An improved energy criterion for dynamic buckling of imperfection sensitive nonconservation systems

Kounadis, AN; Gantes, CJ; Bolotin, VV

dc.contributor.author	Kounadis, AN	en
dc.contributor.author	Gantes, CJ	en
dc.contributor.author	Bolotin, VV	en
dc.date.accessioned	2014-03-01T01:16:08Z
dc.date.available	2014-03-01T01:16:08Z
dc.date.issued	2001	en
dc.identifier.issn	0020-7683	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13938
dc.subject	Dynamic buckling	en
dc.subject	Energy criterion	en
dc.subject	Imperfection sensitivity	en
dc.subject	Nonconservative systems	en
dc.subject.classification	Mechanics	en
dc.subject.other	Energy dissipation	en
dc.subject.other	Loading	en
dc.subject.other	Stability	en
dc.subject.other	Structural analysis	en
dc.subject.other	Energy balance equation	en
dc.subject.other	Buckling	en
dc.subject.other	buckling	en
dc.title	An improved energy criterion for dynamic buckling of imperfection sensitive nonconservation systems	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0020-7683(01)00042-7	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0020-7683(01)00042-7	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	Imperfection sensitive, multi-degree-of-freedom, autonomous, structural systems under partial follower compressive loading, which lose their stability via divergence are investigated both qualitatively and quantitatively. Attention is focused on the global instability of that equilibrium state on the locally stable primary path, which at a certain level of the loading becomes globally unstable. Previous work valid for potential systems under step loading is extended here to nonpotential, imperfection sensitive systems. The serious difficulty of the lack of potential of the follower type of loading is overcome by formulating an appropriate energy balance equation, including loss of energy. Then, similar considerations to those for potential systems can be established, and geometric criteria can be formulated for an ""equivalent energy"" surface. Using the mean-value theorem for integrals one can obtain approximate dynamic buckling loads that are very good for structural design purposes. The efficiency and reliability of the proposed method is comprehensively demonstrated through numerous examples. © 2001 Elsevier Science Ltd. All rights reserved.	en
heal.publisher	PERGAMON-ELSEVIER SCIENCE LTD	en
heal.journalName	International Journal of Solids and Structures	en
dc.identifier.doi	10.1016/S0020-7683(01)00042-7	en
dc.identifier.isi	ISI:000171213600008	en
dc.identifier.volume	38	en
dc.identifier.issue	42-43	en
dc.identifier.spage	7487	en
dc.identifier.epage	7500	en