[HTML][HTML] Grain-based DEM modelling of mechanical and coupled hydro-mechanical behaviour of crystalline rocks

L Kong, J Shang, RP Gamage, BQ Li, Y Song, W Cai… - Engineering …, 2024 - Elsevier
Mineral grains serve as the basic units of rocks. Understanding rock materials at the grain-
scale level allows us to unveil the underlying fundamental mechanisms, thereby facilitating …

Dynamic shear fracture behavior of rocks: insights from three-dimensional digital image correlation technique

C Zhang, D Li, J Ma, Q Zhu, P Luo, Y Chen… - Engineering Fracture …, 2023 - Elsevier
The influence of the loading rate on the mode I fracture property of rocks has been
extensively investigated through experiments. However, the rate-effect of the dynamic mode …

Dynamic strength and full-field cracking behaviours of pre-cracked rocks under impact loads

L Liu, H Li, G Zhang, S Fu - International Journal of Mechanical Sciences, 2024 - Elsevier
The impact loads have a significant influence on the dynamic strength and cracking
behaviours of pre-cracked rocks, which plays a key role in the stability and safety of rock …

Experimental and numerical study on the dynamic mode III fracture behaviors of rock using an axially notched flattened Brazilian disc in SHPB tests

Z Yan, J **, L Wang, J Wang - International Journal of Impact Engineering, 2024 - Elsevier
The dynamic mode I and mode II fracture of rock have been widely investigated over the
past decades. However, the lack of dynamic mode III fracture testing method and the rare …

The influence of mechanical heterogeneity of grain boundary on mechanical and microcracking behavior of granite under mode I loading using a grain-based model

X Hu, D Liao, H Hu, S **e, N **e, X Gong - Rock Mechanics and Rock …, 2024 - Springer
Granite is a heterogeneous material characterized by a significant population of
mechanically distinct grain boundaries, which exert a substantial influence on crack …

[HTML][HTML] In-situ deformation and fracturing characteristics of geomaterials under dynamic loading: insights from ultra-high-speed X-ray phase contrast imaging and …

HC Wang, K Liu, B Lukic, WR Hu… - International Journal of …, 2024 - Elsevier
Dynamic loadings, such as earthquakes, blasts, and impacts, are commonly encountered in
mining and underground infrastructures, and therefore predicting the failure of geomaterials …

Investigations on the macro‐meso mechanical properties and energy dissipation mechanism of granite shear fracture under dynamic disturbance

G Wang, YI Luo, H Gong, T Liu, X Li… - International Journal for …, 2023 - Wiley Online Library
To explore the mechanical characteristics and failure mechanisms of rock shear fracture
under dynamic disturbance, the laboratory shear test and numerical simulation based on …

[HTML][HTML] Dynamic shear behaviours of granite under coupled static and high-rate loadings

K Liu, J Zhao - International Journal of Rock Mechanics and Mining …, 2024 - Elsevier
Understanding dynamic shear behaviours of rock under quasi-static confinement and
dynamic loads is not only of great importance in underground engineering structures, but …

Dynamic pulverization of rock under triaxial static-stress and high-rate shearing

K Liu, W Hu, J Zhao - Rock Mechanics and Rock Engineering, 2024 - Springer
A long-term opening problem in geophysics and engineering is the generation mechanism
of rock pulverization (eg, fault gouge) within the shear zone when subjected to triaxial stress …

[HTML][HTML] Modelling dynamic fracture and fragmentation of rocks under multiaxial coupled static and dynamic loads with a parallelised 3D FDEM

H Han, D Fukuda, H Liu, Q Zhang, J Zhao, D Wu… - Computers and …, 2024 - Elsevier
In this study, a three-dimensional (3D) combined finite-discrete element method (FDEM)
based simulator, which enables the robust simulation of full-scale triaxial Hopkinson bar (Tri …