K. Kishida
Composite numberTest methodComposite laminatesComposite materialMaterials scienceCompact tension specimenStrain energy release rateFracture (geology)Fracture mechanicsFracture toughness
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An impact fracture test method has been developed to measure fracture toughness under combined mode I/II loading using a center-cracked disk specimen. The test is executed in such a way that diametrical impact load are applied to the specimen, which is set with the crack inclining toward the direction of loading at a definite angle. Time variation of the energy release rate is accurately evaluated by the convolution integral based on the idea of the dynamic response function of the specimen. Dyn...
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