Life Prediction Considering Creep and Stress Relaxation for Gas Turbine Engine Hot Section

Accounting for creep and stress relaxations long-term life and low cycle fatigue life prediction method for gas turbine engine hot section is established. The long-term life and low cycle fatigue life of low pressure turbine blade for an aeroengine under real loading spectrum is analyzed by using this method. The results show that the established life prediction method is feasible.