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Damage tolerance assessment by bend and shear tests of two multilayer composites: Glass fibre reinforced metal laminate and aluminium roll-bonded laminate

AuthorsCepeda-Jiménez, C.M.; Alderliestenb, R. C.; Ruano, Oscar Antonio; Carreño, Fernando
KeywordsA. Aluminium alloys
A. Laminates
B. Delamination
B. Interfacial strength
C. Fracture mechanisms
Issue DateMar-2009
CitationComposites Science and Technology 69 (3-4) : 343-348 (2009)
AbstractThe damage tolerance of an aluminium roll-bonded laminate (ALH19) and a glass fibre reinforced laminate (GLARE) (both based in Al 2024-T3) has been studied. The composite laminates have been tested under 3-point bend and shear tests on the interfaces to analyze their fracture behaviour. During the bend tests different fracture mechanisms were activated for both laminates, which depend on the constituent materials and their interfaces. The high intrinsic toughness of the pure Al 1050 layers present in the aluminium roll-bonded laminate (ALH19), together with extrinsic toughening mechanisms such as crack bridging and interface delamination were responsible for the enhanced toughness of this composite laminate. On the other hand, crack deflection by debonding between the glass fibres and the plastic resin in GLARE, was the main extrinsic toughening mechanism present in this composite laminate
Publisher version (URL)http://dx.doi.org/10.1016/j.compscitech.2008.10.010
Appears in Collections:(CENIM) Artículos
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