A FDEM-based 2D coupled thermal-hydro-mechanical model for multiphysical simulation of rock fracturing

C Yan, X Xie, Y Ren, W Ke, G Wang - International Journal of Rock …, 2022 - Elsevier
A coupled thermal-hydro-mechanical (THM) model based on the combined finite-discrete
element method (FDEM) is presented for simulating rock cracking driven by multi-physics …

Investigating the influence of water on swelling deformation and mechanical behavior of mudstone considering water softening effect

T Wang, C Yan - Engineering Geology, 2023 - Elsevier
Mudstone not only swells and deforms but also be softened during water absorption
because it contains many hydrophilic clay minerals. To study the influence of water on the …

Numerical study on the deformation and failure of soft rock roadway induced by humidity diffusion

T Wang, C Yan, G Wang, Y Zheng, W Ke… - … and Underground Space …, 2022 - Elsevier
In underground space engineering, the humidity in the environment has a great influence on
the structural performance of soft rock roadway. It not only changes the stress state of rock …

A three-dimensional thermal-hydro-mechanical coupling model for simulation of fracturing driven by multiphysics

C Yan, Z Zhao, Y Yang, H Zheng - Computers and Geotechnics, 2023 - Elsevier
Geothermal mining, nuclear waste disposal, and other projects involve rock fracturing under
the multiphysics effect. There is an urgent need for a numerical analysis tool that can …

A 2D adaptive finite-discrete element method for simulating fracture and fragmentation in geomaterials

C Yan, Y Zheng, G Wang - International Journal of Rock Mechanics and …, 2023 - Elsevier
This study proposes a new two-dimensional finite-discrete element method (FDEM) using
dynamically inserted cohesive elements. Unlike the conventional FDEM, which sets up …

A FDEM 3D moisture migration-fracture model for simulation of soil shrinkage and desiccation cracking

C Yan, Y Zheng, W Ke, G Wang - Computers and Geotechnics, 2021 - Elsevier
This paper proposes a three-dimensional moisture migration model, which can simulate the
moisture migration process in soil. A simple moisture transport example with analytic …

Optimum spacing and rock breaking efficiency of TBM double disc cutters penetrating in water-soaked mudstone with FDEM

T Wang, C Yan, H Zheng, W Ke, S Ali - Tunnelling and Underground Space …, 2023 - Elsevier
Cutter spacing is one of the key factors affecting the rock breaking efficiency of Tunnel
Boring Machine (TBM). In the excavation of deep soft rock tunnels, the water content can …

On the convexity of phase-field fracture formulations: Analytical study and comparison of various degradation functions

L Svolos, JYN Plohr, G Manzini, HM Mourad - International Journal of Non …, 2023 - Elsevier
Efficient and accurate fracture modeling is of great importance in applications where
catastrophic outcomes under extreme scenarios are possible. The phase-field (PF) …

A 2D FDEM-based moisture diffusion–fracture coupling model for simulating soil desiccation cracking

C Yan, T Wang, W Ke, G Wang - Acta Geotechnica, 2021 - Springer
Based on the combined finite–discrete element method (FDEM), this paper presents a
moisture diffusion–fracture coupling model to simulate soil desiccation cracking. The …

Microfracture behavior and energy evolution of heterogeneous mudstone subjected to moisture diffusion

T Wang, C Yan, H Zheng, Y Zheng, G Wang - Computers and Geotechnics, 2022 - Elsevier
Moisture has a great effect on the microstructure of mudstone and the stability of muddy
strata. Due to many clay minerals in mudstone, swelling deformation and even disintegration …