Plastic failure analysis by using the finite element method along with a global secant relaxation-based accelerated iteration procedure

Chang-New Chen

Research output: Contribution to journalArticlepeer-review

Abstract

A global secant relaxation (GSR)-based accelerated constant stiffness iteration scheme is used to carry out the incremental/iterative solution of non-linear finite element problems involving plastic failure. This computation procedure can overcome the possible deficiency of numerical instability caused by local failure existing in the iterative computation. Moreover, this method can efficiently accelerate the convergence rate of the iterative computation. Consequently, the incremental/iterative analysis can be consistently carried out to update the response history up to a near ultimate load stage, which is important for investigating the global failure behaviour of a structure under certain external causes. Sample problems are solved and the numerical results are presented. Certain converged finite element results are compared with what are the solutions of classical limit strength analysis.

Original languageEnglish
Pages (from-to)11-21
Number of pages11
JournalStructural Engineering Review
Volume6
Issue number1
Publication statusPublished - 1994 Feb 1

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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