Use of static stress for modification of welding residual stress

A.S.M.Y. Munsi, A.J. Waddell, C.A. Walker

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Previous studies have suggested that the application of stress during weld cooling could change the microstructure and residual stress state of a weld. Flat bar specimens were welded in a prestressed condition of tensile or compressive stress. The longitudinal residual stresses were found to decrease with application of tensile pre-induced stresses and to increase with application of compressive pre-induced stresses. Away from the weld toe the transverse residual stresses were found to decrease and near the weld toe the residual stresses were found to increase with application of tensile pre-induced stresses. With application of compressive pre-induced stresses the transverse residual stresses were found to increase. The present study suggests that the prestressing method should not be used as a residual stress relieving mechanism.
Original languageEnglish
Pages (from-to)51-55
Number of pages4
JournalScience and Technology of Welding and Joining
Volume7
Issue number1
DOIs
Publication statusPublished - Jun 2002

Keywords

  • residual stress
  • welding
  • tensile stress
  • compressive stress
  • mechanical engineering

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