A continuum framework for coupled solid deformation–fluid flow through anisotropic elastoplastic porous media

Y Zhao, RI Borja - Computer Methods in Applied Mechanics and …, 2020 - Elsevier
We present a continuum framework for coupled solid deformation–fluid flow in anisotropic
elastoplastic porous media. A thermodynamic formulation of the coupled processes gives …

Poroelastic coefficients for anisotropic single and double porosity media

Q Zhang, RI Borja - Acta Geotechnica, 2021 - Springer
Closed-form expressions for poroelastic coefficients are derived for anisotropic materials
exhibiting single and double porosity. A novel feature of the formulation is the use of the …

A novel stabilized NS-FEM formulation for anisotropic double porosity media

Q Zhang, ZY Wang, ZY Yin, YF Jin - Computer Methods in Applied …, 2022 - Elsevier
Self-consistent extension of linear poroelasticity to overlapping scales of porosity within fluid-
saturated anisotropic materials is developed. The coefficient matrix of poromechanical …

A constitutive framework for rocks undergoing solid dissolution

RI Borja, W Chen, AR Odufisan - Journal of the Mechanics and Physics of …, 2023 - Elsevier
We formulate a time-dependent damage theory for rocks subjected to mechanical
deformation and solid dissolution. The constitutive description is inspired by the transition …

Anisotropic elastoplastic response of double-porosity media

Y Zhao, RI Borja - Computer Methods in Applied Mechanics and …, 2021 - Elsevier
We present a continuum framework to simulate fluid flow through anisotropic elastoplastic
media with double porosity. Two effective stress measures σ′ and σ′′ emerge from the …

Impacts of saturation-dependent anisotropy on the shrinkage behavior of clay rocks

SCY Ip, J Choo, RI Borja - Acta Geotechnica, 2021 - Springer
Geomaterials such as soils and rocks can exhibit inherent anisotropy due to the preferred
orientation of mineral grains and/or cracks. They can also be partially saturated with multiple …

An anisotropic viscoplasticity model for shale based on layered microstructure homogenization

J Choo, SJ Semnani, JA White - International Journal for …, 2021 - Wiley Online Library
Viscoplastic deformation of shale is frequently observed in many subsurface applications.
Many studies have suggested that this viscoplastic behavior is anisotropic—specifically …

[HTML][HTML] Multiscale extended finite element method for deformable fractured porous media

F Xu, H Hajibeygi, LJ Sluys - Journal of Computational Physics, 2021 - Elsevier
Deformable fractured porous media appear in many geoscience applications. While the
extended finite element method (XFEM) has been successfully developed within the …

Performance studies of the fixed stress split algorithm for immiscible two-phase flow coupled with linear poromechanics

S Dana, M Jammoul, MF Wheeler - Computational Geosciences, 2021 - Springer
In this work, we measure the performance of the fixed stress split algorithm for the immiscible
water-oil flow coupled with linear poromechanics. The two-phase flow equations are solved …

Hybrid mimetic finite-difference and virtual element formulation for coupled poromechanics

A Borio, FP Hamon, N Castelletto, JA White… - Computer Methods in …, 2021 - Elsevier
We present a hybrid mimetic finite-difference and virtual element formulation for coupled
single-phase poromechanics on unstructured meshes. The key advantage of the scheme is …