A review on phase-field modeling of hydraulic fracturing

Y Heider - Engineering Fracture Mechanics, 2021 - Elsevier
Motivated by the successful implementation of the phase-field method (PFM) to simulate
complicated fracture patterns at moderate computational costs in solid materials, many …

A framework for data-driven solution and parameter estimation of PDEs using conditional generative adversarial networks

T Kadeethum, D O'Malley, JN Fuhg, Y Choi… - Nature Computational …, 2021 - nature.com
Here we employ and adapt the image-to-image translation concept based on conditional
generative adversarial networks (cGAN) for learning a forward and an inverse solution …

A mixed-mode phase field fracture model in anisotropic rocks with consistent kinematics

EC Bryant, WC Sun - Computer Methods in Applied Mechanics and …, 2018 - Elsevier
Under a pure tensile loading, cracks in brittle, isotropic, and homogeneous materials often
propagate such that pure mode I kinematics are maintained at the crack tip. However …

Double-phase-field formulation for mixed-mode fracture in rocks

F Fei, J Choo - Computer Methods in Applied Mechanics and …, 2021 - Elsevier
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 …

Cam-Clay plasticity. Part IX: On the anisotropy, heterogeneity, and viscoplasticity of shale

RI Borja, Q Yin, Y Zhao - Computer Methods in Applied Mechanics and …, 2020 - Elsevier
We investigate three aspects of material behavior in this ninth installment of the Cam-Clay
series, namely, anisotropy, heterogeneity, and viscoplasticity. The main focus of the paper is …

Dynamic strain localization into a compaction band via a phase-field approach

Y Wang, RI Borja, W Wu - Journal of the Mechanics and Physics of Solids, 2023 - Elsevier
We present a new phase-field formulation for the formation and propagation of a compaction
band in high-porosity rocks. Novel features of the proposed formulation include (a) the …

A phase-field model of frictional shear fracture in geologic materials

F Fei, J Choo - Computer Methods in Applied Mechanics and …, 2020 - Elsevier
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 …

Comparative verification of hydro-mechanical fracture behavior: Task G of international research project DECOVALEX–2023

M Mollaali, O Kolditz, M Hu, CH Park, JW Park… - International Journal of …, 2023 - Elsevier
Numerical simulations become a necessity when experimental approaches cannot cover the
required physical and time scale of interest. One of such area is a simulation of long-term …

A phase field framework for capillary-induced fracture in unsaturated porous media: Drying-induced vs. hydraulic cracking

Y Heider, WC Sun - Computer Methods in Applied Mechanics and …, 2020 - Elsevier
This manuscript introduces a unified mathematical framework to replicate both desiccation-
induced and hydraulic fracturing in low-permeable unsaturated porous materials observed …

Size effects on the strength and cracking behavior of flawed rocks under uniaxial compression: from laboratory scale to field scale

J Choo, Y Sun, F Fei - Acta Geotechnica, 2023 - Springer
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 …