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Advances in Tribology
Volume 2011 (2011), Article ID 613581, 6 pages
http://dx.doi.org/10.1155/2011/613581
Research Article

Friction Experiments for Dynamical Coefficient Measurement

Laboratoire de Physique et Mécanique des Matériaux, FRE CNRS 3236, Ile du Saulcy, 57045 Metz Cedex 01, France

Received 30 November 2010; Revised 1 February 2011; Accepted 10 May 2011

Academic Editor: Dae Eun Kim

Copyright © 2011 J. J. Arnoux et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

An experimental study, including three experimental devices, is presented in order to investigate dry friction phenomena in a wide range of sliding speeds for the steel on steel contact. A ballistic setup, with an air gun launch, allows to estimate the friction coefficient between 20 m/s and 80 m/s. Tests are completed by an adaptation of the sensor on a hydraulic tensile machine (0.01 m/s to 3 m/s) and a pin-on-disk tribometer mounted on a CNC lathe (1 to 30 m/s). The interactions at the asperity scale are characterized by a white light interferometer surface analysis.