Residual Stress Prediction and Relaxation in Welded Tubular Joint
2007 (English)In: Welding in the World, ISSN 0043-2288, Vol. 51, no 1/2, 23-30 p.Article in journal (Refereed) Published
In this paper a three-dimensional welding simulation was carried out in the FE software ANSYS in order to predicttransient temperatures and the residual stresses in a three-pass welded tubular joint structure. The thermal analysisand the moving heat source were verified with temperature measurements, and the computed residual stresseswere verified with hole drilling measurements. The calculated and measured temperatures were in good agreement,and the computed residual stresses were in qualitatively good agreement with the experimental results. Residual stressrelaxation analyses were carried out with similar load as in earlier fatigue testing on the same tubular joint structure.The FE residual stress relaxation analysis showed a small amount of relaxation early in the fatigue life.
Place, publisher, year, edition, pages
2007. Vol. 51, no 1/2, 23-30 p.
Computation; Fatigue life; Finite element analysis; Measurement; Prediction; Reference lists; Residual stresses; Simulating; Stress distribution; Stress relaxation; Tubular constructions
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-8173ScopusID: 2-s2.0-34247234147OAI: oai:DiVA.org:kth-8173DiVA: diva2:13425
QC 201007022008-04-032008-04-032010-11-09Bibliographically approved