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Effect of velocity on roll/slip for low and high load conditions in polymer composite
Sukumaran, J.; Ando, M.; Rodriguez, V.; De Baets, P. (2011). Effect of velocity on roll/slip for low and high load conditions in polymer composite, in: Van Wittenberghe, J. (Ed.) Contact mechanics of materials and components. pp. 122-127
In: Van Wittenberghe, J. (Ed.) (2011). Contact mechanics of materials and components. Sustainable Construction & Design, 2(1). Ghent University, Laboratory Soete: Ghent. ISBN 9789490726010. , more
In: Sustainable Construction & Design. Laboratory Soete of Ghent University: Ghent. ISSN 2032-7471, more

Available in Authors 
Document type: Conference paper

Authors  Top 
  • Sukumaran, J., more
  • Ando, M.
  • Rodriguez, V., more
  • De Baets, P., more

Abstract
    In the last decade polymer composites are often used without lubrication on both low and high speed applications. Some of the application areas are marine, automotive and agriculture used as bearings and cams where roll-slip is the dominant mechanism. Limited studies are made for composites relating such applications where rolling/sliding condition influences the tribological behavior of the material. Investigating the roll-slip phenomenon for identifying the influence of velocity on frictional behavior can mark a boundary to map the use of composites with respect to its application. Moreover, the design of the material can be optimized to match the operating conditions. In the current research the polymer composite (with polyester matrix) has been tested under rolling-sliding condition for two different loads with 61N and 210N and with different speeds ranging from 10 rpm to 700 rpm. Ideal conditions in terms of roughness, slip ratio, surface temperature and ambient temperature were maintained to reduce the frictional heating. Using a 20% slip ratio the behavior of the material was observed for the tribological characteristics where the rate of increase of friction force follows a exponential pattern with increasing speeds. Nevertheless, on testing with high speeds a steady rate of increase in the friction curve was observed. Friction behavior of composites under different speeds is briefed with the microstructural characteristics for low and high loads.

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