Numerical Studies of Adherend Thickness Influence on the Response of Single Lap Joint under Longitudinal Load

摘要

In this paper, a finite element model was developed to investigate the response of adhesively bonded joint under tensile load. Different adherend thicknesses were chosen to evaluate its influence on the stress state in the adhesive film. The results showed that adherend thickness have a significant influence on the stress state of the bond area. With adherend thickness increased from 2.5mm to 4mm, both maximum shear and peel stress at the edges of the joint diminished. The decrease of stresses was due to the higher stiffness with thicker adherent.