J041013 オーステナイト系ステンレス鋼の弾塑性解析に用いる繰返し応力-ひずみ線図([J04101]工業材料の変形と強度特性及びそのモデル化(1))

概要

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When an evaluation point shows plasticity, for instance, simplified elastic-plastic analysis can be applied in accordance with the JSME Design and Construction Code (Division 1, Light Water Reactor Code). However this method is known as conservative and elastic-plastic analysis with cyclic stress-strain relation should be performed to obtain an accurate fatigue usage factor. Therefore cyclic stress-strain relation has been developed for austenitic stainless steels. Cyclic stress-strain data were collected from several Japanese reports. Two types of relationship were employed. One is power law type and the other is Ramberg-Osgood type. Those relationships were converted to bilinear type relationships with considering appropriate margin.
一般社団法人日本機械学会の論文
2011-09-11