抄録
Recently, adhesive bonding has been used in functional composite structures. Purpose of this study is to clarify the characteristics of bending strength for adhesively single-lap joints with both adherends, "unidirectional CFRP laminates" and "metal materials". We analyzed four types of adhesively single-lap joints subjected to 3-point bending moment by Finite Element Method. In addition, failure loads of various adhesive joint specimens were measured. By comparing the results of four different types of joints, we obtained conclusions as follow. Under all joint combinations, each stress component and maximum principal stress distribution at adhesive layer were singular behavior, and indicated maximum stress value at edge in longitudinal direction. Maximum stress value at adhesive layer using SS400 as material of one side adherend proved to be the lowest in the four kinds of joint combination. From the experimental results, it was found that bending strength increase as Young's modulus of lower side adherend decrease.
