The effect of interaction of loadings and geometry imperfection on the buckling state of frames

Yiagos, AN; Ioannidis, G; Kounadis, AN

dc.contributor.author	Yiagos, AN	en
dc.contributor.author	Ioannidis, G	en
dc.contributor.author	Kounadis, AN	en
dc.date.accessioned	2014-03-01T01:07:41Z
dc.date.available	2014-03-01T01:07:41Z
dc.date.issued	1989	en
dc.identifier.issn	01787675	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10114
dc.subject	Critical Value	en
dc.subject	Nonlinear Stability	en
dc.title	The effect of interaction of loadings and geometry imperfection on the buckling state of frames	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF01046478	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF01046478	en
heal.publicationDate	1989	en
heal.abstract	In this paper the effect of the interaction of two loadings, and of the deviation from right angle on the buckling mechanism of a rectangular two-bar frame is discussed. Using a nonlinear stability analysis it is found that there is a critical value of the ratio of the two loadings, as well as of the deviation from right angle, for which the physical equilibrium path and the physically unacceptable complementary path meet each other at an asymmetric bifurcation point. At this point, the response of the frame changes from an elastic limit point instability to a stable equilibrium path associated with inelastic buckling. The analysis is supplemented by a variety of numerical results obtained by an efficient and reliable simplified nonlinear stability analysis applied for the first time to a non-rectangular frame. © 1989 Springer-Verlag.	en
heal.publisher	Springer-Verlag	en
heal.journalName	Computational Mechanics	en
dc.identifier.doi	10.1007/BF01046478	en
dc.identifier.volume	5	en
dc.identifier.issue	2-3	en
dc.identifier.spage	95	en
dc.identifier.epage	103	en