F-1702 一次+二次応力評価の代替基準案及び現基準の検証(S59-1 規格基準の高度化に関連する研究・開発状況(1))(S59 規格基準の高度化に関連する研究・開発状況)

概要

論文の詳細を見る
With an increase in the use of Finite Element Method (FEM), it has been brought to attention that conventional stress classification does not work well in certain cases. Since the Committee on Three Dimensional FEM Stress Evaluation (C-TDF) was established in 1994, several studies have been made for finding alternative criteria suitable for direct use in FEM analysis. In the C-TDF, primary plus secondary stress limits are now under consideration and two alternative criteria were proposed. Cyclic plastic analyses of several models have been performed to verify the validity of these alternative criteria. Calculations of a nozzle under cold shock were reported by Okamoto et al. and the results showed that the calculations worked. This paper describes the evaluation results obtained from a conical support skirt model that proved to work well as an alternative criteria.
一般社団法人日本機械学会の論文
2001-08-22