F-1708 BWR環境中における炭素鋼の疲労き裂進展速度参照曲線の提案(S59-3 規格基準の高度化に関連する研究・開発状況(3))(S59 規格基準の高度化に関連する研究・開発状況)

概要

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To propose the reference curve on fatigue crack growth rate for carbon steels in BWR water environment, the fatigue crack growth tests were conducted using CT specimens and flat plate specimens with surface crack. The effects of some parameters such as stress ratio and rise time on fatigue crack growth property can be estimated in quantitative by fatigue crack growth tests. The fatigue crack growth property was formulated with upper slope curve, second slope curve and threshold curve determined by test results. The formulated fatigue crack growth property was proposed as the reference curve on fatigue crack growth for carbon steels in BWR water environment in the related rules for fitness-for-service for nuclear power plants. The present research was carried out by JAPEIC as one of research works entrusted by the Ministry of Economy, Trade and Industry (METI).
社団法人日本機械学会の論文
2001-08-22