Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/20031
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dc.contributor.authorLiu, X-
dc.contributor.authorZhang, YH-
dc.contributor.authorWang, B-
dc.date.accessioned2020-01-17T11:04:26Z-
dc.date.available2020-01-17T11:04:26Z-
dc.date.issued2019-11-15-
dc.identifierPVP2019-93073-
dc.identifierV003T03A043-
dc.identifierORCiD: Bin Wang https://orcid.org/0000-0002-1398-6599-
dc.identifier.citationLiu, X., Zhang, Y.H. and Wang, B. (2019) 'Fatigue performance of welded joints under variable amplitude loading spectra', Proceedings of ASME 2019 Pressure Vessels & Piping Conference, San Antonio, Texas, USA, 14-19 July, volune 3, paper no: PVP2019-93073, V003T03A04, pp. 1 - 10. doi: 10.1115/PVP2019-93073.en_US
dc.identifier.isbn978-0-7918-5894-3-
dc.identifier.issn0277-027X-
dc.identifier.urihttps://bura.brunel.ac.uk/handle/2438/20031-
dc.description.abstractOffshore pipelines are generally subjected to variable amplitude (VA) loading in service due to waves or ocean currents. Welded joints often represent the most critical locations for fatigue cracking. Use of the current fatigue design guidance, for example, BS 7608, to assess fatigue performance of the welded joints in such structure may lead to inaccurate estimates depending on the nature of the VA loading spectrum. Further studies on the effect of VA loading spectra on fatigue performance of welded joints are needed. In this research, both uniaxial and 3-point bending fatigue tests were performed on non-load carrying fillet welded plates under VA loading spectra to investigate the effects of mean stress and the type of VA loading spectra. The influence of plate thickness was also investigated. Test results suggest that the spectrum with a high constant maximum tensile stress (cycling-down) could significantly degrade fatigue performance of welded joints, with the damage parameter D only at around 0.5. The severity of this type of loading spectrum depends on the mean stress level and the plate thickness. An analytical model has been developed to predict fatigue crack propagation (FCP) by considering the interaction of stresses in the loading spectrum. The model considers the impact of the mean stress generated by the preceding load on FCP in the subsequent cycles. FCP predicted by the model shows a good agreement with the experimental data.-
dc.description.sponsorshipTWI NSIRC Studentship (NSIRC TWI Studentship (Study of strain based low cycle thermal fatigue) and Brunel University London.-
dc.format.extent1 - 10-
dc.format.mediumPrint-Electronic-
dc.language.isoenen_US
dc.publisherAmerican Society of Mechanical Engineersen_US
dc.rightsCopyright © 2018 by ASME. This is the author accepted manuscript It may be downloaded for personal use only. Any other use requires prior permission of the American Society of Mechanical Engineers (see: https://www.asme.org/publications-submissions/journals/information-for-authors/journal-guidelines/rights-and-permissions). The published version, Liu, X., Zhang, Y.H. and Wang, B. (2019) 'Fatigue performance of welded joints under variable amplitude loading spectra', Proceedings of ASME 2019 Pressure Vessels & Piping Conference, San Antonio, Texas, USA, 14-19 July, volune 3, paper no: PVP2019-93073, V003T03A04, pp. 1 - 10, may be accessed at DOI URL: https://doi.org/10.1115/PVP2019-93073 .-
dc.rights.urihttps://www.asme.org/publications-submissions/journals/information-for-authors/journal-guidelines/rights-and-permissions-
dc.subjectfatigue,en_US
dc.subjectwelded Joints,en_US
dc.subjectvariable Amplitude,en_US
dc.subjectcrack propagation.en_US
dc.subjectcycling-down spectrum,en_US
dc.titleFatigue performance of welded joints under variable amplitude loading spectraen_US
dc.typeConference paperen_US
dc.identifier.doihttps://doi.org/10.1115/PVP2019-93073-
dc.relation.isPartOfAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP-
pubs.publication-statusPublished-
pubs.volume3-
dc.rights.holderASME-
Appears in Collections:Dept of Mechanical and Aerospace Engineering Research Papers

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FullText.pdfCopyright © 2018 by ASME. This is the author accepted manuscript It may be downloaded for personal use only. Any other use requires prior permission of the American Society of Mechanical Engineers (see: https://www.asme.org/publications-submissions/journals/information-for-authors/journal-guidelines/rights-and-permissions). The published version, Liu, X., Zhang, Y.H. and Wang, B. (2019) 'Fatigue performance of welded joints under variable amplitude loading spectra', Proceedings of ASME 2019 Pressure Vessels & Piping Conference, San Antonio, Texas, USA, 14-19 July, volune 3, paper no: PVP2019-93073, V003T03A04, pp. 1 - 10, may be accessed at DOI URL: https://doi.org/10.1115/PVP2019-93073 .1.11 MBAdobe PDFView/Open


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