Layered composite and contact layer. Normal separation and transversal strength

Abstract

As well as testing adhesion joints, in which the average adhesion shear strength is measured, there are widespread methods of testing for normal separation, in which the value called transversal strength is measured. This value is calculated as the ratio of the breaking load applied perpendicular to the gluing plane, to the gluing area. At the same time, two types of tests for normal separation - for cylindrical and prismatic joints - are now standardized. The article deals with the solution of this problem for prismatic compound obtained on the basis of the contact layer model.