Efficiency and accuracy of linearized postbuckling analyses of frames based on elastica

Kounadis, AN

dc.contributor.author	Kounadis, AN	en
dc.date.accessioned	2014-03-01T01:07:08Z
dc.date.available	2014-03-01T01:07:08Z
dc.date.issued	1988	en
dc.identifier.issn	0020-7683	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9815
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-38249032295&partnerID=40&md5=01cd7c7cb0ff446b08ca4499610527dc	en
dc.subject.classification	Mechanics	en
dc.title	Efficiency and accuracy of linearized postbuckling analyses of frames based on elastica	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1988	en
heal.abstract	The efficiency, accuracy and ease in use of linearized stability analyses for establishing the postbuckling response of rigid jointed frames is discussed using as a model a simple rectangular frame. This is accomplished by comparing a variety of results of the linearized stability analyses with those of the exact elastica analysis the governing equations of which appear for the first time in the technical literature; important conclusions on the accuracy and range of applicability of the foregoing linearized stability analyses are drawn. It is found that the completely linearized stability analysis, corresponding to a linear boundary-value problem, furnishes very reliable results which are quite near to those of the widely used non-linear kinematic stability analysis and much more accurate than those of the standard (incompressible) elastica; thus the former analysis, being the simplest possible postbuckling analysis, constitutes, for structural design purposes the most powerful method for determining the initial postbuckling response of frames. © 1988.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	International Journal of Solids and Structures	en
dc.identifier.isi	ISI:A1988R517600002	en
dc.identifier.volume	24	en
dc.identifier.issue	11	en
dc.identifier.spage	1097	en
dc.identifier.epage	1112	en