Interlaminar shear test for fibre-reinforced plastics

Sideridis, E; Ashton, JN; Kitching, R

dc.contributor.author	Sideridis, E	en
dc.contributor.author	Ashton, JN	en
dc.contributor.author	Kitching, R	en
dc.date.accessioned	2014-03-01T01:41:50Z
dc.date.available	2014-03-01T01:41:50Z
dc.date.issued	1993	en
dc.identifier.issn	09544089	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/23656
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0027147628&partnerID=40&md5=7e4d2636732019c9d868819205e572b9	en
dc.subject.other	Crack propagation	en
dc.subject.other	Failure (mechanical)	en
dc.subject.other	Laminated composites	en
dc.subject.other	Mathematical models	en
dc.subject.other	Mechanical testing	en
dc.subject.other	Mechanical variables measurement	en
dc.subject.other	Photography	en
dc.subject.other	Shear strength	en
dc.subject.other	Four point bend method	en
dc.subject.other	Interlaminar shear strength	en
dc.subject.other	Interlaminar shear test	en
dc.subject.other	Glass fiber reinforced plastics	en
dc.title	Interlaminar shear test for fibre-reinforced plastics	en
heal.type	journalArticle	en
heal.publicationDate	1993	en
heal.abstract	The measurement of the interlaminar shear strength of glass-reinforced plastic (GRP) laminates is proposed using an offset four-point bend test on a beam where two (P) of the four forces differ from the other two (Q) and the ratio λ = P/Q depends upon the relative positions along the beam. The paper describes the development of this test which appears simpler, more economic and more realistic in many aspects than other test methods. It is demonstrated theoretically and experimentally that the span length (L), thickness (t) and the ratio λ are important test parameters in determining whether the failure is by shear or by flexure. A test rig was designed and constructed to investigate the influence of these parameters and to determine the interlaminar shear strength of a GRP laminate. Specimens were made from polyester resin containing E-glass fibres in the form of chopped strand mat (CSM). Clear and repeatable interlaminar shear failures have been obtained where L/t was relatively small and λ large. The crack formation mechanism was studied using photography.	en
heal.journalName	Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering	en
dc.identifier.volume	207	en
dc.identifier.issue	E1	en
dc.identifier.spage	61	en
dc.identifier.epage	72	en