Study of composite beams in asymmetric four-point bending

Theotokoglou, EE; Sideridis, E

dc.contributor.author	Theotokoglou, EE	en
dc.contributor.author	Sideridis, E	en
dc.date.accessioned	2014-03-01T01:37:09Z
dc.date.available	2014-03-01T01:37:09Z
dc.date.issued	2011	en
dc.identifier.issn	0731-6844	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/21465
dc.subject	asymmetric off-axis four-point bending	en
dc.subject	composite materials	en
dc.subject	experimental work	en
dc.subject	finite element analysis	en
dc.subject	glass-reinforced plastic	en
dc.subject	interlaminar shear strength	en
dc.subject	stress analysis	en
dc.subject.classification	Materials Science, Composites	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Classical theory	en
dc.subject.other	Composite beam	en
dc.subject.other	Design variables	en
dc.subject.other	Experimental investigations	en
dc.subject.other	experimental work	en
dc.subject.other	Four-point bending	en
dc.subject.other	Glass reinforced plastics	en
dc.subject.other	Interlaminar shear strength	en
dc.subject.other	Numerical results	en
dc.subject.other	Numerical studies	en
dc.subject.other	Numerical values	en
dc.subject.other	Off-axis	en
dc.subject.other	Composite materials	en
dc.subject.other	Finite element method	en
dc.subject.other	Reinforced plastics	en
dc.subject.other	Shear strength	en
dc.subject.other	Stress analysis	en
dc.subject.other	Stress concentration	en
dc.subject.other	Composite beams and girders	en
dc.title	Study of composite beams in asymmetric four-point bending	en
heal.type	journalArticle	en
heal.identifier.primary	10.1177/0731684411417199	en
heal.identifier.secondary	http://dx.doi.org/10.1177/0731684411417199	en
heal.language	English	en
heal.publicationDate	2011	en
heal.abstract	This article deals with the numerical study of composite beams in asymmetric four-point bending and the comparison of the induced results with experimental and numerical results. The measurement of the interlaminar shear strength of composite beams, an important design variable in many applications, may be suc-cessfully performed by the recently established asymmetric off-axis bending test. In order to obtain experimental results, specimens had been produced and tested to failure. A linear FEA is adopted throughout the composite beams to obtain the stress distributions in the beams and especially at the loading points and the supports where the stresses vary abruptly and present the most important discrepancies when compared with the classical theory. This is a main purpose of this article since the application of the FEA can elucidate the situation in these areas to a great extent. From the FEA, possible crack initiation positions are determined and compared with the corresponding results obtained from the experimental investigation. Also, a comparison between the experimental results of the deflections and the numerical values was carried out in order to estimate the declination. © The Author(s) 2011.	en
heal.publisher	SAGE PUBLICATIONS LTD	en
heal.journalName	Journal of Reinforced Plastics and Composites	en
dc.identifier.doi	10.1177/0731684411417199	en
dc.identifier.isi	ISI:000297327200005	en
dc.identifier.volume	30	en
dc.identifier.issue	13	en
dc.identifier.spage	1125	en
dc.identifier.epage	1137	en