抄録
In the previous paper the author studied the statistical aspects of fatigue fracture. In this paper as a fundamental case experiments were carried out under the reversed tension and compression fatigue test. From the results the fluctuations of the number of repeated cycles to fracture were found to have marked characteristics, which are basic features of fatigue fracture. Theoretically the problems were treated as successive events such as of damage and fracture from the standpoint of the stochastic theory, and the theory is in good agreement with these experiments. Attempt has been made to interprete the physical meaning of the transition probability from the standpoint of rate process theory, and it seems to be understood as the reaction rate.
