Analysis and optimization of weakly coupled thermoelastoplastic systems with applications to weldment design

Panagiotis Michaleris, Daniel A. Tortorelli, Creto A. Vidal

Research output: Contribution to journalArticlepeer-review

Abstract

A systematic approach for the design of weakly coupled thermoelastoplastic systems is presented. The Newton–Raphson iteration method is used in the solution process so that analytic design sensitivity formulations may be efficiently derived via the direct differentiation technique. The derived formulations are suitable for finite element implementations. Analysis and sensitivity analysis capabilities are combined with numerical optimization to form an optimum design algorithm. To demonstrate the algorithm, we optimally design a weldment with respect to manufacturing and service life aspects.

Original languageEnglish (US)
Pages (from-to)1259-1285
Number of pages27
JournalInternational Journal for Numerical Methods in Engineering
Volume38
Issue number8
DOIs
StatePublished - Apr 30 1995

Keywords

  • optimization, FEM
  • sensitivity analysis
  • thermoelastoplasticity
  • welding

ASJC Scopus subject areas

  • Numerical Analysis
  • Engineering(all)
  • Applied Mathematics

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