Formulation of the viscoplastic behavior of epoxy-glass fiber composites

Kontou, E; Kallimanis, A

dc.contributor.author	Kontou, E	en
dc.contributor.author	Kallimanis, A	en
dc.date.accessioned	2014-03-01T01:22:26Z
dc.date.available	2014-03-01T01:22:26Z
dc.date.issued	2005	en
dc.identifier.issn	0021-9983	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16565
dc.subject	Fiber composites	en
dc.subject	Material anisotropy	en
dc.subject	Nonlinearity	en
dc.subject	Rate effect	en
dc.subject	Viscoplasticity	en
dc.subject.classification	Materials Science, Composites	en
dc.subject.other	Anisotropy	en
dc.subject.other	Epoxy resins	en
dc.subject.other	Glass fibers	en
dc.subject.other	Kinematics	en
dc.subject.other	Mathematical models	en
dc.subject.other	Plastic deformation	en
dc.subject.other	Strain rate	en
dc.subject.other	Tensile properties	en
dc.subject.other	Vectors	en
dc.subject.other	Viscoplasticity	en
dc.subject.other	Fiber composites	en
dc.subject.other	Material anisotropy	en
dc.subject.other	Nonlinearity	en
dc.subject.other	Rate effects	en
dc.subject.other	Composite materials	en
dc.title	Formulation of the viscoplastic behavior of epoxy-glass fiber composites	en
heal.type	journalArticle	en
heal.identifier.primary	10.1177/0021998305048152	en
heal.identifier.secondary	http://dx.doi.org/10.1177/0021998305048152	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	The tensile behavior of epoxy-glass fiber composites is examined experimentally and theoretically, in terms of a 3-D viscoplastic model, appropriate for material anisotropy. For the kinematic description, the multiplicative decomposition of the deformation gradient tensor has been used, while a flow rule for an orthotropic material, based on a dyadic of vectors parallel to the material axes, is introduced. Moreover, a functional form expressing the rate of plastic deformation, developed for polymeric materials in earlier works, is applied in the case of polymeric composites. A satisfactory agreement with the experimental results of the off-axis specimens is found, while the strain rate effect is described in terms of a scaling rule, valid in the viscoplasticity. © 2005 Sage Publications.	en
heal.publisher	SAGE PUBLICATIONS LTD	en
heal.journalName	Journal of Composite Materials	en
dc.identifier.doi	10.1177/0021998305048152	en
dc.identifier.isi	ISI:000228623700003	en
dc.identifier.volume	39	en
dc.identifier.issue	8	en
dc.identifier.spage	711	en
dc.identifier.epage	721	en