The effect of geometric imperfections on the buckling behaviour of composite laminated cylinders under external hydrostatic pressure

Tsouvalis, NG; Zafeiratou, AA; Papazoglou, VJ

dc.contributor.author	Tsouvalis, NG	en
dc.contributor.author	Zafeiratou, AA	en
dc.contributor.author	Papazoglou, VJ	en
dc.date.accessioned	2014-03-01T01:19:36Z
dc.date.available	2014-03-01T01:19:36Z
dc.date.issued	2003	en
dc.identifier.issn	1359-8368	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15600
dc.subject	B. Buckling	en
dc.subject	Composites	en
dc.subject	Cylindrical shells	en
dc.subject	Geometric imperfections	en
dc.subject.classification	Engineering, Multidisciplinary	en
dc.subject.classification	Materials Science, Composites	en
dc.subject.other	Boundary conditions	en
dc.subject.other	Buckling	en
dc.subject.other	Defects	en
dc.subject.other	Laminated composites	en
dc.subject.other	Geometric imperfections	en
dc.subject.other	Hydrostatic pressing	en
dc.title	The effect of geometric imperfections on the buckling behaviour of composite laminated cylinders under external hydrostatic pressure	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S1359-8368(02)00106-3	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S1359-8368(02)00106-3	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	Using a new FE modelling procedure for the accurate representation of a geometrically imperfect cylinder, the present study investigates the effect of the initial imperfection magnitude on the cylinder buckling load, when it is loaded by external hydrostatic pressure. The buckling behaviour of a carbon/epoxy filament wound cylinder is initially studied and the modelling procedure is validated through a comparison between calculated and experimental results. Various FE models are developed and evaluated, with increasing degree of complexity. The method is then applied to a cylinder with different end supports, to assess how the boundary conditions together with the imperfections affect the buckling behaviour. Finally, the effect of imperfection magnitude is investigated, leading to the calculation of knockdown factors as low as 0.6. (C) 2003 Elsevier Science Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Composites Part B: Engineering	en
dc.identifier.doi	10.1016/S1359-8368(02)00106-3	en
dc.identifier.isi	ISI:000181952100001	en
dc.identifier.volume	34	en
dc.identifier.issue	3	en
dc.identifier.spage	217	en
dc.identifier.epage	226	en