A simple and efficient solution method for the limit elasto-plastic analysis of plane frames

Papadrakakis, M; Karamanos, SA

dc.contributor.author	Papadrakakis, M	en
dc.contributor.author	Karamanos, SA	en
dc.date.accessioned	2014-03-01T01:08:13Z
dc.date.available	2014-03-01T01:08:13Z
dc.date.issued	1991	en
dc.identifier.issn	01787675	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10353
dc.subject	Limit Analysis	en
dc.subject	Preconditioned Conjugate Gradient Method	en
dc.subject	First Order	en
dc.title	A simple and efficient solution method for the limit elasto-plastic analysis of plane frames	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF00577377	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF00577377	en
heal.publicationDate	1991	en
heal.abstract	A solution method for the first order step-by-step limit analysis of plane frames is presented. The formulation of the governing equations is based on the 'plastic node' method and takes into account stress reversals and any type of yield conditions. The solution of the governing equilibrium equations in each step is obtained with the preconditioned conjugate gradient method. Special attention is paid to the fact that the overall stiffness matrix changes gradually with the successive formation of 'plastic nodes'. A number of test problems have been performed which show the usefulness of the present approach. The results also reveal the superiority of this technique, in both storage requirements and computing time, with respect to efficient methods of solution. © 1991 Springer-Verlag.	en
heal.publisher	Springer-Verlag	en
heal.journalName	Computational Mechanics	en
dc.identifier.doi	10.1007/BF00577377	en
dc.identifier.volume	8	en
dc.identifier.issue	4	en
dc.identifier.spage	235	en
dc.identifier.epage	248	en