Post buckling progressive failure analysis of composite laminated stiffened panels

Anyfantis, KN; Tsouvalis, NG

dc.contributor.author	Anyfantis, KN	en
dc.contributor.author	Tsouvalis, NG	en
dc.date.accessioned	2014-03-01T02:12:02Z
dc.date.available	2014-03-01T02:12:02Z
dc.date.issued	2012	en
dc.identifier.issn	0929189X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29991
dc.subject	Buckling	en
dc.subject	Damage mechanics	en
dc.subject	Finite element analysis	en
dc.subject	Progressive failure	en
dc.subject.other	Compression and tension	en
dc.subject.other	Damage mechanics	en
dc.subject.other	Failure criteria	en
dc.subject.other	Failure detection	en
dc.subject.other	Failure initiation	en
dc.subject.other	Failure mechanism	en
dc.subject.other	Fibre reinforced composites	en
dc.subject.other	Final failures	en
dc.subject.other	Global failure	en
dc.subject.other	Material degradation	en
dc.subject.other	Matrix failure	en
dc.subject.other	Nonlinear finite element method	en
dc.subject.other	Numerical predictions	en
dc.subject.other	Postbuckling	en
dc.subject.other	Progressive failure	en
dc.subject.other	Progressive failure analysis	en
dc.subject.other	Shear failure	en
dc.subject.other	Stiffened composite panel	en
dc.subject.other	Stiffened panel	en
dc.subject.other	Tsai-Wu failure criterion	en
dc.subject.other	Degradation	en
dc.subject.other	Finite element method	en
dc.subject.other	Laminated composites	en
dc.subject.other	Structural panels	en
dc.subject.other	Buckling	en
dc.title	Post buckling progressive failure analysis of composite laminated stiffened panels	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s10443-011-9191-1	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s10443-011-9191-1	en
heal.publicationDate	2012	en
heal.abstract	The present work deals with the numerical prediction of the post buckling progressive and final failure response of stiffened composite panels based on structural nonlinear finite element methods. For this purpose, a progressive failure model (PFM) is developed and applied to predict the behaviour of an experimentally tested blade-stiffened panel found in the literature. Failure initiation and propagation is calculated, owing to the accumulation of the intralaminar failure modes induced in fibre reinforced composite materials. Hashin failure criteria have been employed in order to address the fiber and matrix failure modes in compression and tension. On the other hand, the Tsai-Wu failure criterion has been utilized for addressing shear failure. Failure detection is followed with the introduction of corresponding material degradation rules depending on the individual failure mechanisms. Failure initiation and failure propagation as well as the post buckling ultimate attained load have been numerically evaluated. Final failure behaviour of the simulated stiffened panel is due to sudden global failure, as concluded from comparisons between numerical and experimental results being in good agreement. © Springer Science+Business Media B.V. 2011.	en
heal.journalName	Applied Composite Materials	en
dc.identifier.doi	10.1007/s10443-011-9191-1	en
dc.identifier.volume	19	en
dc.identifier.issue	3-4	en
dc.identifier.spage	219	en
dc.identifier.epage	236	en