Critical Analysis of Coefficient of Friction Derivation Methods for Fretting under Gross Slip Regime

Abstract

This work presents a critical analysis of coefficient of friction derivation methods for fretting under gross slip regime. A mass review of tribology journals revealed that 41% of papers did not specify the derivation method used and 37% employed the least effective methods. Following an analytical and experimental study, the use of the geometric independent coefficient of friction method (GICoF) is suggested for gross slip regime due to its robustness, followed by the energy method (ECoF). This study highlights the importance of the correct selection of the coefficient of friction method and it quantifies potential errors.