CRACK PROPAGATION AND BIFURCATION IN FIBER-COMPOSITE MODELS: I. SOFT-HARD-SOFT SEQUENCE OF PHASES.

Theocaris, PS; Siarova, M; Papadopoulos, GA

dc.contributor.author	Theocaris, PS	en
dc.contributor.author	Siarova, M	en
dc.contributor.author	Papadopoulos, GA	en
dc.date.accessioned	2014-03-01T01:06:33Z
dc.date.available	2014-03-01T01:06:33Z
dc.date.issued	1986	en
dc.identifier.issn	07316844	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9472
dc.subject	Crack Propagation	en
dc.subject.other	COMPOSITE MATERIALS - Crack Propagation	en
dc.subject.other	EPOXY RESINS - Reinforcing	en
dc.subject.other	FRACTURE MECHANICS	en
dc.subject.other	BIFURCATION	en
dc.subject.other	DYNAMIC CAUSTICS	en
dc.subject.other	HIGH-SPEED PHOTOGRAPHY	en
dc.subject.other	MESOPHASE LAYERS	en
dc.subject.other	PLASTICS, REINFORCED	en
dc.title	CRACK PROPAGATION AND BIFURCATION IN FIBER-COMPOSITE MODELS: I. SOFT-HARD-SOFT SEQUENCE OF PHASES.	en
heal.type	journalArticle	en
heal.identifier.primary	10.1177/073168448600500104	en
heal.identifier.secondary	http://dx.doi.org/10.1177/073168448600500104	en
heal.publicationDate	1986	en
heal.abstract	The influence of the hard fiber and the mesophase layers in a soft-hard-soft combination of a biphase plate subjected to a dynamic tensile load, on the fracture mode and bifurcation process in both phases was investigated. For the present experimental investigation, a series of biphase epoxy-resin specimens were used. The influence of the mechanical properties of either phase on the crack propagation velocity and the initiation of crack bifurcation was studied by using high-speed photography and dynamic caustics. The results showed that the propagating crack tended to bifurcate either in the brittle or in the mesophase layer under certain conditions of velocity of propagation. It was shown that bifurcation of a propagating crack depends on the elastic moduli and Poisson's ratios of the phases, as well as on the extent of the mesophase layer, which depended on the adhesion quality of phases.	en
heal.journalName	Journal of Reinforced Plastics and Composites	en
dc.identifier.doi	10.1177/073168448600500104	en
dc.identifier.volume	5	en
dc.identifier.issue	1	en
dc.identifier.spage	23	en
dc.identifier.epage	50	en