A MATERIAL BASED FINITE-ELEMENT ANALYSIS OF HETEROGENEOUS MEDIA INVOLVING DIRICHLET TESSELLATIONS

被引：113

作者：

GHOSH, S ^{[1
]}

MUKHOPADHYAY, SN ^{[1
]}

机构：

[1] UNIV ALABAMA,DEPT ENGN MECH,TUSCALOOSA,AL 35487

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 1993年 / 104卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0045-7825(93)90198-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, a new finite element formulation has been developed for analysis of heterogeneous media, in which the second phase is randomly dispersed within the matrix. It introduces a tessellation based mesh generation technique to account for the arbitrariness in location, shape and size of the second phase. An assumed stress hybrid formulation has been implemented to utilize the resulting Voronoi polygons as elements in a finite element model. The effect of the second phase has been accounted for by introducing a transformation strain based constitutive formulation. Numerical examples have been conducted to validate the model.

引用

页码：211 / 247

页数：37

共 24 条

[1] A METHOD FOR MODELING MICROSTRUCTURAL MATERIAL DISCONTINUITIES IN A FINITE-ELEMENT ANALYSIS [J].