The role of particle shape in computational modelling of granular matter
Granular matter is ubiquitous in nature and is present in diverse forms in important
engineering, industrial and natural processes. Particle-based computational modelling has …
engineering, industrial and natural processes. Particle-based computational modelling has …
Thirty years of developments in contact modelling of non-spherical particles in DEM: a selective review
YT Feng - Acta Mechanica Sinica, 2023 - Springer
The discrete element method has advanced significantly since it originated in 1979. This
paper aims to provide a selective overview of some major developments on contact …
paper aims to provide a selective overview of some major developments on contact …
A poly‐superellipsoid‐based approach on particle morphology for DEM modeling of granular media
Particle morphology plays a key role in affecting physical and mechanical behaviors of
granular media. While various mathematical approaches and shape descriptors have been …
granular media. While various mathematical approaches and shape descriptors have been …
DEM modelling of mini-triaxial test based on one-to-one mapping of sand particles
This paper presents a discrete-element method simulation of mini-triaxial tests on a sand
with realistically shaped grains. It compares the results with physical experiments at multiple …
with realistically shaped grains. It compares the results with physical experiments at multiple …
An energy-conserving contact theory for discrete element modelling of arbitrarily shaped particles: Basic framework and general contact model
YT Feng - Computer Methods in Applied Mechanics and …, 2021 - Elsevier
The first paper of this series establishes a unified theoretical framework that lays a solid
foundation for developing energy-conserving normal contact models for arbitrarily shaped …
foundation for developing energy-conserving normal contact models for arbitrarily shaped …
Fourier series-based discrete element method for computational mechanics of irregular-shaped particles
Many natural and engineered granular materials consist mainly of irregular-shaped non-
spherical particles. In this work, a novel Fourier series-based Discrete Element Method (FS …
spherical particles. In this work, a novel Fourier series-based Discrete Element Method (FS …
A unified Minkowski sum model for largely deformed granular materials with arbitrary morphologies
S Wang, L Liu, Q Xu, D Liang, S Ji - Computer Methods in Applied …, 2024 - Elsevier
Since deformable granular materials with arbitrary morphologies constructed by different
dilated non-spherical models in complex structures remain challenging for numerical …
dilated non-spherical models in complex structures remain challenging for numerical …
[HTML][HTML] Construction of irregular particles with superquadric equation in DEM
Non-spherical particles are widely present in industrial production, and significantly affect
the macro and micro characteristics of granular materials. Although the superquadric …
the macro and micro characteristics of granular materials. Although the superquadric …
Comparison of clumps and rigid blocks in three-dimensional DEM simulations: curvature-based shape characterization
Clumps and rigid blocks are two established models in the discrete element method (DEM)
for representing digitized shapes of granules. However, few studies compared their shape …
for representing digitized shapes of granules. However, few studies compared their shape …
Poly-superquadric model for DEM simulations of asymmetrically shaped particles
S Wang, S Ji - Computational Particle Mechanics, 2022 - Springer
The superquadric function is employed to represent spherical and non-spherical particles.
Although particles with different aspect ratios and surface blockiness can be described using …
Although particles with different aspect ratios and surface blockiness can be described using …