Three-dimensional discontinuous deformation analysis (3-D DDA) using a new contact resolution algorithm

被引：69

作者：

Beyabanaki, S. Amir Reza ^{[1
]}

Mikola, Roozbeh Geraili ^{[2
]}

Hatami, Kianoosh ^{[2
]}

机构：

[1] Haraz Rah Consulting Engn Grp, Tehran, Iran

[2] Univ Oklahoma, CEES, Norman, OK 73019 USA

来源：

COMPUTERS AND GEOTECHNICS | 2008年 / 35卷 / 03期

关键词：

three-dimensional contacts; three-dimensional discontinuous deformation analysis; numerical methods; contact resolution algorithm;

D O I：

10.1016/j.compgeo.2007.08.006

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This paper presents a new contact calculating algorithm for contacts between two polyhedra with planar boundaries in the three-dimensional discontinuous deformation analysis (3-D DDA). In this algorithm, all six type contacts in 3-D (vertex-to-face, vertex-to-edge, vertex-to-vertex, face-to-face, edge-to-edge, and edge-to-face) are simply transformed into the form of point-to-face contacts. The presented algorithm is a simple and efficient method and it can be easily coded into a computer program. In this paper, formulations of normal contact, shear contact and frictional force submatrices based on the new method are derived and the algorithm has been programmed in VC++. Examples are provided to demonstrate the new contact rule between two blocks. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：346 / 356

页数：11

共 22 条

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