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dc.contributor.authorMaligno, Angeloen
dc.contributor.authorCitarella, Robertoen
dc.contributor.authorSilberschmidt, Vadim V.en
dc.contributor.authorSoutis, Constantinosen
dc.date.accessioned2017-04-19T15:31:27Z
dc.date.available2017-04-19T15:31:27Z
dc.date.issued2015-01
dc.identifier.citationMaligno, A. et al (2015) 'Assessment of structural integrity of subsea wellhead system: analytical and numerical study', Fracture and Structural Integrity, Vol. 31, pp. 97-119. DOI: 10.3221/IGF-ESIS.31.08en
dc.identifier.issn19718993
dc.identifier.doi10.3221/IGF-ESIS.31.08
dc.identifier.urihttp://hdl.handle.net/10545/621557
dc.description.abstractSubsea wellhead systems exposed to severe fatigue loading are becoming increasingly a significant problem in offshore drilling operations due to their applications in wells with higher levels of pressure and temperature, situated at larger depths and in harsher environments. This has led to a substantial increase in the weight and size of offshore equipment, which, in combination with different loading conditions related to the environmental factors acting on the vessel and riser, has greatly increased the loads acting on subsea well systems. In particular, severe fatigue loading acting on the subsea wellhead system was detected. For this reason, a combined analytical and numerical study investigating the critical effect of crack depth on the overall structural integrity of subsea wellhead systems under cyclic loading was carried out. The study is based on a Linear Elastic Fracture Mechanics (LEFM) approach.
dc.description.sponsorshipN/Aen
dc.language.isoenen
dc.publisherItalian Group of Fractureen
dc.relation.urlhttp://www.fracturae.com/index.php/fis/article/view/IGF-ESIS.31.08en
dc.relation.urlhttps://dspace.lboro.ac.uk/2134/17467en
dc.subjectFatigue crack propagationen
dc.subjectZencracken
dc.subjectDefect assessmenten
dc.subjectGirth wieldsen
dc.subjectSteel pipelinesen
dc.titleAssessment of structural integrity of subsea wellhead system: analytical and numerical studyen
dc.typeArticleen
dc.contributor.departmentUniversity of Derbyen
dc.contributor.departmentUniversity of Salernoen
dc.contributor.departmentLoughborough Universityen
dc.contributor.departmentUniversity of Manchesteren
dc.identifier.journalFracture and Structural Integrityen
html.description.abstractSubsea wellhead systems exposed to severe fatigue loading are becoming increasingly a significant problem in offshore drilling operations due to their applications in wells with higher levels of pressure and temperature, situated at larger depths and in harsher environments. This has led to a substantial increase in the weight and size of offshore equipment, which, in combination with different loading conditions related to the environmental factors acting on the vessel and riser, has greatly increased the loads acting on subsea well systems. In particular, severe fatigue loading acting on the subsea wellhead system was detected. For this reason, a combined analytical and numerical study investigating the critical effect of crack depth on the overall structural integrity of subsea wellhead systems under cyclic loading was carried out. The study is based on a Linear Elastic Fracture Mechanics (LEFM) approach.


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