Coupled phase-field and plasticity modeling of geological materials: From brittle fracture to ductile flow
The failure behavior of geological materials depends heavily on confining pressure and
strain rate. Under a relatively low confining pressure, these materials tend to fail by brittle …
strain rate. Under a relatively low confining pressure, these materials tend to fail by brittle …
Predicting the effective mechanical property of heterogeneous materials by image based modeling and deep learning
In contrast to the composition uniformity of homogeneous materials, heterogeneous
materials are normally composed of two or more distinctive constituents. It is usually …
materials are normally composed of two or more distinctive constituents. It is usually …
Instrumented nanoindentation and 3D mechanistic modeling of a shale at multiple scales
Nanoindentation tests, spanning various length scales ranging from 200 nm to 5 μm deep,
were performed on a sample of organic-rich Woodford shale in both the bedding plane …
were performed on a sample of organic-rich Woodford shale in both the bedding plane …
A SPH approach for large deformation analysis with hypoplastic constitutive model
A hypoplastic constitutive model is implemented in a smoothed particle hydrodynamics code
for the first time. An improved wall boundary treatment is presented for better performance …
for the first time. An improved wall boundary treatment is presented for better performance …
Control-volume distributed multi-point flux approximation coupled with a lower-dimensional fracture model
A cell-centered control-volume distributed multi-point flux approximation (CVD-MPFA) finite-
volume formulation is presented for discrete fracture-matrix simulations. The grid is aligned …
volume formulation is presented for discrete fracture-matrix simulations. The grid is aligned …
Hydromechanical modeling of unsaturated flow in double porosity media
Geomaterials with aggregated structure or containing fissures often exhibit a bimodal pore
size distribution that can be viewed as two coexisting pore regions of different scales. The …
size distribution that can be viewed as two coexisting pore regions of different scales. The …
Stabilized mixed finite elements for deformable porous media with double porosity
Natural geomaterials such as fissured rocks and aggregated soils often exhibit a pore size
distribution with two dominant pore scales, usually termed macropores and micropores …
distribution with two dominant pore scales, usually termed macropores and micropores …
Microstructural and mechanical property characterization of Argillaceous, Kerogen-rich, and Bituminous shale rocks
Shale rocks have become an indispensable natural gas and oil source. Hence, the
knowledge of the mechanical properties of shales is critical for field applications. In this …
knowledge of the mechanical properties of shales is critical for field applications. In this …
Modeling fracture propagation in a rock‐water‐air system with the assumed enhanced strain method
F Liu - International Journal for Numerical Methods in …, 2022 - Wiley Online Library
This article presents a fully coupled finite element method for the single cohesive fracture
propagation in a deformable porous medium (rock) interacting with two immiscible pore …
propagation in a deformable porous medium (rock) interacting with two immiscible pore …
Three-dimensional control-volume distributed multi-point flux approximation coupled with a lower-dimensional surface fracture model
A novel cell-centred control-volume distributed multi-point flux approximation (CVD-MPFA)
finite-volume formulation is presented for discrete fracture–matrix simulations on …
finite-volume formulation is presented for discrete fracture–matrix simulations on …