Probabilistic Distribution of Penetration and Break Fatigue Life of Surface Crack

표면크랙의 관통 및 파단 피로수명의 확률분포

A method of prediction for the fatigue life of surface crack, that is, initial cracks grow and penetrate through the thickness, was presented in the previous study of the author. Effects of parameters such as the initial crack length, material factors, etc., for the life were discussed. In this paper, the probabilistic distribution of the life is calculated. Effects of the distribution of parameters for the distribution of life were also discussed.