Abstract
The problem of the effect of normal load on the temperature and velocity dependence of the force of friction is examined for rubbers based on SKN-18, SKN-26, and SKN-40. In the temperature range from 18°–100°C the force of friction for these rubbers falls linearly with increase in temperature. The effect of loads up to 107N/cm2 on the temperature dependence of the force of friction for SKN-18, SKN-26, and SKN-40 rubbers reduces to a change in the real contact area or an increase in the temperature dependence with increase in load.
The velocity dependence of the force of friction for SKN-18 rubber reveals a weak dependence of the activation energy and the average "jump distance" of the molecular chains on specific load. In the low-velocity region the force of friction depends linearly on the logarithm of velocity, at velocities above 0.44 cm/min and pressures of 30×105 N/cm2 the force of friction increases sharply due to an increase in uncontrolled heating of the friction surfaces.
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Mekhanika Polimerov, Vol. 1, No. 4, pp. 123–129, 1965
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Bartenev, G.M., Lavrent'ev, V.V. & Konstantinova, N.A. Effect of normal load on the temperature and velocity dependence of the force of friction for high-elastic materials. Polymer Mechanics 1, 70–73 (1965). https://doi.org/10.1007/BF00858898
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DOI: https://doi.org/10.1007/BF00858898