Impacts of saturation-dependent anisotropy on the shrinkage behavior of clay rocks
S.C.Y. Ip, J. Choo, and R.I. Borja. Acta Geotechnica, 16(11), 3381–3400, 2021. doi:10.1007/s11440-021-01268-9
A locally conservative mixed finite element framework for coupled hydro-mechanical-chemical processes in heterogeneous porous media
T. Kadeethum, S. Lee, F. Ballarin, J. Choo, and H.M. Nick. Computers & Geosciences, 152, 104774, 2021. doi:10.1016/j.cageo.2021.104774
Stabilized mixed continuous/enriched Galerkin formulations for locally mass conservative poromechanics
J. Choo. Computer Methods in Applied Mechanics and Engineering, 357, 112568, 2019. doi:10.1016/j.cma.2019.112568
On the preferential flow patterns induced by transverse isotropy and non-Darcy flow in double porosity media
Q. Zhang, J. Choo, and R.I. Borja. Computer Methods in Applied Mechanics and Engineering, 353, 570–592, 2019. doi:10.1016/j.cma.2019.04.037
Large deformation poromechanics with local mass conservation: An enriched Galerkin finite element framework
J. Choo, International Journal for Numerical Methods in Engineering, 116(1), 66–90, 2018. doi:10.1002/nme.5915
Cracking and damage from crystallization in pores: Coupled chemo-hydro-mechanics and phase-field modeling
J. Choo and W. Sun. Computer Methods in Applied Mechanics and Engineering, 335, 347–379, 2018. doi:10.1016/j.cma.2018.01.044
Enriched Galerkin finite elements for coupled poromechanics with local mass conservation
J. Choo and S. Lee. Computer Methods in Applied Mechanics and Engineering, 341, 311–332, 2018. doi:10.1016/j.cma.2018.06.022
Hydromechanical modeling of unsaturated flow in double porosity media
J. Choo, J.A. White, and R.I. Borja. International Journal of Geomechanics, 16(6), D4016002, 2016. doi: 10.1061/(ASCE)GM.1943-5622.0000558
Stabilized mixed finite elements for deformable porous media with double porosity
J. Choo and R.I. Borja. Computer Methods in Applied Mechanics and Engineering, 293, 131–154, 2015. doi: 10.1016/j.cma.2015.03.023
Constitutive Modeling of Geomaterials
Energy geostructures
Nuclear waste disposal
Underground energy storage
Geologic carbon sequestration
