Criterion of Interfacial Fracture on Tensile Adhesive Joint

TLDR: In this article, the Mises hypothesis was applied to the tensile adhesive joint as the fracture criterion and the ultimate tensile properties of the joint were found to be associated with the viscoelastic nature of the adhesive rather than with a thermodynamic criterion.

Abstract: The present investigation was undertaken to verify the criterion of the interfacial bond failure. The time-temperature superposition, the failure envelope, the dependence of the tensile bond strength on the degree of crystallinity and the fractography of the interfacial region of the adhesive were observed by the use of steel-nylon 12-steel cross lap joint. The ultimate tensile properties of the joint were found to be associated with the viscoelastic nature of the adhesive rather than with a thermodynamic criterion. The experimental results suggest that the Mises hypothesis can be applied to the tensile adhesive joint as the fracture criterion.