FLD試験解析による破損クライテリアの検討

抄録

For the structural components which constitute a part of the boundary of the containment vessel (CV) in FBR plants, it is a very important issue if the function as the boundary is maintained or not in the case of severe accident (SA). In this case, the criteria of boundary penetration are matters beyond the design criteria. One of the authors has paid his attention to FLD (Forming Limit Diagram) which is broadly used in the field of press-forming of sheet metal. In this study the experiments for FLD and their simulation analyses are implemented focusing on the austenitic stainless steel which is one of the main materials used for the equipment of nuclear plants for the discussion on the adoptability of FLD to the criteria of boundary penetration.