Determination of the fracture process zone under Mode i fracture in glass fiber composites

Tsouvalis, NG; Anyfantis, KN

dc.contributor.author	Tsouvalis, NG	en
dc.contributor.author	Anyfantis, KN	en
dc.date.accessioned	2014-03-01T02:08:36Z
dc.date.available	2014-03-01T02:08:36Z
dc.date.issued	2012	en
dc.identifier.issn	00219983	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29690
dc.subject	cohesive elements	en
dc.subject	cohesive zone model	en
dc.subject	Crack growth	en
dc.subject	DCB	en
dc.subject	delamination	en
dc.subject	interface	en
dc.subject.other	Analytical functions	en
dc.subject.other	Bridging law	en
dc.subject.other	Cohesive element	en
dc.subject.other	Cohesive zone model	en
dc.subject.other	Commercial software	en
dc.subject.other	Crack extension	en
dc.subject.other	DCB	en
dc.subject.other	Delamination fracture	en
dc.subject.other	Double cantilever beam	en
dc.subject.other	Fracture process zone	en
dc.subject.other	Fracture test	en
dc.subject.other	Glass fiber composites	en
dc.subject.other	Interface finite element	en
dc.subject.other	J-integral approach	en
dc.subject.other	Material property	en
dc.subject.other	Mode I fracture	en
dc.subject.other	Opening displacement	en
dc.subject.other	Pre-cracks	en
dc.subject.other	R-curves	en
dc.subject.other	Traction-separation	en
dc.subject.other	Traction-separation law	en
dc.subject.other	ABAQUS	en
dc.subject.other	Cantilever beams	en
dc.subject.other	Computer simulation	en
dc.subject.other	Crack propagation	en
dc.subject.other	Crack tips	en
dc.subject.other	Cracks	en
dc.subject.other	Data reduction	en
dc.subject.other	Delamination	en
dc.subject.other	Fracture testing	en
dc.subject.other	Glass fibers	en
dc.subject.other	Interfaces (materials)	en
dc.subject.other	Separation	en
dc.subject.other	Software testing	en
dc.subject.other	Steel sheet	en
dc.subject.other	Traction (friction)	en
dc.subject.other	Fracture	en
dc.title	Determination of the fracture process zone under Mode i fracture in glass fiber composites	en
heal.type	journalArticle	en
heal.identifier.primary	10.1177/0021998311401934	en
heal.identifier.secondary	http://dx.doi.org/10.1177/0021998311401934	en
heal.publicationDate	2012	en
heal.abstract	This study provides a simple yet effective procedure for the characterization of the fracture process zone (FPZ) developing in the interface of unidirectional laminates under Mode I delamination fracture. Double cantilever beam (DCB) coupons have been manufactured and tested. Three data reduction schemes available in the literature have been utilized for the calculation of the energy release rate (ERR) magnitude as a function of crack extension and the corresponding R-curves have been constructed. The R-curves were then reconstructed in terms of the experimentally registered pre-crack tip opening displacement (σ*) and analytical functions have been used to describe their concatenate trend. The J-integral approach was then applied over the analytical functions to derive the corresponding bridging laws that describe the FPZ. The derived bridging laws were appropriately modified according to three different traction-separation models and implemented into user-developed interface finite elements (UEL) for the simulation of the fracture tests in ABAQUS commercial software. Comparisons between numerical and experimental results have shown that the proposed straightforward procedure leads to an effective traction-separation law that can be used as a material property of the modeled interface. © The Author(s) 2011.	en
heal.journalName	Journal of Composite Materials	en
dc.identifier.doi	10.1177/0021998311401934	en
dc.identifier.volume	46	en
dc.identifier.issue	1	en
dc.identifier.spage	27	en
dc.identifier.epage	41	en