Res. Agr. Eng., 2007, 53(1):14-19 | DOI: 10.17221/2129-RAE

Static and kinetic friction of rapeseed

R. Rusinek, M. Molenda
Institute of Agrophysics, Polish Academy of Sciences, Lublin, Poland

he present paper examines the static and kinetic coefficient of friction of rapeseed. The project utilized two methods of determination of coefficient of friction of rapeseed: according Eurocode 1 (kinetic) in direct shear test and (static) in model silo. Samples of rapeseed in a range of moisture content from 6 to 15% w.b. were used and the tests were performed for galvanized steel, stainless steel and concrete B 30. Coefficient of friction for both steel types approached stable value for all levels of moisture content w.b. in a range from 0.11 to 0.18, for concrete B 30 it was found in a range from 0.25 to 0.43. The coefficient of static friction found in model silo decreased with an increase in vertical pressure from 0.3 to 0.2 for first loading, while in subsequent loading cycles decreased from 0.2 to 0.1.

Keywords: rapeseed; static friction; kinetic friction; galvanized steel; stainless steel; concrete B 30

Published: March 31, 2007  Show citation

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Rusinek R, Molenda M. Static and kinetic friction of rapeseed. Res. Agr. Eng. 2007;53(1):14-19. doi: 10.17221/2129-RAE.
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    References

    1. Eurocode 1 (2003): Basis of design and actions on structures. Part 4. Actions in silos and tanks. DD ENV 1991-4.
    2. Horabik J., Rusinek R. (2000): Determination of the stress ratio of plant granular solids. Part II. Experimental investigations. Acta Agrophysica, 37: 73-81.
    3. Laskowski J., Łysiak G., Skonecki S. (2005): Mechanical Properties of Granular Agro-materials and Food Powders for Industrial Practice. Part II. Institute of Agrophysics PAS, Lublin.
    4. Molenda M., Horabik J. (2005): Mechanical Properties of Granular Agro-Materials and Food Powders for Industrial Practice. Part I. Institute of Agrophysics PAS, Lublin.
    5. Molenda M., Thompson S.A., Ross I.J. (2000): Friction of wheat on corrugated and smooth galvanized steel surfaces. Journal of Agricultural Engineering Research, 77: 209-219. Go to original source...
    6. Mohsenin N.N. (1978): Physical Properties of Plant and Animal Materials. Gordon and Breach Science Publisher, New York-London-Paris.
    7. Ohlson R., Appelqvist L.A. (1972): Rapeseed. Cultivation, Composition, Processing and Utilization. Elsevier, Amsterdam-London-New York. Go to original source...
    8. Thompson S.A., Ross I.J. (1983): Compressibility and frictional coefficient of wheat. Transactions of the ASAE, 26: 1171-1176. Go to original source...

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