Open Access

ARTICLE

Elasto-plastic Analysis of Two-dimensional Orthotropic Bodies with the Boundary Element Method

X.S. Sun¹, L.X. Huang¹, Y.H. Liu¹, Z.Z. Cen^1,2

1 (Dept. of Engineering Mechanics, Tsinghua University, Beijing100084, P. R. China)
2 Corresponding author.
Tel: +86-10-62784015; fax: +86-10-62770349
Email address: demczz@tsinghua.edu.cn (Z.Z. Cen)

Computers, Materials & Continua 2004, 1(1), 91-106. https://doi.org/10.3970/cmc.2004.001.091

Abstract

The Boundary Element Method (BEM) is introduced to analyze the elasto-plastic problems of 2-D orthotropic bodies. With the help of known boundary integral equations and fundamental solutions, a numerical scheme for elasto-plastic analysis of 2-D orthotropic problems with the BEM is developed. The Hill orthotropic yield criterion is adopted in the plastic analysis. The initial stress method and tangent predictor-radial return algorithm are used to determine the stress state in solving the nonlinear equation with the incremental iteration method. Finally, numerical examples show that the BEM is effective and reliable in analyzing elasto-plastic problems of orthotropic bodies.

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Keywords

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