Analysis of fatigue crack growth under cyclic mode II + static biaxial compression

Mael Zaid (1) , Vincent Bonnand (2) , Vincent Chiaruttini (2) , Didier Pacou (2) , Véronique Doquet (1) , Pierre Depouhon (3)

1 LMS - Laboratoire de Mécanique des Solides
2 ONERA
3 Airbus Helicopters

Cracks initiated in gears by rolling contact fatigue are subjected to triaxial compression with cyclic shear. In order to determine the crack growth kinetics for such loading, cyclic shear tests with static biaxial compression were performed on bearing steel, and resulted in long cracks propagation in mode II, with many secondary branches which influences the crack growth rate. Simulations highlight the crack growth competition and the role of biaxial compression on the extensive coplanar growth observed experimentally.

Mots clés: friction; plasticity; Mode II; compression; fatigue crack growth; DIC

Domaines: Mécanique des structures [physics.class-ph]

Mael Zaid, Vincent Bonnand, Vincent Chiaruttini, Didier Pacou, Véronique Doquet, et al.. Analysis of fatigue crack growth under cyclic mode II + static biaxial compression. 15ème colloque national en calcul des structures, Université Polytechnique Hauts-de-France [UPHF], May 2022, 83400 Hyères-les-Palmiers, France. ⟨hal-03717580⟩