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Article: Experimental and finite element investigation of a local dent on a pressurized pipe

TitleExperimental and finite element investigation of a local dent on a pressurized pipe
Authors
Issue Date1992
PublisherProfessional Engineering Publishing Ltd. The Journal's web site is located at http://journals.pepublishing.com/link.asp?id=119785
Citation
Journal Of Strain Analysis For Engineering Design, 1992, v. 27 n. 3, p. 177-185 How to Cite?
AbstractThe problem of a local dent on a pressurized pipe is studied in this paper. Two case problems of dent are considered - a plain local dent (a smooth local dent without a surface defect), and a local dent associated with a loss of thickness defect. The strain gauging test and the finite element analysis on the plain local dent showed that the strain distributions in the local dent are different from those of a long and continuous dent. The maximum hoop strain in the local dent is located at the flank of the dent, along the dent axial axis, whereas in the case of the long dent, it is located at the root of the dent. In addition, the peak stress in the local dent is generally lower than that in the long dent. To estimate the stress concentration in the local dent using the analysis for the long dent would be grossly overestimated. The burst pipe tests on 17 dented pipes showed that the pipe failures were generally insensitive to the existence of the local dents. The pipe failures were found to be due to the loss-of-thickness defect. The comparison of results between the burst pipe tests and the plastic collapse formula shows reasonably good agreement.
Persistent Identifierhttp://hdl.handle.net/10722/156372
ISSN
2015 Impact Factor: 1.25
2015 SCImago Journal Rankings: 0.575

 

DC FieldValueLanguage
dc.contributor.authorOng, LSen_US
dc.contributor.authorSoh, AKen_US
dc.contributor.authorOng, JHen_US
dc.date.accessioned2012-08-08T08:42:11Z-
dc.date.available2012-08-08T08:42:11Z-
dc.date.issued1992en_US
dc.identifier.citationJournal Of Strain Analysis For Engineering Design, 1992, v. 27 n. 3, p. 177-185en_US
dc.identifier.issn0309-3247en_US
dc.identifier.urihttp://hdl.handle.net/10722/156372-
dc.description.abstractThe problem of a local dent on a pressurized pipe is studied in this paper. Two case problems of dent are considered - a plain local dent (a smooth local dent without a surface defect), and a local dent associated with a loss of thickness defect. The strain gauging test and the finite element analysis on the plain local dent showed that the strain distributions in the local dent are different from those of a long and continuous dent. The maximum hoop strain in the local dent is located at the flank of the dent, along the dent axial axis, whereas in the case of the long dent, it is located at the root of the dent. In addition, the peak stress in the local dent is generally lower than that in the long dent. To estimate the stress concentration in the local dent using the analysis for the long dent would be grossly overestimated. The burst pipe tests on 17 dented pipes showed that the pipe failures were generally insensitive to the existence of the local dents. The pipe failures were found to be due to the loss-of-thickness defect. The comparison of results between the burst pipe tests and the plastic collapse formula shows reasonably good agreement.en_US
dc.languageengen_US
dc.publisherProfessional Engineering Publishing Ltd. The Journal's web site is located at http://journals.pepublishing.com/link.asp?id=119785en_US
dc.relation.ispartofJournal of Strain Analysis for Engineering Designen_US
dc.titleExperimental and finite element investigation of a local dent on a pressurized pipeen_US
dc.typeArticleen_US
dc.identifier.emailSoh, AK:aksoh@hkucc.hku.hken_US
dc.identifier.authoritySoh, AK=rp00170en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0026888830en_US
dc.identifier.volume27en_US
dc.identifier.issue3en_US
dc.identifier.spage177en_US
dc.identifier.epage185en_US
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridOng, LS=7101762541en_US
dc.identifier.scopusauthoridSoh, AK=7006795203en_US
dc.identifier.scopusauthoridOng, JH=7103112764en_US

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