The effects of the joint stiffness and of the constraints on the type of instability of a frame under a follower force

Kounadis, AN; Economou, AP

dc.contributor.author	Kounadis, AN	en
dc.contributor.author	Economou, AP	en
dc.date.accessioned	2014-03-01T01:05:52Z
dc.date.available	2014-03-01T01:05:52Z
dc.date.issued	1980	en
dc.identifier.issn	0001-5970	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9042
dc.subject.classification	Mechanics	en
dc.subject.other	STRUCTURAL ANALYSIS - Stability	en
dc.subject.other	STRUCTURAL DESIGN	en
dc.title	The effects of the joint stiffness and of the constraints on the type of instability of a frame under a follower force	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/BF01214629	en
heal.identifier.secondary	http://dx.doi.org/10.1007/BF01214629	en
heal.language	English	en
heal.publicationDate	1980	en
heal.abstract	In this paper the type of instability of a T form frame with joint mass M subjected to a compressive follower force P applied at the joint is investigated on the basis of both the dynamic (variational) and static approach. It is shown that the frame loses its stability through divergence and its critical load is independent of the joint stiffness when the support of the compressed bar is hinged; in contrast, if this support is fully fixed the frame, depending on the joint stiffness, may lose its stability either through divergence or through flutter. However, the region of flutter type instability is very limited which shows that the divergence instability is the rule and not the exception and accordingly the simple static(stability) approach is applicable. Moreover, it is found that the change of the buckling mechanism from flutter to divergence and vice versa is associated with a jump in the critical load. © 1980 Springer-Verlag.	en
heal.publisher	Springer-Verlag	en
heal.journalName	Acta Mechanica	en
dc.identifier.doi	10.1007/BF01214629	en
dc.identifier.isi	ISI:A1980JU14500003	en
dc.identifier.volume	36	en
dc.identifier.issue	3-4	en
dc.identifier.spage	157	en
dc.identifier.epage	168	en