Stress relieving and its effect on life of welded tubular joints

A. M. Paradowska, J. W.H. Price, B. Kerezsi, P. Dayawansa, X. L. Zhao

Research output: Journal article publicationJournal articleAcademic researchpeer-review

23 Citations (Scopus)

Abstract

This paper describes investigations into the fabrication and repair of large welded tubular joints and how the processes used affect fatigue life. Research has been conducted to determine the benefit of local post weld heat treatment (PWHT) of the connections in terms of hardness and residual stress. The use of hole drilling and trepanning techniques for residual stresses measurements in the clusters are described. The results are compared with fitness-for-service assessments and considered in relation to the fatigue performance of the welded connections. Very substantial theoretical improvement in fatigue life can be expected after PWHT. Crown

Original languageEnglish
Pages (from-to)320-327
Number of pages8
JournalEngineering Failure Analysis
Volume17
Issue number1
DOIs
Publication statusPublished - Jan 2010
Externally publishedYes

Keywords

  • Fatigue
  • Hole drilling
  • Residual stress
  • Welding

ASJC Scopus subject areas

  • General Materials Science
  • General Engineering

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