705 高速炉配管における変位制御型座屈の制限に関する検討(OS10-(2) 発電機器の材料・構造解析と評価,オーガナイズドセッション)

概要

論文の詳細を見る
In Fast Breeder Reactor, dominant loading in the piping system is secondary stress due to thermal expansion. Therefore the structural design rule should prevent the buckling caused by deformation. In this study, the estimation of the buckling criteria for Mod. 9Cr-1Mo piping due to secondary stress was described. The FEM was used for estimating the buckling criteria due to secondary stress. Calculated buckling criteria were compared to the rule of buckling limit which was settled by the experimental rsults of deformatin-controlled buckling test in 316FR piping. As the results, this buckling rule could be adequate for the piping made of Mod. 9Cr-1Mo. To confirm the FEM evaluation, the deformation-controlled buckling test was operated in Mod. 9C-1Mo piping. This experimental result coincided with the calculated result of FEM. Consequently, those results indicate that evaluating the buckling criteria by FEM is appropriate for considering the buckling limit.
2009-08-25