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Article: Stress concentration factors of DK square-to-square tubular joints

TitleStress concentration factors of DK square-to-square tubular joints
Authors
Issue Date1995
Citation
Journal Of Offshore Mechanics And Arctic Engineering, 1995, v. 117 n. 4, p. 265-275 How to Cite?
AbstractThe fatigue life of tubular joints with many braces, e.g., DK and DTK joints, are commonly determined by treating them as tubular joints with less braces, e.g., T/Y, K, and X joints, based on the joint classification approach recommended by the American Petroleum Institute. The DK square-to-square tubular joint type was selected to verify the reliability and accuracy of such an approach. A parametric stress analysis of DK square-to-square tubular joints subjected to axial loads, in-plane and out-of-plane bending moments has been performed using the finite element technique. The results of this analysis are presented as a set of formulas expressing the stress concentration factor as a function of the relevant geometric parameters for various loading conditions. A comparison is made between the results obtained for DK square-to-square tubular joints and those obtained for X and K square-to-square tubular joints, which are commonly employed to simulate the former when the joint classification approach is adopted. In general, the stress concentration factors for DK joints are significantly higher, which shows that the recommended approach may not be reliable and accurate in dealing with DK joints.
Persistent Identifierhttp://hdl.handle.net/10722/156426
ISSN
2015 Impact Factor: 0.711
2015 SCImago Journal Rankings: 0.698

 

DC FieldValueLanguage
dc.contributor.authorSoh, AKen_US
dc.contributor.authorSoh, CKen_US
dc.date.accessioned2012-08-08T08:42:23Z-
dc.date.available2012-08-08T08:42:23Z-
dc.date.issued1995en_US
dc.identifier.citationJournal Of Offshore Mechanics And Arctic Engineering, 1995, v. 117 n. 4, p. 265-275en_US
dc.identifier.issn0892-7219en_US
dc.identifier.urihttp://hdl.handle.net/10722/156426-
dc.description.abstractThe fatigue life of tubular joints with many braces, e.g., DK and DTK joints, are commonly determined by treating them as tubular joints with less braces, e.g., T/Y, K, and X joints, based on the joint classification approach recommended by the American Petroleum Institute. The DK square-to-square tubular joint type was selected to verify the reliability and accuracy of such an approach. A parametric stress analysis of DK square-to-square tubular joints subjected to axial loads, in-plane and out-of-plane bending moments has been performed using the finite element technique. The results of this analysis are presented as a set of formulas expressing the stress concentration factor as a function of the relevant geometric parameters for various loading conditions. A comparison is made between the results obtained for DK square-to-square tubular joints and those obtained for X and K square-to-square tubular joints, which are commonly employed to simulate the former when the joint classification approach is adopted. In general, the stress concentration factors for DK joints are significantly higher, which shows that the recommended approach may not be reliable and accurate in dealing with DK joints.en_US
dc.languageengen_US
dc.relation.ispartofJournal of Offshore Mechanics and Arctic Engineeringen_US
dc.titleStress concentration factors of DK square-to-square tubular jointsen_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-s2.0-0029410112en_US
dc.identifier.volume117en_US
dc.identifier.issue4en_US
dc.identifier.spage265en_US
dc.identifier.epage275en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridSoh, AK=7006795203en_US
dc.identifier.scopusauthoridSoh, CK=7102818722en_US

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