73 citations · 397 across the 16 of their papers we have counts for
7 papers · 1 filter
Hybrid mimetic finite-difference and virtual element formulation for coupled poromechanics
Andrea Borio, François Hamon, Nicola Castelletto +2
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 that…
An anisotropic viscoplasticity model for shale based on layered microstructure homogenization
Jinhyun Choo, Shabnam J. Semnani, Joshua A. White
Viscoplastic deformation of shale is frequently observed in many subsurface applications. Many studies have suggested that this viscoplastic behavior is anisotropic---specifically,…
Simulation of coupled multiphase flow and geomechanics in porous media with embedded discrete fractures
Matteo Cusini, Joshua A. White, Nicola Castelletto +1
In fractured natural formations, the equations governing fluid flow and geomechanics are strongly coupled. Hydrodynamical properties depend on the mechanical configuration, and the…
Nonlinear multigrid based on local spectral coarsening for heterogeneous diffusion problems
Chak Shing Lee, François Hamon, Nicola Castelletto +2
This work develops a nonlinear multigrid method for diffusion problems discretized by cell-centered finite volume methods on general unstructured grids. The multigrid hierarchy is…
An Inelastic Homogenization Framework for Layered Materials with Planes of Weakness
Shabnam J. Semnani, Joshua A. White
Many geologic materials have a composite structure, in which macroscopic mechanical behavior is determined by the properties, shape, and heterogeneous distribution of individual co…
Efficient solvers for hybridized three-field mixed finite element coupled poromechanics
Matteo Frigo, Nicola Castelletto, Massimiliano Ferronato +1
We consider a mixed hybrid finite element formulation for coupled poromechanics. A stabilization strategy based on a macro-element approach is advanced to eliminate the spurious pr…