高速炉機器設計のための非弾性解析に基づく評価手法の開発,2; 推奨構成モデルの概要

Development of evaluation method based on inelastic analyses for structural design of fast reactor components, 2; Summary of recommended inelastic constitutive models

岩田 耕司; 月森 和之; 笠原 直人; 川崎 信史 

Iwata, Koji; Tsukimori, Kazuyuki; Kasahara, Naoto; Kawasaki, Nobuchika

Inelastic analysis methods are expected to realize rational design of FBR (fast breeder reactor) components. Constitutive models play a key role in predicting inelastic behaviors of structures which are subjected to mechanical and thermal loads. Development of constitutive models which enable precise but certainly conservative prediction has been promoted, and guidelines for inelastic design analysis were proposed. The constitutive models currently recommended for the FBR-grade type 316 stainless steel (316FR) in the guidelines are outlined in this paper.