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A SOLUTION PROCEDURE FOR LOWER BOUND LIMIT AND SHAKEDOWN ANALYSIS BY SGBEM 被引量：2

A SOLUTION PROCEDURE FOR LOWER BOUND LIMIT AND SHAKEDOWN ANALYSIS BY SGBEM
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摘要 The symmetric Galerkin boundary element method (SGBEM) instead ofthe finite element method is used t perform lower bound limit andshakedown analysis of structures. The self-equilibrium stress fieldsare constructed by a linear combination of several basicself-equilibrium stress fields with parameters to be determined.These basic self-equilibrium stress fields are expressed as elasticresponses of the body to im- posed permanent strains and obtainedthrough elastic-plastic incremental analysis. The symmetric Galerkin boundary element method (SGBEM) instead ofthe finite element method is used t perform lower bound limit andshakedown analysis of structures. The self-equilibrium stress fieldsare constructed by a linear combination of several basicself-equilibrium stress fields with parameters to be determined.These basic self-equilibrium stress fields are expressed as elasticresponses of the body to im- posed permanent strains and obtainedthrough elastic-plastic incremental analysis.
作者 Zhang Xiaofeng Liu Yinghua Cen Zhangzhi (Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China)
出处 《Acta Mechanica Solida Sinica》 SCIE EI 2001年第2期118-129,共12页 固体力学学报（英文版）
基金 the National Natural Science Foundation of China(No.19902007) the National Foundation for Excellent Doctorial Dissertation of China(No.200025) the Basic Research Foundation of Tsinghua University
关键词 limit and shakedown analysis SGBEM self-equilibrium stress limit and shakedown analysis SGBEM self-equilibrium stress
分类号 O344.1 [理学—固体力学]
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参考文献12

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同被引文献12

  • 1破坏力学教育部重点实验室研究工作进展[J].力学进展,2005,35(2):288-298. 被引量：1
  • 2岑章志 王勖成 杜庆华.采用有限元-边界元耦合方法计算弹塑性应力[J].北京:清华大学学报,1988,28(2):34-43.
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  • 9E Stein, G Zhang. Shakedown with nonlinear strain-hardening including structural computation using finite element method [J]. Int. J. of Plasticity 1992, 8: 1-31.
  • 10Johannes Grob-Weege. On the numerical assessment of the safety factor of elastic-plastic structures under variable loading [J]. Int. J. Mech. Sci., 1997, 39(4): 417-433.

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Acta Mechanica Solida Sinica
2001年 第2期

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