Development of evaluation method in dissimilar material joint

Abstract

In this study, in order to evaluate the joining strength on dissimilar material joint, evaluation method using wedge was developed. hot rolled steel plate/ABS bonded joint was used in this study as a model joint. In the wedge test, increasing tip angle of wedge led to decreasing delamination load. From this result, it is considered that opening load applied in interface of bonded joint decreased with increasing tip angle of wedge, as a result, delamination load was decreased. Although testing equipment must be modified, it is possible that developed wedge test can evaluate the interfacial strength of dissimilar material bonded joint.