In any DEM simulation, the chosen particle shape will greatly influence the simulated
material behaviour. For a specific material, eg railway ballast, it remains an open question …

Soft, disordered, micro-structured materials are ubiquitous in nature and industry, and are
different from ordinary fluids or solids, with unusual, interesting static and flow properties …

Self-organization, and transitions from reversible to irreversible behavior, of interacting
particle assemblies driven by externally imposed stresses or deformation is of interest in …

Conventional plasticity models follow rich mathematical formulations. However, they
typically lack a physical basis, so their predictive quality is strongly correlated with the …

Anisotropy of elasticity is a very important feature of granular soils. In this paper, numerical
experiments using discrete element method were performed to emulate drained triaxial tests …

The steady-state shear rheology of granular materials is investigated in slow quasistatic and
inertial flows. The effect of gravity (thus the local pressure) and the often-neglected contact …

The calibration of discrete element method (DEM) simulations is typically accomplished in a
trial-and-error manner. It generally lacks objectivity and is filled with uncertainties. To deal …

The concept of an evolving jamming density explains a multitude of mechanisms in granular
matter. Simulations of systems with friction now consolidate this notion and highlight that the …

We perform combined x-ray tomography and shear force measurements on a cyclically
sheared granular system with highly transient behaviors, and obtain the evolution of …

Elastic wave propagation provides a noninvasive way to examine polydisperse, frictional
granular materials. The discrete element method (DEM) allows for a micromechanical …