A clustered overlapping sphere algorithm to represent real particles in discrete element modelling

被引：136

作者：

Garcia, X. ^{[1
]}

Latham, J-P. ^{[1
]}

Xiang, J. ^{[1
]}

Harrison, J. P. ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Earth Sci & Engn, London, England

来源：

GEOTECHNIQUE | 2009年 / 59卷 / 09期

基金：

英国工程与自然科学研究理事会;

关键词：

numerical modelling;

D O I：

10.1680/geot.8.T.037

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

An algorithm is presented for representing irregular particles as clusters of overlapping spheres, for use within discrete element method (DEM) simulations of particulates. The algorithm is sufficiently fast to be implemented on desktop computers. Although volume and moment of inertia comparisons of resulting clusters with prototypical geometric data show that in the region of 50 to 100 spheres may be needed to represent a particle, actual DEM simulations of an unstable pile of simulated particles show that only 10 or so spheres may be sufficient to capture the mechanics of the system.

引用

页码：779 / 784

页数：6

共 21 条

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