The Effect of Geometric Dimensions in the Adhesive and Adherent on the Reduction of Stress Concentrations

Abstract

In this article, a finite element analysis of the mechanical behavior of sizing problems posed by adhesive joints between adherents under loading is conducted to mathematically recreate the behavior of a real engineering system. In other words, the analysis must be based on a precise mathematical model of a physical prototype.

Many different methods are used to increase the strength of the adhesive joint, and one of these methods involves modifying the joint geometry. This study aims to enhance the joint strength by altering the joint geometry while maintaining the same adhesive area condition.

This leads us to disregard the mutual effects between normal and tangential stresses acting at the assembly interfaces. The detachment of overlapping adhesive joints between adherents is analyzed concerning the influence of the chosen interface failure criterion. In particular, to design a joint, it is necessary to determine the stress state within the adhesive joint.