Variational modeling of hydromechanical fracture in saturated porous media: A micromechanics-based phase-field approach

J Ulloa, N Noii, R Alessi, F Aldakheel… - Computer Methods in …, 2022 - Elsevier
This paper presents a novel variational phase-field model for different fracture processes in
fully saturated porous media. As a key feature, the model employs a micromechanics-based …

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 …

Experimental characterization and numerical modelling of fracture processes in granite

F Parisio, A Tarokh, R Makhnenko, D Naumov… - International Journal of …, 2019 - Elsevier
Failure in brittle rock happens because micro-cracks in the crystal structure coalesce and
form a localized fracture. The propagation of the fracture is in turn strongly influenced by …

Semi‐brittle deformation of Carrara marble: Hardening and twinning induced plasticity

E Rybacki, L Niu, B Evans - Journal of Geophysical Research …, 2021 - Wiley Online Library
Semi‐brittle flow occurs when crystal plasticity and cataclastic mechanisms operate
concurrently and may be common at mid‐levels of the Earth's crust. Using a Paterson gas …

Fatigue damage evolution behaviors and fractional fatigue mechanical model of monzogabbro under true triaxial disturbance test

Z Zheng, H Xu, W Wang, G Mei, W Cai, Z Tang… - International Journal of …, 2024 - Elsevier
The disturbance wave caused by excavation or blasting of underground surrounding rock
causes fatigue degradation effect of rock and eventually leads to disasters. However, the …

Micro-macro mechanics of damage and healing in rocks

C Arson - Open Geomechanics, 2020 - … .centre-mersenne.org
This paper presents the state of the art of the theory of rock damage and healing mechanics,
with a particular emphasis on the strategies available to relate the micro-scale of crystals …

A finite strain numerical procedure for a circular tunnel in strain-softening rock mass with large deformation

K Guan, W Zhu, J Wei, X Liu, L Niu, X Wang - International Journal of Rock …, 2018 - Elsevier
The reliable prediction of excavation responses for squeezing rock remains a challenging
issue in rock engineering. This paper presents a numerical procedure for a strain-softening …

A multi-scale model of plasticity and damage for rock-like materials with pores and inclusions

YJ Cao, WQ Shen, JF Shao, W Wang - International Journal of Rock …, 2021 - Elsevier
A multi-scale model is developed for modeling of plastic deformation and induced damage
in rock-like materials containing pores and mineral inclusions. An analytical macroscopic …

A Novel Dynamic Fractional Mechanical Model for Rock Fracture Under True Triaxial Static-Dynamic Combined Loading and its Engineering Application

Z Zheng, R Li, S Li, G Lu, Q Zhang, S Qiu - Rock Mechanics and Rock …, 2024 - Springer
The frequent far-field microdynamic disturbance caused by excavation of high-stress deep
underground engineering will induce the continuous damage deterioration of surrounding …

Stress–Strain Modeling and Brittleness Variations of Low-Clay Shales with CO2/CO2-Water Imbibition

Q Lyu, J Tan, JM Dick, Q Liu… - Rock Mechanics and …, 2019 - Springer
A better understanding of the stress–strain behaviors of shale samples after shale-CO 2 or
shale-water–CO 2 interactions is of great importance to CO 2 enhanced shale gas …