Potential particles for the modelling of interlocking media in three dimensions

被引：29
作者：
Harkness, J. [1 ]
机构：
[1] Univ Southampton, Sch Civil Engn & Environm, Southampton SO17 1BJ, Hants, England
来源：
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING | 2009年 / 80卷 / 12期
基金：
英国工程与自然科学研究理事会;
关键词：
potential particles; interlocking media; soil mechanics; DEM; TRIAXIAL TESTS;
D O I：
10.1002/nme.2669
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A method is presented for the model creation and dynamic analysis of three-dimensional interlocking media, such as locked sands or dry stone walls, in DEM simulations. A new form of discrete element is developed for this purpose, based oil the concept of potential particles. A potential function is proposed for the modelling of spheres truncated by flats, and the mechanics of contacting particles is examined in some detail. In addition, Suggestions are made to improve the convergence of the solver and accuracy of the solution for the contact point. Finally, some examples are presented, including a simulation of interlocked particles in a periodic shearbox. Copyright (C) 2009 John Wiley & Sons, Ltd.
引用
收藏
页码：1573 / 1594
页数：22
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