講演情報
[24008-13-05]水素影響による鋼材の延性低下を考慮した疲労亀裂進展寿命予測手法（シンポジウム講演概要）
*中村 源太1、桐生 泰輔1、フィンカト リカルド2、堤 成一郎1 (1. 大阪大学、2. パドヴァ大学)
キーワード：
水素、疲労、亀裂進展、延性
Prediction method of fatigue crack growth rate in both air and hydrogen gas environment is proposed. The rapid acceleration of fatigue crack growth rate in hydrogen environment was successfully reproduced by introducing a novel criterion based on ductile strain. The influence of hydrogen gas pressure on the acceleration starting position of fatigue crack growth rate needs to be further investigated.