Evaluating shakedown under proportional loading by non-linear static analysis

被引：42

作者：

Muscat, M ^{[1
]}

Mackenzie, D ^{[1
]}

Hamilton, R ^{[1
]}

机构：

[1] Univ Strathclyde, Dept Mech Engn, Glasgow G1 1XJ, Lanark, Scotland

来源：

COMPUTERS & STRUCTURES | 2003年 / 81卷 / 17期

关键词：

plasticity; cyclic loading; incremental plastic collapse; shakedown; ratchetting;

D O I：

10.1016/S0045-7949(03)00181-0

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A lower bound method for calculating shakedown loads under proportional loading by static non-linear finite element analysis is presented. Stress fields obtained by static analysis and stress superposition are substituted into Melan's lower bound shakedown theorem. The proposed method is applied to two sample problems: a thick cylinder under internal pressure and a square plate with a central hole under proportional biaxial loading. The results indicate that the method gives accurate lower bound shakedown loads for these problems. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：1727 / 1737

页数：11

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