[HTML][HTML] Grain-based DEM modelling of mechanical and coupled hydro-mechanical behaviour of crystalline rocks
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 …
scale level allows us to unveil the underlying fundamental mechanisms, thereby facilitating …
A statistical index indicating the degree and mechanical effects of grain size heterogeneity in rocks
Z Han, L Zhang, R Azzam, J Zhou, S Wang - Engineering Geology, 2021 - Elsevier
Mineral grain size heterogeneity is one of the fundamental reasons leading to differences in
rock mechanical behaviours. Several indices have been proposed to quantify grain size …
rock mechanical behaviours. Several indices have been proposed to quantify grain size …
Effect of rock bridge length on fracture and damage modelling in granite containing hole and fissures under cyclic uniaxial increasing-amplitude decreasing-frequency …
Rock mass is often encountered with complicated stress disturbance, the cyclic or fatigue
loading path with fixed loading frequency and amplitude are widely performed. To date …
loading path with fixed loading frequency and amplitude are widely performed. To date …
On the tensile mechanical characteristics of fine-grained granite after heating/cooling treatments with different cooling rates
Q Wu, L Weng, Y Zhao, B Guo, T Luo - Engineering Geology, 2019 - Elsevier
This study discusses the results from tests performed to investigate the tensile mechanical
characteristics of granite after exposure to heating and cooling treatments. The samples …
characteristics of granite after exposure to heating and cooling treatments. The samples …
Influence of grain size heterogeneity on strength and microcracking behavior of crystalline rocks
This study numerically investigates the influence of material heterogeneity on the strength
and deformation behavior and the associated microcracking process of a felsic crystalline …
and deformation behavior and the associated microcracking process of a felsic crystalline …
Determining Young's modulus of granite using accurate grain-based modeling with microscale rock mechanical experiments
It is critical to rigorously determine the mechanical properties of granitic rocks to effectively
analyze and manage subsurface engineering activities, such as geothermal energy …
analyze and manage subsurface engineering activities, such as geothermal energy …
A calibration procedure for two-dimensional laboratory-scale hybrid finite–discrete element simulations
Abstract In recent years, Bonded-Discrete element methods (Bonded-DEM) and hybrid finite–
discrete element methods (FDEM) have become widely employed to model brittle fracturing …
discrete element methods (FDEM) have become widely employed to model brittle fracturing …
A FDEM 3D moisture migration-fracture model for simulation of soil shrinkage and desiccation cracking
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 …
moisture migration process in soil. A simple moisture transport example with analytic …
FDEM numerical study on the mechanical characteristics and failure behavior of heterogeneous rock based on the Weibull distribution of mechanical parameters
P Deng, Q Liu, H Lu - Computers and Geotechnics, 2023 - Elsevier
Rock materials are typically heterogeneous. Traditional digital image processing (DIP)
technology and the grain-based model (GBM) method are difficult to apply to engineering …
technology and the grain-based model (GBM) method are difficult to apply to engineering …
Mechanical properties of brittle rock governed by micro-geometric heterogeneity
This research presents a new heterogeneity index to describe micro-geometric
heterogeneity induced by grain size variation in intact rock. Micro-geometric heterogeneity is …
heterogeneity induced by grain size variation in intact rock. Micro-geometric heterogeneity is …