The effect of aspect ratio on the elastoplastic response of stiffened plates loaded in uniaxial edge compression

Toulios, M; Caridis, PA

dc.contributor.author	Toulios, M	en
dc.contributor.author	Caridis, PA	en
dc.date.accessioned	2014-03-01T01:18:25Z
dc.date.available	2014-03-01T01:18:25Z
dc.date.issued	2002	en
dc.identifier.issn	0045-7949	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14988
dc.subject	Buckling	en
dc.subject	Dynamic relaxation	en
dc.subject	Residual Stresses	en
dc.subject	Stiffened plates	en
dc.subject	Ultimate strength	en
dc.subject.classification	Computer Science, Interdisciplinary Applications	en
dc.subject.classification	Engineering, Civil	en
dc.subject.other	Algorithms	en
dc.subject.other	Aspect ratio	en
dc.subject.other	Buckling	en
dc.subject.other	Compressibility of solids	en
dc.subject.other	Elastoplasticity	en
dc.subject.other	Finite element method	en
dc.subject.other	Residual stresses	en
dc.subject.other	Uniaxial edge compression	en
dc.subject.other	Plates (structural components)	en
dc.title	The effect of aspect ratio on the elastoplastic response of stiffened plates loaded in uniaxial edge compression	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0045-7949(02)00080-9	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0045-7949(02)00080-9	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	A numerical study of the effect of aspect ratio on the buckling and collapse behaviour of flatbar-stiffened plates in compression is described. The plate equations are expressed in finite difference form and the solution is obtained using a dynamic relaxation algorithm. Initial imperfections and residual stresses are also introduced in the study. It was found that, for aspect ratios between 2 and 3.5, buckling occurs in the elastic regime, with the panels exhibiting significant post-buckling strength prior to collapse. For aspect ratios between I and 2 buckling occurs as the plastic zone increases, followed by rapid unloading as the panel collapses suddenly. The ultimate strength of the panel reduces with increasing aspect ratio, remaining practically constant at higher aspect ratios. The latter is attributed to the initial single half-wave distortion profile that prohibits the formation of the preferred buckling mode. (C) 2002 Elsevier Science Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	Computers and Structures	en
dc.identifier.doi	10.1016/S0045-7949(02)00080-9	en
dc.identifier.isi	ISI:000177620700009	en
dc.identifier.volume	80	en
dc.identifier.issue	14-15	en
dc.identifier.spage	1317	en
dc.identifier.epage	1328	en