The discrete element method (DEM) is widely used to model a range of processes across
many industries. This paper reviews current DEM models for several common …

岩土类颗粒物质在自然界, 工程建设以及日常生活中普遍存在, 其运动特性的研究在力学界已经
开展了几十年. 在近20 年开展的一系列小尺寸物理实验中, 颗粒物质表现出许多新奇现象 …

The contacts between cohesive, frictional particles with sizes in the range 0.1–10 μm are the
subject of this study. Discrete element model (DEM) simulations rely on realistic contact …

The discrete element method has been used to model railway ballast. Particles have been
modelled using both spheres and clumps of spheres. A simple procedure has been …

Two different methods for the modelling of real particle shape in 3D DEM simulations are
assessed in this paper. The first method uses overlapping spheres (clumps), while the …

The discrete element method has been used to simulate the behaviour of railway ballast
under different test conditions. Single particle crushing tests have been simulated using …

Ballast materials forming part of railway structures are subjected to cyclic loads. As a result
of these loads, ballast densification, aggregate degradation, and lateral spread of the ballast …

Accurate prediction of the discharge rate from hoppers is important in many industrial
processes involving the handling of granular materials. The present work investigates the …

In this work, the discrete element method (DEM) is used to assess powder flow from hoppers
and the results are compared to widely-used hopper design charts. These design charts …

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 …