An analysis on overall crack-number-density of short-fatigue-cracks
Data(s) |
1999
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Resumo |
The evolution of dispersed short-fatigue-cracks is analysed based on the equilibrium of crack-number-density (CND). By separating the mean value and the stochastic fluctuation of local CND, the equilibrium equation of overall CND is derived. Comparing with the mean-field equilibrium equation, the equilibrium equation of overall CND has different forms in the expression of crack-nucleation-rate or crack-growth-rate. The simulation results are compared with experimental measurements showing the stochastic analyses provide consistent tendency with experiments. The discrepancy in simulation results between overall CND and mean-field CND is discussed. |
Identificador | |
Idioma(s) |
英语 |
Palavras-Chave | #力学 |
Tipo |
期刊论文 |