Friction Measurement
Synonyms
Definition
In tribology, friction measurement involves the quantification of forces that resist relative motion between a solid and another substance, whether it is another solid, a mass of particles, or a fluid. Since friction exists in a wide variety of situations, there are literally hundreds, if not thousands of devices designed to quantify frictional resistance. Commonly, a dimensionless quantity, the friction coefficient or its equivalent, is used to represent the magnitude of the resistance to relative motion between bodies.
Scientific Fundamentals
In principle, friction measurement involves either the direct measurement of forces that resist relative motion between two or more bodies of matter or the indirect measurement of the effects of those forces, such as braking torque or the current draw to a motor that moves the surface of one body against another. In tribology, at least one body in the tribosystem is a solid, but more broadly, the resisting body...
References
- D.H. Alsem, M.T. Dugger, E.A. Stach, R.O. Ritchie, Micro-scale friction and sliding wear of polycrystalline silicon thin structural films in ambient air. J Microelectromech Syst 17(5), 1144–1154 (2008)CrossRefGoogle Scholar
- ASTM G115, Standard Guide for Measuring and Reporting Friction Coefficients, Annual Book of Standards, vol. 03.02, ASTM International, West Conshohocken, Pennsylvania, pp 492–503 (2008)Google Scholar
- P. Blau, Friction Science and Technology – From Concepts to Applications, 2nd edn. (CRC/Taylor and Francis, Boca Raton, FL, 2008). 440 ppCrossRefGoogle Scholar
- P.J. Blau, ASM Handbook, Vol. 18, Friction, Lubrication and Wear Technology (ASM International, Materials Park, 1992), 942 ppGoogle Scholar
- K.G. Budinski, Laboratory Testing Methods for Solid Friction, in ASM Handbook, Volume 18, Friction, Lubrication, and Wear Technology (ASM International, Materials Park, OH, 1992), p. 45Google Scholar
- K.G. Budinski, Guide to Friction, Wear, and Erosion Testing (ASTM International, West Conshohocken, PA, 2007). 132 ppGoogle Scholar
- D.M. Eissenberg, H.D. Haynes, Motor-current signature analysis, in ASM Handbook, Volume 18, Friction, Lubrication, and Wear Technology (ASM International, Materials Park, OH, 1992), pp. 313–318Google Scholar
- E. Gnecco, E. Meyer (eds.), Fundamentals of Friction and Wear on the Nanoscale (Springer Science, New York, 2007). 714Google Scholar
- W.G. Sawyer, K.J. Wahl, Accessing inaccessible interfaces: in situ approaches to materials tribology. MRS Bulletin 33(12), 1145–1148 (2008). Special Issue: In Situ TribologyCrossRefGoogle Scholar