Design Concepts for Peel-Dominant Adhesive Joints in Aeronautic Applications

The adhesive bonding technique is employed from the aeronautical/aerospace industry to current house products. To comply with requirements of distinct applications, different joint configurations are available designer. While single-lap joints (SLJ) most common in application and research, double-lap joints, scarf T-joints find specific applications. seldom studied literature, but these used, for instance, aircraft bond stiffener beams skin, or cars between B-pillar rocker. Due high stress concentrations, often fail under average stresses much lower than strengths, giving rise necessity proper design strength improvement methodologies. This work initially aims validate cohesive zone modelling (CZM) experiments, then use it numerically evaluate optimize performance subjected peel loads. CZM nowadays regarded as powerful prediction tool can be a valuable improve T-joints. Different features addressed complete analysis: type, geometrical parameters, dual-adhesive improvement, composite joints. evaluated parameters base adherend thickness (a), T-part (t), overlap length (l) curvature radius (r). As result this work, model was successfully validated, clear guidelines were provided define ideal geometric material (adhesive) conditions best performance.