Abstract
The method for rationalizing design and construction of welded steel structures, which join different materials and fabricate their members, is developed. In this case, it is important to clarify the mechanical behavior of members in the joining boundary. To prevent the failure of members with defects in the joining boundary, it is necessary to establish the technique evaluating the mechanical performances of their members, simply and quantitatively. In this study, taking up interface-notched tensile plates as a model of members with defects in the joining boundary, the simple method for evaluating the elasto-plastic strain of them are proposed, and the validity is verified throughout numerical tests of J-integral analyses by using the finite element method.
