Effect of stiffening configurations on fracture of aluminium structures

Galanis, KP; Papazoglou, VJ

dc.contributor.author	Galanis, KP	en
dc.contributor.author	Papazoglou, VJ	en
dc.date.accessioned	2014-03-01T01:30:17Z
dc.date.available	2014-03-01T01:30:17Z
dc.date.issued	2009	en
dc.identifier.issn	0039-2103	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19530
dc.subject	Aluminium	en
dc.subject	Crack	en
dc.subject	Propagation	en
dc.subject	Stiffener	en
dc.subject.classification	Materials Science, Characterization & Testing	en
dc.subject.other	Aluminum	en
dc.subject.other	Architectural design	en
dc.subject.other	Cracks	en
dc.subject.other	Fracture	en
dc.subject.other	Fracture testing	en
dc.subject.other	Offshore structures	en
dc.subject.other	Plates (structural components)	en
dc.subject.other	Reconstruction (structural)	en
dc.subject.other	Shipbuilding	en
dc.subject.other	Ships	en
dc.subject.other	Thin walled structures	en
dc.subject.other	Aluminium	en
dc.subject.other	Aluminium structures	en
dc.subject.other	Compact tension specimens	en
dc.subject.other	Component testing	en
dc.subject.other	Crack patterns	en
dc.subject.other	Critical areas	en
dc.subject.other	Fracture models	en
dc.subject.other	Large-scale models	en
dc.subject.other	Light-weight materials	en
dc.subject.other	Marine structures	en
dc.subject.other	Material usages	en
dc.subject.other	Propagation	en
dc.subject.other	Ship designers	en
dc.subject.other	Shipbuilding industries	en
dc.subject.other	Stiffened panels	en
dc.subject.other	Stiffened plates	en
dc.subject.other	Stiffener	en
dc.subject.other	Structural response	en
dc.subject.other	Unstiffened plates	en
dc.subject.other	Structural design	en
dc.title	Effect of stiffening configurations on fracture of aluminium structures	en
heal.type	journalArticle	en
heal.identifier.primary	10.1111/j.1475-1305.2008.00426.x	en
heal.identifier.secondary	http://dx.doi.org/10.1111/j.1475-1305.2008.00426.x	en
heal.language	English	en
heal.publicationDate	2009	en
heal.abstract	Traditionally, marine structures have been designed to resist yielding, buckling and fatigue, but not fracture. This is because existing data regarding fracture on large-scale models are limited. Consequently, adequate methods and procedures to design vessels to resist fracture have not been developed, although the shipbuilding industry is seeking to achieve advanced and more efficient concepts and designs for vessels with improved safety and performance using optimised structural design. The rapidly increasing application of lightweight materials and thin-walled structures in several industries requires fundamental understanding of mechanisms and mechanics of fracture that govern stiffened panels. Therefore, a comprehensive tool consisting of application of advanced fracture models, material calibration, and validation through component testing is provided that will increase the survivability envelope of new vessels. This paper presents the effect of stiffening configurations on fracture of aluminium structures by studying the structural response of various stiffened plates which are compared with unstiffened plates represented by small-scale compact tension (CT) specimens. It is shown that mapping of crack patterns in stiffened plates is feasible and can enable ship designers to evaluate critical areas within a structure with respect to crack initiation, propagation and optimum material usage. © 2009 Blackwell Publishing Ltd.	en
heal.publisher	WILEY-BLACKWELL PUBLISHING, INC	en
heal.journalName	Strain	en
dc.identifier.doi	10.1111/j.1475-1305.2008.00426.x	en
dc.identifier.isi	ISI:000263911200004	en
dc.identifier.volume	45	en
dc.identifier.issue	2	en
dc.identifier.spage	131	en
dc.identifier.epage	138	en