The role of plasticity theory on the predicted residual stress field of weld structures

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dc.contributor.authorMuránsky, Oen_AU
dc.contributor.authorHamelin, CJen_AU
dc.contributor.authorSmith, MCen_AU
dc.contributor.authorBendeich, PJen_AU
dc.contributor.authorEdwards, Len_AU
dc.date.accessioned2016-10-10T00:05:54Zen_AU
dc.date.available2016-10-10T00:05:54Zen_AU
dc.date.issued2014-11en_AU
dc.date.statistics2016-10-10en_AU
dc.description.abstractConstitutive plasticity theory is commonly applied to the numerical analysis of welds in one of three ways: using an isotropic hardening model, a kinematic hardening model, or a mixed isotropic-kinematic hardening model. The choice of model is not entirely dependent on its numerical accuracy, however, as a lack of empirical data will often necessitate the use of a specific approach. The present paper seeks to identify the accuracy of each formalism through direct comparison of the predicted and actual post-weld residual stress field developed in a three-pass 316LN stainless steel slot weldment. From these comparisons, it is clear that while the isotropic hardening model tends to noticeably over-predict and the kinematic hardening model slightly under-predict the residual post-weld stress field, the results using a mixed hardening model are quantitatively accurate. Even though the kinematic hardening model generally provides more accurate results when compared to an isotropic hardening formalism, the latter might be a more appealing choice to engineers requiring a conservative design regarding weld residual stress. © 2014, Trans Tech Publications.en_AU
dc.identifier.citationMuránsky, O., Hamelin, C. J., Smith, M. C., Bendeich, P. J., & Edwards, L. (2014). The role of plasticity theory on the predicted residual stress field of weld structures. Materials Science Forum, 772, 65-71 doi:10.4028/www.scientific.net/MSF.772.65en_AU
dc.identifier.govdoc7239en_AU
dc.identifier.issn1662-9752en_AU
dc.identifier.journaltitleMaterials Science Forumen_AU
dc.identifier.pagination65-71en_AU
dc.identifier.urihttp://dx.doi.org/10.4028/www.scientific.net/MSF.772.65en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/7677en_AU
dc.identifier.volume772en_AU
dc.language.isoenen_AU
dc.publisherMaterials Science Forumen_AU
dc.subjectPlasticityen_AU
dc.subjectWelded jointsen_AU
dc.subjectIsotopesen_AU
dc.subjectDataen_AU
dc.subjectParticle kinematicsen_AU
dc.subjectResidual stressesen_AU
dc.titleThe role of plasticity theory on the predicted residual stress field of weld structuresen_AU
dc.typeJournal Articleen_AU
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