Reversible Rail Shear Apparatus Applied to the Study of Woven Laminate Shear Behavior

Abstract : The multitude of in-plane shear tests existing in the literature seems to demonstrate the complexity of developing a test adapted to all experimental works. In a general framework of investigation of translaminar cracks in thin laminates, a test able to reproduce a pure in-plane shear loading was required. The laminate studied is notably employed as helicopter blade skin, and cyclic torsion induced by aerodynamic load involves cyclic in-plane shear. This particular application established some specifications for the test needed to carry out this study. To comply with them, an original technological solution has been developed from a three-rail shear test apparatus. This paper describes the resulting “reversible rail shear test” solution and its application to the study of in-plane shear behavior of a thin glass-epoxy laminate. The results concern plain and notched coupons under quasi-static loading, and crack growth tests under cyclic loading.
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Thomas Rouault, Christophe Bouvet, Vincent Nègre, Patrice Rauch. Reversible Rail Shear Apparatus Applied to the Study of Woven Laminate Shear Behavior. Experimental Mechanics, Society for Experimental Mechanics, 2013, 53 (8), pp.1437-1448. ⟨10.1007/s11340-013-9731-8⟩. ⟨hal-01851613⟩

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