| Abstract: | The stochastic model for describing the statistical length distribution of dispersed cracks over a given time interval was
developed. The parameters of crack length and rate distributions at the beginning of the time internal and the intensity of
crack initiation per unit surface area were used as the initial data for the numerical representation of this stochastic model.
The model was used to obtain time-predicted crack size distributions and the distributions of remnant life to the initiation
of the crack of a maximum admissible length for the initial exponential flaw length and growth rate distributions. Experimental
investigations confirmed that small surface crack growth rate distributions under low-cycle loading of and éI698VD nickel-based
alloy corresponded to the exponential one.
Kiev International University of Civil Aviation, Kiev, Ukraine. Translated from Problemy Prochnosti, No. 4, pp. 59–67, July–August,
1999. |
