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Article: Mixed variational formulation for thin-walled beams with shear lag

TitleMixed variational formulation for thin-walled beams with shear lag
Authors
Issue Date1989
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/em.html
Citation
Journal Of Engineering Mechanics, 1989, v. 115 n. 10, p. 2271-2286 How to Cite?
AbstractA mixed variational principle for thin-walled prismatic structures is formulated and a solution method is proposed. In this principle, the cross section of the thin-walled prismatic structure is assumed to be rigid in its own plane, but flexible out of plane, and both the stresses and displacements are considered to be unknown variables in this function. The solutions are expanded in a series of coordinate functions and the governing equations of the unknown functions are derived. The coordinate functions for bending problems can be deduced systematically and the solutions can be obtained in simple closed form. This method can be applied to members with rows of openings and to problems involving shear lag phenomena. Numerical examples show that only the first two terms in the solution series will give an approximate result in which the shear lag phenomenon has been reflected, while a three-term solution will give a satisfactory result in comparisons with the finite strip method.
Persistent Identifierhttp://hdl.handle.net/10722/149923
ISSN
2015 Impact Factor: 1.346
2015 SCImago Journal Rankings: 0.747

 

DC FieldValueLanguage
dc.contributor.authorKoo, KKen_US
dc.contributor.authorCheung, YKen_US
dc.date.accessioned2012-06-26T06:00:34Z-
dc.date.available2012-06-26T06:00:34Z-
dc.date.issued1989en_US
dc.identifier.citationJournal Of Engineering Mechanics, 1989, v. 115 n. 10, p. 2271-2286en_US
dc.identifier.issn0733-9399en_US
dc.identifier.urihttp://hdl.handle.net/10722/149923-
dc.description.abstractA mixed variational principle for thin-walled prismatic structures is formulated and a solution method is proposed. In this principle, the cross section of the thin-walled prismatic structure is assumed to be rigid in its own plane, but flexible out of plane, and both the stresses and displacements are considered to be unknown variables in this function. The solutions are expanded in a series of coordinate functions and the governing equations of the unknown functions are derived. The coordinate functions for bending problems can be deduced systematically and the solutions can be obtained in simple closed form. This method can be applied to members with rows of openings and to problems involving shear lag phenomena. Numerical examples show that only the first two terms in the solution series will give an approximate result in which the shear lag phenomenon has been reflected, while a three-term solution will give a satisfactory result in comparisons with the finite strip method.en_US
dc.languageengen_US
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/em.htmlen_US
dc.relation.ispartofJournal of Engineering Mechanicsen_US
dc.titleMixed variational formulation for thin-walled beams with shear lagen_US
dc.typeArticleen_US
dc.identifier.emailCheung, YK:hreccyk@hkucc.hku.hken_US
dc.identifier.authorityCheung, YK=rp00104en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0024740201en_US
dc.identifier.volume115en_US
dc.identifier.issue10en_US
dc.identifier.spage2271en_US
dc.identifier.epage2286en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridKoo, KK=7101810458en_US
dc.identifier.scopusauthoridCheung, YK=7202111065en_US

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