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Analysis of tangential curve equation describing mechanical behaviour of rapeseeds (Brassica napus L.) mixture under compression loading

Author

Listed:
  • D. Herák

    (Department of Mechanical Engineering, Faculty of Engineering, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • A. Kabutey

    (Department of Mechanical Engineering, Faculty of Engineering, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • M. Divišová

    (Department of Mechanical Engineering, Faculty of Engineering, Czech University of Life Sciences Prague, Prague, Czech Republic)

Abstract

The analysis of tangential curve equation for describing mechanical behaviour of rapeseeds (Brassica napus L.) mixture under compression loading were discussed. Parameters considered in this study include both measured and theoretical amounts of deformation, volume compression and deformation energy. The measured amounts denoted as true defor­mation, true volume compression and true deformation energy were determined directly from the compression test of the rapeseeds pressed mixture whiles the theoretical amounts expressed as max. deformation, max. volume compres­sion and max. deformation energy were determined by mathematical adjustment of the general tangent curve equation which were verified from the measured data. Also the theoretical amounts further explain the limit deformation, limit volume compression and relationship between strains and limit volume compressions which were statistically analysed to describe true situation of pressing. The results indicate that the tangent curve equation by mathematical modifica­tion can be used to determine accurately theoretical amounts of maximal deformation, maximal volume compression and maximal deformation energy.

Suggested Citation

  • D. Herák & A. Kabutey & M. Divišová, 2013. "Analysis of tangential curve equation describing mechanical behaviour of rapeseeds (Brassica napus L.) mixture under compression loading," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 59(1), pages 9-15.
    • Handle: RePEc:caa:jnlrae:v:59:y:2013:i:1:id:73-2011-rae
    DOI: 10.17221/73/2011-RAE
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    References listed on IDEAS

    as
    1. D. Herák & A. Kabutey & A. Sedláček & G. Gűrdil, 2011. "Tangent curve utilization for description of mechanical behaviour of pressed mixture," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 57(1), pages 13-18.
    2. A. Kabutey & D. Herák & A. Sedláček, 2011. "Behaviour of different moisture contents of Jatropha curcas L. seeds under compression loading," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 57(2), pages 72-77.
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    Cited by:

    1. M. Müller & Š. Horníčková & P. Hrabě & J. Mařík, 2015. "Analysis of physical, mechanical and chemical properties of seeds and kernels of Jatropha curcas," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 61(3), pages 99-105.

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