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Title: Mode III interlaminar fracture of carbon/epoxy laminates using the Six-Point Edge Crack Torsion (6ECT)
Author: Morais, A.B. de
Pereira, A.B.
Moura, M.F.S.F. de
Keywords: Polymer-matrix composites (PMCs)
Fracture toughness
Mechanical testing
Issue Date: 2011
Publisher: Elsevier
Abstract: The recently proposed Six-Point Edge Crack Torsion (6ECT) test was used to evaluate the mode III interlaminar fracture of carbon/epoxy laminates. Plate specimens with starter delaminations in 0/0, 0/90 and 0/45 interfaces were tested. Data reduction was performed with an effective crack scheme validated in a previous numerical study. The tests allowed the evaluation of fairly unambiguous initiation GIIIC values and of subsequent R-curves. Examinations of specimen cross-section showed considerable lengths of pure interlaminar propagation in specimens with starter delaminations in 0/90 and 0/45 interfaces. The latter specimens had the lowest initiation GIIIC values.
Peer review: yes
DOI: 10.1016/j.compositesa.2011.08.002
ISSN: 1359-835X
Appears in Collections:DEM - Artigos

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