Effect of ultrasonic peening on residual stresses at a T-butt weld toe

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dc.contributor.authorHellier, AKen_AU
dc.contributor.authorPrusty, BGen_AU
dc.contributor.authorPearce, GMen_AU
dc.contributor.authorReid, Men_AU
dc.contributor.authorParadowska, AMen_AU
dc.contributor.authorSimons, Pen_AU
dc.date.accessioned2021-01-08T00:11:10Zen_AU
dc.date.available2021-01-08T00:11:10Zen_AU
dc.date.issued2016-07-03en_AU
dc.date.statistics2021-01-05en_AU
dc.description.abstractThe current paper presents the results of neutron diffraction measurements of the throughthickness residual stress field at the toe of a T-butt weld, made from 10mm thick A350 grade black mild steel plates, after successful ultrasonic peening. A single ultrasonic peening treatment was carried out at the weld toe. Residual stresses were measured using the KOWARI instrument at ANSTO. The neutron diffraction technique was chosen for this study because of its ability to measure three-dimensional residual stress deep within the component at high resolutions. Although the nominal yield stress of the A350 grade plate is 350 MPa the actual yield stress is generally higher, in this case averaging out to about 400 MPa. Ultrasonic peening was highly effective, leading to a residual stress redistribution with a maximum compressive stress of about 250 MPa at the weld toe surface and a maximum tensile stress of 220 MPa, at a depth of almost 3mm into the base plate. The resulting compressive residual stresses at the weld toe surface will almost certainly increase substantially both the fatigue initiation and propagation lives, or may prevent fatigue completely. Since A350 steel is widely used in buildings, bridges and offshore structures, ultrasonic peening shows great promise as an in-situ peening method in order to improve weld fatigue performance. © The Authorsen_AU
dc.identifier.booktitleResidual stresses ICRS-10. Millersville, USA: Materials Research Forum LLCen_AU
dc.identifier.citationHellier, A. K., Prusty, B. G., Pearce, G. M., Reid, M., Paradowska, A. M., & Simons, P. (2016). Effect of ultrasonic peening on residual stresses at a T-butt weld toe. Poster presented to the 10th International Conference on Residual Stresses (ICRS 10), Sydney, Australia, 3-7 July, 2016. In T. M. Holden, T. M., O. Muránsky, & L. Edwards (Eds) (2017). Residual stresses ICRS-10. Millersville, USA: Materials Research Proceedings, Vol. 2, 19-24. doi:10.21741/9781945291173-4en_AU
dc.identifier.conferenceenddate7 July 2016en_AU
dc.identifier.conferencename10th International Conference on Residual Stresses (ICRS 10)en_AU
dc.identifier.conferenceplaceSydney, Australiaen_AU
dc.identifier.conferencestartdate3 July 2016en_AU
dc.identifier.editorsT. M. Holden, T. M., O. Muránsky, & L. Edwardsen_AU
dc.identifier.isbn978-1-94529117-3en_AU
dc.identifier.pagination19-24en_AU
dc.identifier.placeofpublicationMillersville, USAen_AU
dc.identifier.urihttp://dx.doi.org/10.21741/9781945291173-4en_AU
dc.identifier.urihttps://www.mrforum.com/product/residual-stresses-2016/en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/10210en_AU
dc.identifier.volume2en_AU
dc.language.isoenen_AU
dc.publisherMaterials Research Forum LLCen_AU
dc.subjectResidual stressesen_AU
dc.subjectStressesen_AU
dc.subjectWeldingen_AU
dc.subjectSteelsen_AU
dc.subjectANSTOen_AU
dc.subjectFatigueen_AU
dc.subjectBuildingsen_AU
dc.subjectBridgesen_AU
dc.titleEffect of ultrasonic peening on residual stresses at a T-butt weld toeen_AU
dc.typeConference Paperen_AU
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