微小分布き裂の発生・成長・合体を伴う腐食疲労破壊過程のモンテカルロ解析モデル(<小特集>信頼性工学小特集)

概要

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The present paper proposes a new model of fatigue process for smooth unnotched materials; namely, a Monte Carlo simulation model in which the fatigue fracture process of smooth unnotched materials is composed of the initiation, growth and coalescence of randomly distributed small surface cracks. Based on the model proposed, an analysis was made by using the experimental results on the initiation and growth behavior of distributed cracks in corrosion fatigue of smooth unnotched HT 60 steel. In the analysis, the statistical nature of small cracks in their initiation sites, surface lengths and growth behavior were taken into consideration The proposed model and analysis may be applicable to the evaluation of fatigue damage accumulated in structures, and can be used in reliability analyses.
社団法人日本材料学会の論文
1984-01-15