Effect of model scale and particle size distribution on PFC3D simulation results
This paper investigates the effect of model scale and particle size distribution on the
simulated macroscopic mechanical properties, unconfined compressive strength (UCS) …
simulated macroscopic mechanical properties, unconfined compressive strength (UCS) …
Size effect and anisotropy in a transversely isotropic rock under compressive conditions
A series of uniaxial and triaxial compression tests were performed on slate samples with
different diameters at different foliation orientations with respect to the direction of the major …
different diameters at different foliation orientations with respect to the direction of the major …
[HTML][HTML] Theory and experiment on true mode II fracturing of rocks
This paper discusses the use of the double-edge notched Brazilian disk test (DNBD) for
measuring true mode II fracture toughness of rocks. The term true emphasises that in this …
measuring true mode II fracture toughness of rocks. The term true emphasises that in this …
Three-dimensional numerical simulation on triaxial failure mechanical behavior of rock-like specimen containing two unparallel fissures
A three-dimensional particle flow code (PFC3D) was used for a systematic numerical
simulation of the strength failure and cracking behavior of rock-like material specimens …
simulation of the strength failure and cracking behavior of rock-like material specimens …
A new contact model to improve the simulated ratio of unconfined compressive strength to tensile strength in bonded particle models
The bonded particle model (BPM) has been increasingly used to simulate and analyze the
mechanical behavior of rocks. However, traditional BPMs that use symmetric particles bear …
mechanical behavior of rocks. However, traditional BPMs that use symmetric particles bear …
Geometry effects and statistical analysis of mode I fracture in guiting limestone
This paper describes the results of a series of tests conducted to study the mode I fracture
toughness of a sedimentary soft rock (Guiting Limestone). Two types of tests were used …
toughness of a sedimentary soft rock (Guiting Limestone). Two types of tests were used …
Measurement and calibration of the discrete element parameters of wet bulk coal
R Xia, B Li, X Wang, T Li, Z Yang - Measurement, 2019 - Elsevier
To simulate the interactions between the coal mining machinery and bulk coal accurately,
the parameters of wet bulk coal were calibrated using the discrete element method (DEM) …
the parameters of wet bulk coal were calibrated using the discrete element method (DEM) …
Roles of model size and particle size distribution on macro-mechanical properties of Lac du Bonnet granite using flat-joint model
K Li, Y Cheng, X Fan - Computers and Geotechnics, 2018 - Elsevier
In this study, a new calibration procedure was proposed to calibrate the micro-parameters
for the flat-joint model. Both uniaxial compression and Brazilian test simulations were …
for the flat-joint model. Both uniaxial compression and Brazilian test simulations were …
Effects of specimen size and thermal-damage on physical and mechanical behavior of a fine-grained marble
Both thermal damage and specimen size have a significant influence on the rock strength
and deformation behavior. This study experimentally investigates the combined influences …
and deformation behavior. This study experimentally investigates the combined influences …
Numerical investigation of the influence of specimen size on the unconfined strength of defected rocks
N Bahrani, PK Kaiser - Computers and Geotechnics, 2016 - Elsevier
A grain-based distinct element model (GBM) is used to investigate the influence of specimen
size on the strength of intact (not defected) and defected rocks. The defected specimens are …
size on the strength of intact (not defected) and defected rocks. The defected specimens are …