RELIABILITY ANALYSIS OF DIRECTIONALLY-SOLIDIFIED TURBINE BLADE

This paper is based on stress analysis of directionally solidified turbine blade with the Finite Element Method.The reliability analysis method with a simple failure model is proposed.The failure function is established by Hill Criterion.The second order moment method and Hasofer Lind method for multiple random variables and nonlinear failure function are used to find the failure point and reliability of the failure model.The methods are checked by Monte Carlo method.