Energy-conserving contact interaction models for arbitrarily shaped discrete elements

Y.T. Feng; K. Han; D.R.J. Owen

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Energy-conserving contact interaction models for arbitrarily shaped discrete elements

机译：任意形状的离散元件的节能接触相互作用模型

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This work aims to establish a unified theoretical framework for normal contact of arbitrarily shaped discrete elements in discrete element modelling solely based on the energy-conservation principle for elastic contact. It will show that the normal force must be a potential field vector associated with a potential. With the construction of an appropriate potential function, a complete normal contact model, including the magnitude and direction of the normal force and the normal contact line, can be unambiguously derived for a pair of any shaped bodies. The model in its final form is simple and has a clear geometric perspective for 2D bodies. It can also recover some well-known models for bodies with simple geometric shapes.

机译：这项工作旨在仅基于弹性接触的能量守恒原理，为离散元件建模中的任意形状的离散元件的正常接触建立统一的理论框架。这将显示法向力必须是与电势关联的电势场矢量。通过构造适当的势函数，可以明确得出一对任意形状的物体的完整法线接触模型，包括法向力和法向接触线的大小和方向。最终形式的模型很简单，并且对于2D实体具有清晰的几何透视图。它还可以为一些具有简单几何形状的物体恢复一些众所周知的模型。

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来源
《Computer Methods in Applied Mechanics and Engineering》 |2012年第15期|p.169-177|共9页
作者
Y.T. Feng; K. Han; D.R.J. Owen;
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作者单位

Civil and Computational Engineering Centre, College of Engineering, Swansea University, SA2 8PP, UK;

rnCivil and Computational Engineering Centre, College of Engineering, Swansea University, SA2 8PP, UK;

rnCivil and Computational Engineering Centre, College of Engineering, Swansea University, SA2 8PP, UK;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
discrete element; normal contact model; energy conservation; arbitrarily shaped bodies;

机译：离散元素普通接触模型节能减排;任意形状的物体;

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Energy-conserving contact interaction models for arbitrarily shaped discrete elements

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