Calculation Approach for the Design of Adhesive Joints under Predominant Peel

There are currently different bonded joint geometries that the designer can choose from, including the single-lap joint, double-lap joint, stepped-joint, scarf joint, and tubular joint. Other geometries are designed to sustain peel loads, such as T-joints and L-joints. T-joints are used in different scenarios, including in aircraft (stiffener/skin joints) and in vehicles (B-pillar/rocker joints). The present work consists of a numerical analysis on the adhesive type effect in aluminium T-joints under peel loads, by cohesive zone modelling (CZM). However, CZM validation is previously accomplished. The joints’ assessment initiates with stress analysis, and prediction of maximum load (Pm), while geometrical modifications are also tested, to enable proposing the best solution for the joint. CZM revealed to be an accurate tool for these joints, and a significant geometric and adhesive influence was detected on the joint performance, which enabled to propose the best joint solution.