The need to understand and predict the long-and short term behavior of railway ballast calls
for extensive experimental programs as well as the development of reliable numerical …

The importance of particle rotation to the mechanical behavior of granular materials subject
to quasi-static shearing has been well recognized in the literature. Although the physical …

Existing DEM researches related to particle breakage usually assume that particles are
regular shapes and debris is spherical. In this paper, a method combining relatively realistic …

颗粒材料在自然界和工程领域普遍存在, 外载荷作用下颗粒可能发生破碎现象.
颗粒材料的破碎行为会引起其物理力学性质的变化, 给工程和建筑建设带来极大影响. 研究宏 …

Breakage of particles plays a key role in force transmission in granular materials. Discrete
element method (DEM) simulations are often used to model granular materials, but …

One of the effective parameters of the behavior of rockfill materials is particle breakage. As a
result of particle breakage, both the stress–strain and deformability of materials change …

Abstract A combined DEM-XFEM novel approach is used to simulate the direct shear test on
assemblies of breakable two-dimensional angular particles in order to study the macro-and …

A novel discrete fragmentation method (DFM) for spherical brittle particles using the discrete
element method (DEM) has been developed, implemented and validated. Trajectories of …

Recent researches have proved that the shape of particles has significant effect on the
mechanical behavior of granular materials. Therefore to model the appropriate behavior of …

Particle breakage in two-dimensional angular rockfill material is simulated using a combined
DEM and XFEM approach. In this approach, the interaction of particles is simulated by DEM …