New Discrete Element Models for Three-Dimensional Impact Problems

被引：11

作者：

Shan Li ^{[1
,2
]}

Cheng Ming ^{[1
,2
]}

Liu Kai-Xin ^{[1
,2
,3
]}

Liu Wei-Fu ^{[1
,2
]}

Chen Shi-Yang ^{[1
,2
]}

机构：

[1] Peking Univ, Coll Engn, LTCS, Beijing 100871, Peoples R China

[2] Peking Univ, Coll Engn, Dept Mech & Aerosp Engn, Beijing 100871, Peoples R China

[3] Peking Univ, Ctr Appl Phys & Technol, Beijing 100871, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2009年 / 26卷 / 12期

基金：

中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

O4 [物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Two 3-D numerical models of the discrete element method (DEM) for impact problems are proposed. The models can calculate not only the impact problems of continuum and non-continuum, but also the transient process from continuum to non-continuum. The stress wave propagation in a concrete block and a dynamic splitting process of a marble disc under impact loading are numerically simulated with the proposed models. By comparing the numerical results with the corresponding results obtained by the finite element method (FEM) and the experiments, it is proved that the models are reliable for three-dimensional impact problems.

引用

页数：4

共 8 条

[1]

DISCRETE NUMERICAL-MODEL FOR GRANULAR ASSEMBLIES [J].