Proceedings of the Korea Committee for Ocean Resources and Engineering Conference (한국해양공학회:학술대회논문집)
- 2001.10a
- /
- Pages.232-237
- /
- 2001
Effect of Specimen Thickness by Simulation of Probabilistic Fatigue Crack Growth
- Kim, Seon-Jin (School of Mechanical Engineering, Pukyong National University)
- Published : 2001.10.01
Abstract
The evaluation of specimen thickness effect of fatigue crack growth life by the simulation of probabilistic fatigue crack growth is presented. In this paper, the material resistance to fatigue crack growth is treated as a spatial stochastic process, which varies randomly on the crack surface. Using the previous experimental data, the non-Gaussian(eventually Weibull, in this report) random fields simulation method is applied. This method is useful to estimate the probability distribution of fatigue crack growth life and the variability due to specimen thickness by simulating material resistance to fatigue crack growth along a crack path.
Keywords
- Probabilistic fatigue crack growth;
- Specimen thickness;
- Spatial stochastic process;
- Probability distribution;
- Weibull probability paper;
- Simulation