A strategy for the estimation of the fatigue life of notched components under random multiaxial fatigue

Georges Cailletaud (1) , Thibault Herbland (1) , B. Melnikov (2) , Andrei Musienko (2) , Stéphane Quilici (1)

1 CDM - Centre des Matériaux
2 State polytechnical university

This paper describes three new models that can be used (1) to determine the stress-strain response in stress concentration zones for components submitted to complex multiaxial loading paths, (2) to extract relevant cycle sequences from a general threedimensional loadin path, (3) to find the hypersphere enclosing any type of cyclic load history. These three models can be combined to post-process an elastic Finite Element Analysis, and provide a fast estimation of the fatigue life of the components.

Domaines: Matériaux

Georges Cailletaud, Thibault Herbland, B. Melnikov, Andrei Musienko, Stéphane Quilici. A strategy for the estimation of the fatigue life of notched components under random multiaxial fatigue. 9th International conference on multiaxial fatigue and fracture, Jun 2010, Parme, Italy. pp.769-776. ⟨hal-00905539⟩