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Publications (2/2 displayed)
- 2022Analysis of fatigue crack growth under cyclic mode II + static biaxial compression
- 2022Etude, modélisation et simulation de la fissuration en mode I + II de pièces de boîte de vitesse d'hélicoptères à gradient de propriété, en fatigue de roulement ; Investigation, modelling and simulation of mixed-mode fatigue crack growth induced by rolling contact in steel parts of helicopter gearbox with a surface gradient in mechanical properties
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conferencepaper
Analysis of fatigue crack growth under cyclic mode II + static biaxial compression
Abstract
International audience ; 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.