New PDF release: Fundamentals of Friction: Macroscopic and Microscopic

By David Tabor (auth.), I. L. Singer, H. M. Pollock (eds.)

ISBN-10: 9401052492

ISBN-13: 9789401052498

ISBN-10: 9401128111

ISBN-13: 9789401128117

Fundamentals of Friction, in contrast to many books on tribology, is dedicated to at least one particular subject: friction. After introductory chapters on clinical and engineering views, the following part comprises the required heritage in the components of touch mechanics, surfaces and adhesion. Then directly to fracture, deformation and interface shear, from the macroscopic habit of fabrics in frictional touch to microscopic types of uniform and granular interfaces. Lubrication by way of solids, beverages and gases is gifted subsequent, from classical move houses to the reorganization of monolayers of molecules lower than basic and shear stresses. a bit on new techniques on the nano- and atomic scales covers the physics and chemistry of interfaces, an array of visually intriguing simulations, utilizing molecular dynamics, of solids and drinks in sliding touch, and comparable AFM/STM experiences. Following a bit on machines and measurements, the ultimate bankruptcy discusses destiny concerns in friction.

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Extra resources for Fundamentals of Friction: Macroscopic and Microscopic Processes

Example text

Great friction variations at very light loads. In addition, in the past ten years a couple of specialized friction problems have arisen, in which the values of the friction coefficient cannot be readily explained by present theory, but it seems clear that in the absence of good theories difficult practical problems will surely arise. One problem relates to the friction of micromechanisms (motors, gears and other engineering components with weights in the microgram range). The other-relates to the performance of atomic force microscopes, in which sIding surfaces operate at loads in the nanogram range.

If we have a log-log plot in which y varies by 10% while x varies by a factor of 10, then the slope variation is only 4%, and in fact it is often hard to detect a slope of this modest magnitude unless the x parameter is changed by several orders of magnitude. However, even in those cases where the friction coefficient variations can· be detected and measured, this is generally something of no particular importance to anyone. 2. 1 FRICTIONAL OSCILLATIONS Variation of friction with velocity. Although I have stated the general rule that friction variations don't interest anybody there is only one exception, that involving velocity.

Acad. , 206-222, 1699. Coulomb, C. , The theory of simple machines (in French) Mem. Math. Phys. Acad. , 10, 161-331, 1785. , New Friction experiments carried out at Metz in 18311833, (in French), Mem. Acad. , 4, 1-128, 591-696, 1833. , Table 338 - Friction, Smithsonian Physical Tables, 9th Edition, Smithsonian Institution, Washington, 1954. Bowden, F. P. , Friction and Lubrication of Solids, Clarendon Press, Oxford, 1950. 2, 1965. , 14, 198-205, 1971. , Rightmire, B. , Tedholm, C. ~ and Williams, R.

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Fundamentals of Friction: Macroscopic and Microscopic Processes by David Tabor (auth.), I. L. Singer, H. M. Pollock (eds.)


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