Shape optimization of elasto-plastic structures with shakedown constraints

authored by

Karin Wiechmann, E. Stein, Peter Wriggers

Abstract

An integrated approach for all necessary variations within direct analysis, variational design sensitivity analysis and shakedown analysis based on Melan's static shakedown theorem for linear unlimited kinematic hardening material behavior is formulated. Remarks on the computer implementation and numerical examples show the efficiency of the proposed formulation. Important effects of shakedown conditions in shape optimization with elasto-plastic deformations are highlighted in a comparison with elastic and elasto-plastic material behavior and the necessity of applying shakedown conditions when optimizing structures with elasto-plastic deformations is concluded.

Organisation(s)

Institute of Mechanics and Computational Mechanics

Type

Conference contribution

Pages

910-913

No. of pages

4

Publication date

01.12.2005

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Computational Theory and Mathematics, Theoretical Computer Science

 

Details in the research portal "Research@Leibniz University"