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Notched tensile strength of various fibre reinforced metal laminates

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Modifications in Whitney-Nuismer (WN) fracture models known as the point stress criterion and the average stress criterion are proposed for notched strength estimations of laminates. Applicability of the proposed procedure is examined by considering the residual strength data on carbon fibre reinforced metal laminates, aramid reinforced aluminium laminates and glass fibre reinforced aluminium laminates having saw-cuts and circular holes of various sizes. The analytical results obtained in the present study are close to the test results. This study confirms that the present modification in WN fracture models for fibre reinforced composites can be used for notched strength evaluation of FRMLs.

Keywords: Fibre reinforced metal laminates; average stress criterion; circular hole; notched tensile strength; point stress criterion; saw-cut; stress intensity factor

Document Type: Regular Paper


Publication date: September 1, 2000

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