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- W1988461189 abstract "Abstract A simple idealized model is considered, which predicts an interesting effect that appears not to have been stressed before. If two bodies whose surfaces are curved are in contact and in relative motion, with factional shear between them, then the force resisting the motion is equal to the sum of two terms. The first of these is the frictional shear integrated over the contact region; this is the usual result. The second term is the one of main interest. It depends upon the relative curvature and is negative. Interpreted as a statement about macroscopic contact of surfaces, this means that if curved bodies are in contact and relative motion then the effective coefficient of friction between them is the sum of the basic friction coefficient between the materials and a negative term depending on their relative curvature. Some observable consequences of this effect are discussed. The phenomenon also has relevance to the building of microscopic models of surface contact. This is also examined in some detail. The effect is a consequence of the fact that, even for symmetrically curved surfaces, the contact region is asymmetrical owing to the frictional shear. This gives rise to an extra force in the direction of motion. The argument assumes that the contact is predominantly linear elastic in nature. Viscoelastic effects tend to reduce and finally to cancel the effect described." @default.
- W1988461189 created "2016-06-24" @default.
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- W1988461189 date "1978-05-01" @default.
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- W1988461189 title "The effect of surface curvature on the friction coefficient" @default.
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- W1988461189 doi "https://doi.org/10.1016/0043-1648(78)90138-2" @default.
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