Double-phase-field formulation for mixed-mode fracture in rocks
Cracking of rocks and rock-like materials exhibits a rich variety of patterns where tensile
(mode I) and shear (mode II) fractures are often interwoven. These mixed-mode fractures are …
(mode I) and shear (mode II) fractures are often interwoven. These mixed-mode fractures are …
A phase-field model of frictional shear fracture in geologic materials
Geologic shear fractures such as faults and slip surfaces involve marked friction along the
discontinuities as they are subjected to significant confining pressures. This friction plays a …
discontinuities as they are subjected to significant confining pressures. This friction plays a …
Size effects on the strength and cracking behavior of flawed rocks under uniaxial compression: from laboratory scale to field scale
The failure behavior of field-scale rock masses has long been studied indirectly through
laboratory compression tests on rock specimens with preexisting flaws. However, little to no …
laboratory compression tests on rock specimens with preexisting flaws. However, little to no …
Stabilized material point methods for coupled large deformation and fluid flow in porous materials
The material point method (MPM) has been increasingly used for the simulation of large-
deformation processes in fluid-infiltrated porous materials. For undrained poromechanical …
deformation processes in fluid-infiltrated porous materials. For undrained poromechanical …
On the preferential flow patterns induced by transverse isotropy and non-Darcy flow in double porosity media
Fluid flow in isotropic porous media with one porosity scale is a well understood process
and a common scenario in numerous simulations published in the literature. However, there …
and a common scenario in numerous simulations published in the literature. However, there …
Fluid flow through anisotropic and deformable double porosity media with ultra-low matrix permeability: A continuum framework
Fractured porous media or double porosity media are common in nature. At the same time,
accurate modeling remains a significant challenge due to bi-modal pore size distribution …
accurate modeling remains a significant challenge due to bi-modal pore size distribution …
A barrier method for frictional contact on embedded interfaces
We present a barrier method for treating frictional contact on interfaces embedded in finite
elements. The barrier treatment has several attractive features, including:(i) it does not …
elements. The barrier treatment has several attractive features, including:(i) it does not …
Whole-lung finite-element models for mechanical ventilation and respiratory research applications
N Avilés-Rojas, DE Hurtado - Frontiers in Physiology, 2022 - frontiersin.org
Mechanical ventilation has been a vital treatment for Covid-19 patients with respiratory
failure. Lungs assisted with mechanical ventilators present a wide variability in their …
failure. Lungs assisted with mechanical ventilators present a wide variability in their …
A locally conservative mixed finite element framework for coupled hydro-mechanical–chemical processes in heterogeneous porous media
This paper presents a mixed finite element framework for coupled hydro-mechanical–
chemical processes in heterogeneous porous media. The framework combines two types of …
chemical processes in heterogeneous porous media. The framework combines two types of …
Performance studies of the fixed stress split algorithm for immiscible two-phase flow coupled with linear poromechanics
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 …
water-oil flow coupled with linear poromechanics. The two-phase flow equations are solved …