On the relationship between normal load and friction force in pre-sliding frictional contacts. Part 2: Experimental investigation

De Moerlooze, Kris; Al-Bender, Farid

doi:10.1016/j.wear.2010.02.008

On the relationship between normal load and friction force in pre-sliding frictional contacts. Part 2: Experimental investigation

Author:

De Moerlooze, Kris

Al-Bender, Farid

Keywords:

Science & Technology, Technology, Engineering, Mechanical, Materials Science, Multidisciplinary, Engineering, Materials Science, Sliding friction, Contact mechanics, DYNAMIC-BEHAVIOR, DRY FRICTION, MODEL, COMPENSATION, SYSTEMS, 0910 Manufacturing Engineering, 0912 Materials Engineering, 0913 Mechanical Engineering, Mechanical Engineering & Transports, 4016 Materials engineering, 4017 Mechanical engineering

Abstract:

When a tangential force is exerted on one of a pair of contacting bodies, the pre-sliding regime is traversed, before an object grossly slides. This paper is dedicated to the experimental investigation of the relation between the normal load and the friction force during the pre-sliding regime up to the point of sliding. For this purpose, a previously developed linear tribometer is used. A parametric model equation is constructed to fit adequately the measured hysteresis data. Thereafter, a parameter study is conducted to identify the influence of the normal load on the equation's parameters. The results confirm the theoretical trend (presented in Part 1) that the coefficient of friction decreases, and the pre-sliding distances increases with increasing normal load, for a variety of contacting surfaces. © 2010 Elsevier B.V.