| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 767212 | Engineering Fracture Mechanics | 2012 | 10 Pages |
A probabilistic analysis on damage tolerance of turbine disk based on experimental data was performed in this paper. Firstly, the fatigue crack growth rate tests at 600 °C on 30 compact tension specimens were conducted to investigate the fatigue crack growth characteristics. Experimental results showed that crack growth life appeared great dispersancy. Then a stochastic fatigue crack growth model was proposed and the probability of random crack growth time to reach a specified crack size as well as the distribution function of crack size at the service time could be obtained. At last, considering the uncertainties, probabilistic analysis on the crack growth life of a turbine disk was achieved.
► Crack growth tests on 30 compact specimens were performed at 600 °C. ► A stochastic crack growth model of GH4133B superalloy was established. ► Probabilistic damage tolerance analysis on turbine disk was performed. ► The experimental data of GH4133B superalloy is available.
