Evaluation of interfacial strength in dissimilar materials joint between surface modified A5052 and resin

Abstract

Three different resin materials were jointed with an aluminum alloy with surface modified. Strength of the joint depended on groove depth formed at the interface of aluminum alloy. Fracture morphology changed from pull-out mode to base material failure mode with increase in the groove depth. The critical groove depth at the transition point was different in the different joints. A new evaluation method of the interfacial strength was proposed by taking into account the transition behavior of the failure modes.