Strategy for numerical verification of steel structures at the ultimate limit state

Gantes, CJ; Fragkopoulos, KA

dc.contributor.author	Gantes, CJ	en
dc.contributor.author	Fragkopoulos, KA	en
dc.date.accessioned	2014-03-01T01:34:41Z
dc.date.available	2014-03-01T01:34:41Z
dc.date.issued	2010	en
dc.identifier.issn	1573-2479	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20795
dc.subject	Advanced analysis	en
dc.subject	Geometric nonlinearity	en
dc.subject	Imperfections	en
dc.subject	Material nonlinearity	en
dc.subject	Steel structures	en
dc.subject	Ultimate limit state	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.other	Advanced analysis	en
dc.subject.other	Geometric non-linearity	en
dc.subject.other	Imperfections	en
dc.subject.other	Material non-linearity	en
dc.subject.other	Ultimate limit state	en
dc.subject.other	Computer software	en
dc.subject.other	Steel structures	en
dc.subject.other	Stress concentration	en
dc.subject.other	Finite element method	en
dc.title	Strategy for numerical verification of steel structures at the ultimate limit state	en
heal.type	journalArticle	en
heal.identifier.primary	10.1080/15732470802664449	en
heal.identifier.secondary	http://dx.doi.org/10.1080/15732470802664449	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	A strategy is proposed for understanding the behaviour, predicting all possible failure mechanisms, evaluating the strength, and assessing the vulnerability of steel structures by means of numerical analyses using commercially available finite element software. The ultimate objective is to have a reliable numerical tool for carrying out strength verifications at the ultimate limit state. Critical buckling modes from linearised buckling analyses (LBA) of an appropriate finite element model are used as imperfection patterns for geometrically and material nonlinear imperfection analyses (GMNIA). Equilibrium paths accompanied by snapshots of deformation and stress distribution at characteristic points are proposed as a powerful tool for evaluating the results. Practical details of the implementation of the proposed strategy are discussed. Results of two case studies are used to demonstrate this methodology: (a) unreinforced and reinforced steel plates in pure compression, (b) a box-section cantilever beam with transverse and longitudinal stiffeners. © 2010 Taylor & Francis.	en
heal.publisher	TAYLOR & FRANCIS LTD	en
heal.journalName	Structure and Infrastructure Engineering	en
dc.identifier.doi	10.1080/15732470802664449	en
dc.identifier.isi	ISI:000274256300016	en
dc.identifier.volume	6	en
dc.identifier.issue	1-2	en
dc.identifier.spage	225	en
dc.identifier.epage	255	en