The effect of weld residual stresses and their re-distribution with crack growth during fatigue under constant amplitude loading

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dc.contributor.authorLiljedahl, C. D. M.
dc.contributor.authorZanellato, O.
dc.contributor.authorFitzpatrick, M. E.
dc.contributor.authorLin, J.
dc.contributor.authorEdwards, L.
dc.date.accessioned2010-01-11T16:17:49Z
dc.date.available2010-01-11T16:17:49Z
dc.date.issued2010-04
dc.description.abstractIn this work the evolution of the residual stresses in a MIG-welded 2024-T3 aluminium alloy M(T) specimen during in situ fatigue crack growth at constant load amplitude has been measured with neutron diffraction. The plastic relaxation and plasticity-induced residual stresses associated with the fatigue loading were found to be small compared with the stresses arising due to elastic re-distribution of the initial residual stress field. The elastic re-distribution was modelled with a finite element simulation and a good correlation between the experimentally-determined and the modelled stresses was found. A significant mean stress effect on the fatigue crack growth rate was seen and this was also accurately predicted using the measured initial residual stresses.en_UK
dc.identifier.citationC.D.M. Liljedahl, O. Zanellato, M.E. Fitzpatrick, J. Lin, L. Edwards, The effect of weld residual stresses and their re-distribution with crack growth during fatigue under constant amplitude loading, International Journal of Fatigue, Volume 32, Issue 4, April 2010, Pages 735-743en_UK
dc.identifier.issn0142-1123
dc.identifier.urihttp://dx.doi.org/10.1016/j.ijfatigue.2009.10.012
dc.identifier.urihttp://hdl.handle.net/1826/4133
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.subjectNeutron diffractionen_UK
dc.subjectResidual stressesen_UK
dc.subjectFatigueen_UK
dc.subjectWeldingen_UK
dc.subjectFinite element analysisen_UK
dc.titleThe effect of weld residual stresses and their re-distribution with crack growth during fatigue under constant amplitude loadingen_UK
dc.typeArticleen_UK

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