Abstract
Although several empirical wear formulas have been proposed, theoretical approaches for predicting surface topography evolution during sliding wear are limited. In this study, we propose a novel wear-prediction method, wherein the energy-based Arrhenius equation is combined with a mixed elastohydrodynamic lubrication (EHL) model to predict the point-contact wear process in mixed lubrication. The surface flash temperature and contact pressure are considered in the wear model. Simulation results are compared with the experimental results to verify the theory. The surface topography evolutions are observed during the wear process. The influences of load and speed on wear are investigated. The simulation results based on the Arrhenius equation relationship shows good agreement with the results of experiments as well as the Archard wear formula. However, the Arrhenius equation is more accurate than the Archard wear theory in some aspects, such as under high-temperature conditions. The results indicate that combining the wear formulas with the mixed EHL simulation models is an effective method to study the wear behavior over time.
Highlights
Sliding wear is one of the main causes of mechanical component failure
A new wear prediction approach based on the energy relationship first proposed by Arrhenius has been evaluated in this study
The following conclusions can be drawn: 1) The mixed elastohydrodynamic lubrication (EHL) wear model based on the Arrhenius relationship is effective, and it can accurately predict wear evolution
Summary
Sliding wear is one of the main causes of mechanical component failure. Among the empirical formals, the Archard wear law [2] is the most accurate for predicting adhesive sliding wear. According to the Archard theory, wear has a simple linear relation to load, relative sliding distance, and the hardness of the material. Combining the Archard theory with contact mechanic formulas has been proven to effectively predict wear [3]. This theory is consistent with the wear results in engineering, it cannot explain how the material is removed, and it is independent of temperature. Gotsmann and Lantz [5] showed that the Archard wear law may not be the best method to explain single asperity wear behavior, and they believed that wear is related to energy
Sign-in/Register to view highlights & summary 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
