Novel experimental procedure and determination of full displacement fields of delaminating composite layer interfaces for evaluation of the mode II cohesive law

作者: Gergely Czél , Meisam Jalalvand , Michael R. Wisnom , Luis P. Canal , Carlos D. González

DOI: 10.1016/J.ENGFRACMECH.2015.06.060

关键词: Fracture testMode (statistics)Materials scienceLinear variable differential transformerStress levelShear (geology)LawHigh resolutionComposite numberUltimate tensile strengthComposite material

摘要: A novel mode II fracture test setup based on a simple tensile loading scenario with discontinuous ply specimen is proposed in the paper as first step towards determination of cohesive law composite layer interfaces. Key outputs procedure are full displacement fields obtained by correlation high resolution SEM images taken during in-situ tests. Analysis at subsequent stress levels allow for unique analysis damage zone and direct jumps across interface. The next phase work evaluation shear stresses interface necessary to determine law.

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