Nonlinear inelastic buckling of rigid-jointed frames under finite displacements

Kounadis, AN

dc.contributor.author	Kounadis, AN	en
dc.date.accessioned	2014-03-01T01:06:55Z
dc.date.available	2014-03-01T01:06:55Z
dc.date.issued	1987	en
dc.identifier.issn	0001-5970	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9679
dc.subject.classification	Mechanics	en
dc.subject.other	TRUSSES - Structural Analysis	en
dc.subject.other	IMPERFECTION SENSITIVITY	en
dc.subject.other	INELASTIC BUCKLING	en
dc.subject.other	POSTBUCKLING	en
dc.subject.other	STRUCTURAL FRAMES	en
dc.title	Nonlinear inelastic buckling of rigid-jointed frames under finite displacements	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF01182132	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF01182132	en
heal.language	English	en
heal.publicationDate	1987	en
heal.abstract	A nonlinear analytical approach for establishing the precise load-carrying capacity of imperfection-sensitive frames, made from ideal elastic-plastic material, is presented. The imperfection sensitivity is due to support eccentricities of columns. Stability criteria for both modes of failure, due to elastic and inelastic buckling, are established. The failure through inelastic buckling occurs for frames exhibiting postbuckling strength or monotonically rising equilibrium paths. The inelastic analysis is approximate with a basic assumption that the overall response of the frame can be predicted by considering the elastoplastic stress distribution at only one single (the most unfavorable) cross-section. Plastic buckling is associated with a limit point instability. Simple formulas for evaluating the stress distribution at the critical sections in both the elastic and inelastic range are assessed. The proposed method is demonstrated by means of a simple two-bar frame for which the overall response from the onset of loading up to failure is determined. © 1987 Springer-Verlag.	en
heal.publisher	Springer-Verlag	en
heal.journalName	Acta Mechanica	en
dc.identifier.doi	10.1007/BF01182132	en
dc.identifier.isi	ISI:A1987J315900014	en
dc.identifier.volume	67	en
dc.identifier.issue	1-4	en
dc.identifier.spage	191	en
dc.identifier.epage	207	en