Effect of residual stress on the integrity of a branch connection

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dc.contributor.authorLaw, Men_AU
dc.contributor.authorKirstein, Oen_AU
dc.contributor.authorLuzin, Ven_AU
dc.date.accessioned2014-03-31T04:15:35Zen_AU
dc.date.available2014-03-31T04:15:35Zen_AU
dc.date.issued2012-08-01en_AU
dc.date.statistics2014-03-31en_AU
dc.description.abstractA new connection to an existing gas pipeline was made by hot-tapping, welding directly onto a pressurised pipeline. The welds were not post-weld heat treated, causing significant residual stresses. The critical weld had residual stresses determined by neutron diffraction using ANSTO's residual stress diffractometer, Kowari. The maximum measured residual stress (290 MPa) was 60% of the yield strength. The magnitudes of errors from a number of sources were estimated. An integrity assessment of the welded branch connection was performed with the measured residual stress values and with residual stress distributions from the BS 7910 and API 579 analysis codes. Analysis using estimates of residual stress from API 579 overestimated the critical crack size. © 2012, Elsevier Ltd.en_AU
dc.identifier.citationLaw, M., Kirstein, O., & Luzin, V. (2012). Effect of residual stress on the integrity of a branch connection. International Journal of Pressure Vessels and Piping, 96-97, 24-29. doi:10.1016/j.ijpvp.2012.05.008en_AU
dc.identifier.govdoc4619en_AU
dc.identifier.issn0308-0161en_AU
dc.identifier.journaltitleInternational Journal of Pressure Vessels and Pipingen_AU
dc.identifier.pagination24-29en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.ijpvp.2012.05.008en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5359en_AU
dc.identifier.volume96-97en_AU
dc.language.isoenen_AU
dc.publisherElsevier Science Ltden_AU
dc.subjectWeldingen_AU
dc.subjectResidual stressesen_AU
dc.subjectPipelinesen_AU
dc.subjectDiffractometersen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectNeutronsen_AU
dc.titleEffect of residual stress on the integrity of a branch connectionen_AU
dc.typeJournal Articleen_AU
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