An Experimental Study on Progressive Failure of Tooth-shaped Asperity Joints in Direct shear

Based on the direct shear test of double-asperity joints include two tooth-shaped asperities,the shear properties of double-asperity joints are analyzed according to the difference of two asperities' angles,and the failure mechanism of double-asperity joints and the effects to joints' failure mode and shear strength produced by the order of two asperities are discussed.