TY - JOUR
T1 - DEM modelling of granular materials with real shape morphology
AU - Li, Yang
AU - Otsubo, Masahide
AU - Kuwano, Reiko
AU - Nadimi, Sadegh
AU - Angelidakis, Vasileios
PY - 2021/11/1
Y1 - 2021/11/1
N2 - Particle shape of a non-spherical particle (clump) was reconstructed with the application of X-ray computed tomography (μCT). Shapes of the generated clumps were quantitatively estimated and correlated with the number of spheres (Ns). Subsequently, granular assemblies were prepared using these clumps in DEM simulations. After isotropic consolidation, the void ratio (e0) and mean coordination number ( 퐶N) of granular assemblies were correlated with Ns and overall regularity (OR), respectively. The DEM results found Ns=25 for clumps is sufficient to represent the real particle shapes. Meanwhile, e0 and CN were found to decrease with the increase of OR.
AB - Particle shape of a non-spherical particle (clump) was reconstructed with the application of X-ray computed tomography (μCT). Shapes of the generated clumps were quantitatively estimated and correlated with the number of spheres (Ns). Subsequently, granular assemblies were prepared using these clumps in DEM simulations. After isotropic consolidation, the void ratio (e0) and mean coordination number ( 퐶N) of granular assemblies were correlated with Ns and overall regularity (OR), respectively. The DEM results found Ns=25 for clumps is sufficient to represent the real particle shapes. Meanwhile, e0 and CN were found to decrease with the increase of OR.
U2 - 10.11188/SEISANKENKYU.73.355
DO - 10.11188/SEISANKENKYU.73.355
M3 - Article
SN - 1881-2058
VL - 73
SP - 355
EP - 358
JO - Seisan Kenkyu
JF - Seisan Kenkyu
IS - 5
ER -