Collapse of thin-wall composite sections subjected to high speed axial loading

Mamalis, AG; Yuan, YB; Viegelahn, GL

dc.contributor.author	Mamalis, AG	en
dc.contributor.author	Yuan, YB	en
dc.contributor.author	Viegelahn, GL	en
dc.date.accessioned	2014-03-01T01:08:44Z
dc.date.available	2014-03-01T01:08:44Z
dc.date.issued	1992	en
dc.identifier.issn	0143-3369	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10656
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0026960380&partnerID=40&md5=d4adea44ddbd8bd1168fc1f139a93ee0	en
dc.subject	COLLAPSE	en
dc.subject	COMPOSITE MATERIALS	en
dc.subject	CRUSHING	en
dc.subject	ENERGY ABSORPTION	en
dc.subject	FAILURE	en
dc.subject	FIBERS	en
dc.subject	GLASSFIBRE	en
dc.subject	THIN-WALL SECTIONS	en
dc.subject.classification	Engineering, Mechanical	en
dc.subject.classification	Transportation Science & Technology	en
dc.subject.other	Automobile materials	en
dc.subject.other	Crashworthiness	en
dc.subject.other	Energy absorption	en
dc.subject.other	Glass fiber reinforced plastics	en
dc.subject.other	Mechanical testing	en
dc.subject.other	Vinyl resins	en
dc.subject.other	Crushing tests	en
dc.subject.other	Fiberglass	en
dc.subject.other	Fibre contents	en
dc.subject.other	Ply lay-up	en
dc.subject.other	Specific energy absorption	en
dc.subject.other	Thin wall composite sections	en
dc.subject.other	Vinylester resins	en
dc.subject.other	Composite materials	en
dc.title	Collapse of thin-wall composite sections subjected to high speed axial loading	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1992	en
heal.abstract	In this paper, static and dynamic crushing tests in a speed range of 18-24 m/s were conducted on specimens of different geometries: square tube, circular tube, and circular cone specimens made of three different composite materials. Two of the composite materials consist of fiberglass and vinylester resin, but with different fibre contents and ply lay-up. The third is made of fiberglass and polyester resin. This study investigated the effects of specimen geometry and crush speed on the specific energy absorption of these composite materials. It was found that for specimens showing stable crushing, greater thickness tends to reduce the specific energy absorption; square tubes have less specific energy absorption than circular tubes, and greater cone angle results in lower specific energy. Crushing speed does not have significant effect on the specific energy absorption of thin-walled circular or square tubes made of the three kinds of composite materials. However, specific energy of thin-walled circular conical specimens made of polyester resin and random chopped strand mat of glassfibre were reduced by some 35% under a crushing speed of about 21 m/s. It is also clear from this study that at higher crush speeds the crushing mechanisms of tubular specimens with large thickness differ from the static cases.	en
heal.publisher	INDERSCIENCE ENTERPRISES LTD	en
heal.journalName	International Journal of Vehicle Design	en
dc.identifier.isi	ISI:A1992KG22100014	en
dc.identifier.volume	13	en
dc.identifier.issue	5-6	en
dc.identifier.spage	564	en
dc.identifier.epage	579	en