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Static coefficients of friction for polyethylenes
Polymer Engineering & Science, 1966AbstractThe static coefficients of friction of solid polyolefins against metal surfaces has been determined as functions of pressure, temperature, and metal surface finish. The polymers studied were a low debsity (branched) polyethylene, a high density copolymer, and a high density (linear) polyethylene homocopolymer, and a high density (linear ...
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An eight-legged tactile sensor to estimate coefficient of static friction
2015 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2015It is well known that a tangential force larger than the maximum static friction force is required to initiate the sliding motion between two objects, which is governed by a material constant called the coefficient of static friction. Therefore, knowing the coefficient of static friction is of great importance for robot grippers which wish to maintain ...
, Wei Chen +6 more
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Experiments on the temperature coefficient of static friction
Proceedings of the Physical Society, 1941Angles of repose of metals have been measured under controlled vacuum conditions. Preliminary measurements were made at room temperature in air. As it was found that vibrations tended to reduce the angle of repose, they were eliminated. Naked metal surfaces were obtained for aluminium and cadmium by cleaning by volatilization in a high vacuum ...
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The Static Coefficient of Friction and the Area of Contact
Proceedings of the Physical Society. Section B, 1950An apparatus for measuring the static coefficient of friction has been designed in which the forces tending to disturb the contact area are minimized and which further enables the contact area to be viewed throughout the experiment. Application of a tangential load, less than that required to give limiting friction, has been shown to give rise to a ...
R C Parker, D Hatch
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Study of the static coefficient of friction of fishing cordage on a friction gear drum
Journal of Friction and Wear, 2010Fiction interaction of fishing cordage and a friction gear drum under the preliminary displacement on the contact arc by 40–720° is studied. In all experiments, similar pressure of the cordage on the drum surface is ensured. Formulas for the static coefficient of friction are obtained for any angle of the contact arc.
A. A. Nedostup, E. K. Orlov
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Oil-Immersed Static Coefficient of Friction — Definition and Methods of Determination
SAE Technical Paper Series, 1984<div class="htmlview paragraph">Dynamic end-point static and breakaway static coefficients of friction are defined. An automatic method of measuring breakaway static friction is described and results of empirical studies to determine effects of oil, surface pressure, and grooving patterns, on breakaway static friction values are presented.< ...
R. E. Grambo, R. E. Dowell, Ian Mackay
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Investigations of the coefficient of static friction diamond-like carbon films
Surface and Coatings Technology, 2003Hydrogenated amorphous carbon films or diamond-like carbon films have shown their outstanding tribological properties in many studies and in many applications. This is due to their extreme hardness, low coefficient of sliding friction (after some running-in time) and especially, their property to form a transfer layer on the counter-body of the ...
U. Müller, R. Hauert
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The Nature of the Static and Kinetic Coefficients of Friction
Journal of Applied Physics, 1951Experiments have been carried out to determine the transition between static and kinetic conditions when stationary metal surfaces are set into motion, a simple method being used which measures the energy that has to be given to one of the bodies to start it moving.
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The Influence of Surface Temperature on the Coefficient of Static Friction
The Physics Teacher, 2019Friction is one of the common forces that affect our everyday life and one of the oldest problems studied in physics. An interpretation of its nature is included in all general physics courses, in both high school and college. The desire and need to better understand it guided a long list of scientists who devoted themselves to the study of friction ...
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The Effect of Polish Maintenance on Static Coefficient of Friction
2004The static coefficient of friction (μs) of polishes, measured by the James machine and ASTM D2047, provides a measure of the inherent slip resistance of the polish film. When in use, polish films are invariably modified by traffic and routine maintenance procedures that could, theoretically, change the inherent slip resistance of the film.
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