27th Congress of International Council of the Aeronautical Sciences, 19 - 24 September 2010, Nice, France
Paper ICAS 2010-8.5.2

PROBABILISTIC ANALYSIS ON CRACK GROWTH LIFE OF TURBINE DISK UNDER LCF-CREEP THROUGH EXPERIMENTAL DATA

D. Y. Hu, R. Q. Wang, X. L. Shen
BUAA, China

Keywords: turbine disk, probabilistic analysis, stochastic crack growth model, lcf-creep

First, the FCCG rate tests on 30 specimens are carried out. Then the deterministic model is established and the stochastic FCCG models are proposed and verified. At last, considering random characteristics of material parameters and load, probabilistic analysis on crack growth life of turbine disk under LCF-creep is performed

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