Abstract
Fretting fatigue is a complex problem and therefore it has generally been necessary to determine fatigue lives experimentally. This paper describes a method that integrates wear modelling with fretting fatigue analysis to permit the prediction of the effects of material removal, due to fretting wear, on fretting fatigue life. A finite element based method is employed to predict the fretting wear-induced evolution of contact geometry, contact stresses and a multiaxial fatigue damage parameter with cumulative damage effects, as a function of slip amplitude, for a laboratory fretting fatigue test arrangement. The results show that the approach is capable of capturing the experimentally observed effect of slip amplitude on fatigue life. The conditions simulated span across a range of partial slip and gross sliding conditions, corresponding to fretting fatigue tests available from the literature, and giving rise to the well-known phenomenon of a critical range of slip amplitude for reduced fatigue life. The methodology demonstrates that this is primarily due to wear-induced pressure redistribution, the nature of which is highly dependent on the slip regime.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.