Tensile creep behavior of unidirectional glass-fiber polymer composites

Kontou, E

dc.contributor.author	Kontou, E	en
dc.date.accessioned	2014-03-01T01:23:10Z
dc.date.available	2014-03-01T01:23:10Z
dc.date.issued	2005	en
dc.identifier.issn	0272-8397	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16846
dc.subject	Glass Fiber	en
dc.subject.classification	Materials Science, Composites	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Composite materials	en
dc.subject.other	Creep	en
dc.subject.other	Plastic deformation	en
dc.subject.other	Strain rate	en
dc.subject.other	Tensile stress	en
dc.subject.other	Viscoelasticity	en
dc.subject.other	Creep deformation	en
dc.subject.other	Creep strain	en
dc.subject.other	Plastic strain	en
dc.subject.other	Polymer composites	en
dc.subject.other	Glass fiber reinforced plastics	en
dc.title	Tensile creep behavior of unidirectional glass-fiber polymer composites	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/pc.20098	en
heal.identifier.secondary	http://dx.doi.org/10.1002/pc.20098	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	The tensile creep behavior of unidirectional glass-fiber polymer composites was studied at three different temperatures, namely 298, 333, and 353 K. Testing was performed on the pure epoxy matrix, the 0 degrees specimens as well as off-axis at 15, 30, and 60 degrees in respect to the axis of tension. The creep strain rate was negligible at room temperature, while it was considerable at the higher temperatures examined. The materials exhibit nonlinear viscoelastic behavior, and the creep response of the composites was treated as a thermally activated rate process. The creep strain was considered to include an elastic, a viscoelastic and a viscoplastic part. The viscoplastic part was calculated through a functional form, developed in a previous work, assuming that viscoplastic response of polymer composites arises mainly from the matrix viscoplasticity. The model predictions in terms of creep compliances were found to be satisfactory, compared with the experimental results. (c) 2005 Society of Plastics Engineers.	en
heal.publisher	JOHN WILEY & SONS INC	en
heal.journalName	Polymer Composites	en
dc.identifier.doi	10.1002/pc.20098	en
dc.identifier.isi	ISI:000230251100005	en
dc.identifier.volume	26	en
dc.identifier.issue	3	en
dc.identifier.spage	287	en
dc.identifier.epage	292	en