A novel parameter inversion method for an improved DEM simulation of a river damming process by a large-scale landslide

WJ Xu, Q Xu, GY Liu, HY Xu - Engineering Geology, 2021 - Elsevier
Abstract The Discrete Element Method (DEM) is one of the most common numerical
methods employed for the study of landslide disasters. Herein, this study proposes a method …

DEM contact model for spherical and polyhedral particles based on energy conservation

GY Liu, WJ Xu, Q Zhou - Computers and Geotechnics, 2023 - Elsevier
The mechanical behaviors of granular materials are greatly influenced by the geometric
shapes, which is widely investigated using the discrete element method (DEM). Accurate …

GPGPU-based parallel computation using discrete elements in geotechnics: A state-of-art review

YK Gujjala, HM Kim, DW Ryu - Archives of Computational Methods in …, 2023 - Springer
Large deformation near surface excavations and openings has been frequently simulated in
geotechnical problems. Mesh-based approaches for large-scale simulation have long been …

SPH-DEM coupling method based on GPU and its application to the landslide tsunami. Part I: method and validation

Q Zhou, WJ Xu, XY Dong - Acta Geotechnica, 2022 - Springer
Landslide-induced tsunami is a complex fluid–solid coupling process that plays a crucial
role in the study of a disaster chain. To simulate the coupling behaviors between the fluid …

Leveraging ray tracing cores for particle‐based simulations on GPUs

S Zhao, Z Lai, J Zhao - International Journal for Numerical …, 2023 - Wiley Online Library
Neighbor searching is an essential and computationally heavy step in particle‐based
numerical methods such as discrete element method (DEM), molecular dynamics …

[HTML][HTML] Prediction of bulk mechanical properties of PVC foam based on microscopic model: Part I-Microstructure characterization and generation algorithm

Y Zhou, B Xue, W Zhang, R Wang - Polymer Testing, 2023 - Elsevier
The mechanical properties of porous materials greatly depend on their microstructures, so
the generation of realistic microstructures is the premise for a sound numerical simulation …

[HTML][HTML] GPU-enhanced DEM analysis of flow behaviour of irregularly shaped particles in a full-scale twin screw granulator

C Zheng, N Govender, L Zhang, CY Wu - Particuology, 2022 - Elsevier
During twin screw granulation (TSG), small particles, which generally have irregular shapes,
agglomerate together to form larger granules with improved properties. However, how …

A DEM study on the thermal conduction of granular material in a rotating drum using polyhedral particles on GPUs

N Govender - Chemical Engineering Science, 2022 - Elsevier
A number of industrial applications require the control of granular material temperature
across individual grains. Particle level simulations using the DEM is thus critical for …

Multi-GPUs DEM algorithm and its application in the simulation of granular materials

Q Zhou, WJ Xu, YZ Chen - Powder Technology, 2023 - Elsevier
Abstract The Discrete Element Method (DEM) is one of the most common numerical
approach for modeling the physical and mechanical properties of granular materials …

Stabilizing role of coarse grains in cohesionless overfilled binary mixtures: A DEM investigation

T Wang, A Wautier, J Zhu, F Nicot - Computers and Geotechnics, 2023 - Elsevier
Cohesionless binary mixtures are commonly encountered in nature and frequently used as
filling materials in geotechnical engineering. It is known that coarse grains have a …