[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 …
Numerical investigation of brittleness effect on strength and microcracking behavior of crystalline rock
J Peng, C Xu, B Dai, L Sun, J Feng… - International Journal of …, 2022 - ascelibrary.org
Brittleness has a significant influence on rock failure under compression; however, the
mechanism is rarely comprehensively discussed. This study numerically investigates the …
mechanism is rarely comprehensively discussed. This study numerically investigates the …
Investigating the crack initiation and propagation mechanism in brittle rocks using grain-based finite-discrete element method
Fracturing process and possible factors influencing crack initiation, propagation and
coalescence of granitic rocks are investigated using a grain-based finite-discrete element …
coalescence of granitic rocks are investigated using a grain-based finite-discrete element …
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 …
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 …
Transgranular fracturing of crystalline rocks and its influence on rock strengths: Insights from a grain-scale continuum–discontinuum approach
The aim of this study is to understand the effects of micro-heterogeneity, such as grain size,
morphology and mineralogy, on the initiation, propagation and coalescence of microcracks …
morphology and mineralogy, on the initiation, propagation and coalescence of microcracks …
Mechanical responses and fracturing behaviors of coal under complex normal and shear stresses, Part I: Experimental results
This work presents experimental tests based on coal collected from a coal mine based
underground water reservoir (CMUWR). The mechanical responses of dry and water …
underground water reservoir (CMUWR). The mechanical responses of dry and water …
Numerical simulation of microstructure of brittle rock using a grain-breakable distinct element grain-based model
F Gao, D Stead, D Elmo - Computers and Geotechnics, 2016 - Elsevier
A distinct element grain-based method (GBM) was developed to simulate the microstructure
of rock-like materials. Using this method, a UDEC-GBM model can be readily constructed …
of rock-like materials. Using this method, a UDEC-GBM model can be readily constructed …
Fluid-driven micro-cracking behaviour of crystalline rock using a coupled hydro-grain-based discrete element method
The grain-scale heterogeneity of rock has been found to greatly affect the cracking
behaviour in mechanical tests. However, the heterogeneity has been insufficiently …
behaviour in mechanical tests. However, the heterogeneity has been insufficiently …
Modeling micro-cracking behavior of Bukit Timah granite using grain-based model
Rock strength and deformation behavior has long been recognized to be closely related to
the microstructure and the associated micro-cracking process. A good understanding of …
the microstructure and the associated micro-cracking process. A good understanding of …