Abstract
A U-shaped stress relief groove was developed to enhance fretting fatigue strength. The effects of the groove on crack initiation location and life were evaluated using the finite element method and the critical plane method. The results demonstrated that by varying the geometry parameters of the groove, the crack initiation location was altered between the contact zone and the groove. When the damage in both the contact zone and the groove was comparable, the life of fretting crack initiation was increased by up to 3.5 times compared with that of the non-grooved specimen. These findings were expected to propose a potential strategy for enhancing the material's resistance to fretting fatigue by designing a groove near the contact zone and to provide insights into the development of components with improved fatigue resistance.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
