Cyclic calculations and life estimation in thermomechanical fatigue

Farida Azzouz (1) , Georges Cailletaud (1) , Jean Louis Chaboche (2) , Elisabeth Ostoja-Kuczynski (3) , Stéphane Quilici (1)

1 CDM - Centre des Matériaux
2 ONERA - The French Aerospace Lab [Palaiseau]
3 Turbomeca

The present paper describes a new numerical procedure devoted to the calculation of aeronautic engines and to the fatigue life assessment evaluation. The original aspects consists (1) in a new method used to determine the mechanical steady state of a structure under thermomechanical loading, (2) in a short review of an advanced fatigue model which can reproduce the Woehler curve, including the influence of the mean stress.

Domaines: Matériaux

Farida Azzouz, Georges Cailletaud, Jean Louis Chaboche, Elisabeth Ostoja-Kuczynski, Stéphane Quilici. Cyclic calculations and life estimation in thermomechanical fatigue. 9th International conference on multiaxial fatigue and fracture, Jun 2010, Parme, Italy. pp.785-793. ⟨hal-00905549⟩