METHOD OF EVALUATING JOINING STRENGTH OF DOUBLE-LAP JOINT BODY

摘要

A method of evaluating the joining strength of a double-lap joint body (100) that is formed by lapping over each other three plate members including composite members (10) and restraining them at their side surfaces. The method has a step of determining allowable shear stress of the double-lap joint body (100) by a tensile test using test pieces with different restraint lengths (L), a step of determining shear stress of the double-lap joint body (100) by the finite element analysis method, and a step of comparing and evaluating the allowable shear stress and the shear stress. The method enables evaluation of the peeling strength of a joint where an adhesive layer cannot be clearly defined.