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Title: Mixed mode II + III interlaminar fracture of carbon/epoxy laminates
Author: Morais, A.B. de
Pereira, A.B.
Keywords: Polymer-matrix composites (PMCs)
Fracture toughness
Finite element analysis (FEA)
Mixed mode
Issue Date: 2008
Publisher: Elsevier
Abstract: This paper reports a study of the mixed mode II + III fracture of carbon/epoxy laminates. The specimens used were six-point bending plates with cross-ply lay-up and the standard 0/0 interface. Finite element analyses (FEA) were performed to select specimen geometries suitable for measuring the initiation critical strain energy release rate Gc over a wide range of mode mix ratios. The main difficulties were the non-uniform distributions of GII and GIII and the considerable geometric non-linearity. Nevertheless, experimental results suggested a quasi-linear evolution of Gc with the GIII/G mode mix ratio consistent with previously measured GIIc values and expected GIIIc > GIIc.
Peer review: yes
DOI: 10.1016/j.compscitech.2008.02.023
ISSN: 0266-3538
Appears in Collections:DEM - Artigos

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