An algorithm for detecting inter-ellipsoid contacts

被引：73

作者：

Ouadfel, H ^{[1
]}

Rothenburg, L ^{[1
]}

机构：

[1] Univ Waterloo, Dept Civil Engn, Waterloo, ON N2L 3G1, Canada

来源：

COMPUTERS AND GEOTECHNICS | 1999年 / 24卷 / 04期

关键词：

contact detection algorithm; DEM; ellipsoid and particles; micromechanics; simulations;

D O I：

10.1016/S0266-352X(99)00013-0

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 [计算机应用技术]; 0835 [软件工程];

摘要：

An inter-ellipsoid contact detection algorithm was developed and used for simulating the behaviour of assemblies of ellipsoid-shaped particles using the well-known discrete element method (DEM). The contact algorithm was implemented in the modified version of the DEM program TRUBAL originally written to simulate the behaviour of assemblies of spheres. The modified program was used to perform deviatoric and axisymmetric compression tests on a 1000 prolate spheroid assembly in periodic space. The obtained stress-strain-dilation curves conform with the experimental evidence both qualitatively and quantitatively. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：245 / 263

页数：19