Granular matter describes large collections of small grains, under conditions in which the
Brownian motion of the grains is negligible (sizes d> 1 micrometer). The grains can exhibit …

Granular materials, like sand, powder or grains present intriguing phenomena. Vibration and
shearing can lead to convective motion and segregation. A variation of stress may cause …

The behaviour of dense assemblies of dry grains submitted to continuous shear deformation
has been the subject of many experiments and discrete particle simulations. This paper is a …

We study the plane shear flow of a dense assembly of dissipative disks using discrete
simulation and prescribing the pressure and the shear rate. Those shear states are steady …

Granular materials display a variety of behaviors that are in many ways different from those
of other substances. They cannot be easily classified as either solids or liquids. This has …

We have performed a systematic, large-scale simulation study of granular media in two and
three dimensions, investigating the rheology of cohesionless granular particles in inclined …

We propose a model for collisions between particles of a granular material and calculate the
restitution coefficients for the normal and tangential motion as functions of the impact velocity …

The contact between spheres results in a rolling resistance due to elastic hysteresis losses
or viscous dissipation. This resistance is shown to be important in the three-dimensional …

In computer simulations of granular flow, one widely used technique is classical soft-sphere
Molecular Dynamics, where the equations of motion of the particles are numerically …

A model for granular materials is presented that describes both the internal deformation of
each granule and the interactions between grains. The model, which is based on the FLIP …