Numerical and experimental analysis of the residual stresses in welding processes

C. E. Majorana, G. Navarro, B. A. Schrefler

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

A numerical procedure is presented for the time-transient analysis of the thermo-mechanical phenomena occurring during steel welding processes and of the residual stresses. At each time step the temperature field is calculated taking into account temperature-dependent thermal properties; then for subintervals of each time step elastoplastic analyses are carried out considering again temperature-dependent mechanical properties. The thermal load is simulated using a procedure based on Gaussian heat source surfaces. The time integration of the nonlinear equation of heat transport is carried out using a three-level scheme, with variable step sizes. A numerical example of practical interest is shown, for which experimental data are available.

Original languageEnglish (US)
Pages (from-to)96-104
Number of pages9
JournalInternational Journal of Computer Applications in Technology
Volume1
Issue number1-2
StatePublished - Dec 1 1988

ASJC Scopus subject areas

  • Software
  • Information Systems
  • Computer Science Applications
  • Computer Networks and Communications
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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