Understanding and modelling the dynamic behaviour of particulate systems has been a
major research focus worldwide for many years. Discrete particle simulation plays an …

The formation of cracks and emergence of shearing planes and other modes of rapid
macroscopic failure in geologic granular media involve numerous grain scale mechanical …

We have studied how two-and three-dimensional systems made up of particles interacting
with finite range, repulsive potentials jam (ie, develop a yield stress in a disordered state) at …

We conduct numerical simulations of random packings of frictionless particles at T= 0. The
packing fraction where the pressure becomes nonzero is the same as the jamming …

Most studies on granular physics have focused on dry granular media, with no liquids
between the grains. However, in geology and many real world applications (eg food …

We study the approach to jamming in hard-sphere packings and, in particular, the pair
correlation function g 2 (r) around contact, both theoretically and computationally. Our …

Glasses are rigid, but flow when the temperature is increased. Similarly, granular materials
are rigid, but become unjammed and flow if sufficient shear stress is applied. The rigid and …

Cohesive powders have widely different bulk behavior due to their peculiar interactions. We
use discrete element simulations to investigate the effect of contact cohesion on the steady …

This is the first paper of a series of three, in which we report on numerical simulation studies
of geometric and mechanical properties of static assemblies of spherical beads under an …

颗粒物质是由众多离散颗粒组成的软凝聚态物质, 涉及多个物理层次结构和机制, 是多尺度问题.
首先阐述了颗粒物质多尺度力学的研究框架, 指出颗粒间接触力链构成的细观尺度是核心 …