Download e-book for iPad: Analyzing Friction in the Design of Rubber Products and by Robert Horigan Smith

By Robert Horigan Smith

ISBN-10: 0849381363

ISBN-13: 9780849381362

Taking a mechanistic technique that emphasizes the actual habit of rubber because it slides, Analyzing Friction within the layout of Rubber items and Their Paired Surfaces integrates the engineering and medical proof demonstrating that the legislation of steel friction don't practice to rubber. The ebook additionally offers a newly built, scientifically established unified thought of rubber friction that comes with a fourth uncomplicated rubber friction strength: floor deformation hysteresis.

With functions that phenomenologically deal with either static and dynamic rubber friction, the booklet deals useful counsel for enforcing the unified concept within the research and layout methods. using this idea permits accomplished calculations of rubber friction, thereby providing possibilities to augment public safeguard. whereas the speculation applies to all elastomeric items the place friction is an argument, the writer basically makes a speciality of:

•          examining friction within the layout of rubber tires and their contacted pavements

•          The geometric layout of roadways

•          motorized vehicle coincidence reconstruction

•          examining slip resistance within the layout of shoes and their contacted jogging surfaces

Supported by way of huge analytical facts, this publication info what rubber friction is and why it behaves how it does.

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Extra info for Analyzing Friction in the Design of Rubber Products and Their Paired Surfaces

Example text

5. , J. Wiley & Sons, New York, 1995. 6. , The atom-to-atom process in magnetic induction, Proc. Roy. , 3, 387–401, 1891. 7. , Atom-to-atom cohesion, Phil. , 6 (37), 697–712, 1928. 8. Brunauer, S. , Physical adsorption of gases and vapors on solids, in Proc. Symp. Properties of Surfaces, ASTM STP 340, Philadelphia, 1963, p. 59–79. 9. McFarlane, J. , Adhesion of solids and the effect of surface films, Proc. Roy. , A202, 224–244, 1950. 10. C. , Some mechanical and adhesive properties of indium, Br.

Gén. 4 Linking Rubber Friction to the Real Area of Contact In 1952, Schallamach [3] reported on the friction forces developed by sliding molded-rubber drag sleds on a smooth glass track. The sleds’ runners were roughened to preclude chattering. Schallamach [3] cited the work of Roth et al. [1] and focused on their finding that the coefficient of rubber friction decreases with increasing normal load. indb 19 2/13/08 3:01:18 PM 20 Analyzing Friction in the Design of Rubber Products and Their Paired Surfaces possibility that, analogously to metals, the friction force developed by rubber is proportional to the real area of asperity contact with the paired surface.

The surface energy lost by the paring balanced the stored elastic energy of deformation. 9 presents a generalized depiction of their findings involving hemispheres of radii R1 and R2. The inner (Hertz) circle of radius r assumes the absence of surface adhesion forces. 9 Generalized depiction of contact between hemispherical elastic solids under an applied normal load, F N, both in the presence and absence of surface adhesion forces. , Proc. Roy. Soc. indb 32 2/13/08 3:01:24 PM 33 Rubber Friction Mechanisms gies (γ) of the spheres.

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Analyzing Friction in the Design of Rubber Products and Their Paired Surfaces by Robert Horigan Smith

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