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dc.contributor.authorKarampour, Hassan
dc.contributor.authorAlrsai, Mahmoud
dc.contributor.authorAlbermani, Faris
dc.contributor.authorGuan, Hong
dc.contributor.authorJeng, Dong-Sheng
dc.date.accessioned2018-03-08T05:29:21Z
dc.date.available2018-03-08T05:29:21Z
dc.date.issued2017
dc.identifier.issn0733-9399
dc.identifier.doi10.1061/(ASCE)EM.1943-7889.0001337
dc.identifier.urihttp://hdl.handle.net/10072/370479
dc.description.abstractThis study investigates propagation buckling of subsea pipe-in-pipe (PIP) systems under hydrostatic pressure. Unlike in previous studies, PIP systems consisting of carrier pipes with a diameter-to-thickness (Do/to) ratio in the range 26–40 are examined here. Experimental results from ring squash tests (RSTs), confined ring squash tests (CRSTs), and hyperbaric chamber tests are presented and compared with a modified two-dimensional (2D) analytical solution and with numerical results using three-dimensional (3D) finite-element (FE) analysis. The comparison indicates that the proposed modified analytical expression provides a more accurate lower-bound estimate of the propagation buckling pressure of PIP systems compared with the existing equations, especially for higher Do/to ratios. The novel RST and CRST protocols proposed for PIP systems give lower-bound estimates of the propagation pressure. The FE analysis outcomes demonstrate that the lengths of PIP system transition zones are almost twice the corresponding lengths in single pipes. New modes of buckling are discovered in the hyperbaric chamber tests of PIP systems with Do/to=26.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherAmerican Society of Civil Engineers
dc.relation.ispartofpagefrom04017113-1
dc.relation.ispartofpageto04017113-10
dc.relation.ispartofissue9
dc.relation.ispartofjournalJournal of Engineering Mechanics
dc.relation.ispartofvolume143
dc.subject.fieldofresearchMechanical Engineering not elsewhere classified
dc.subject.fieldofresearchCivil Engineering
dc.subject.fieldofresearchMechanical Engineering
dc.subject.fieldofresearchcode091399
dc.subject.fieldofresearchcode0905
dc.subject.fieldofresearchcode0913
dc.titlePropagation Buckling in Subsea Pipe-in-Pipe Systems
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionAccepted Manuscript (AM)
gro.facultyGriffith Sciences, School of Engineering and Built Environment
gro.rights.copyright© 2017 American Society of Civil Engineers (ASCE). This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorJeng, Dong-Sheng
gro.griffith.authorGuan, Hong
gro.griffith.authorKarampour, Hassan
gro.griffith.authorAlrsai, Mahmoud S.


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