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Effects of moisture content, internode position and loading rate on the bending characteristics of barley straw

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  • H. Tavakoli
  • S.S. Mohtasebi
  • A. Jafari

Abstract

This study was conducted with the aim to evaluate the effects of the moisture content, internode position, and loading rate on the bending characteristics of barley straw including bending stress and Young's modulus. In the study, 9 treatments were performed as randomised complete block design with 5 replications. The characteristics were determined at three moisture levels: 10%, 15%, and 20% wet basis, three loading rates: 5, 10, and 15 mm/min, and free internodes: the first, second, and third internodes. The results showed that both the bending stress and Young's modulus decreased with an increase in the moisture content and towards the third internode position. The average bending stress was obtained as 8.41 MPa varying from 6.32 to 12.41 MPa, while the average Young's modulus was calculated as 473.88 MPa ranging from 330.94 to 618.91 MPa. As shown by the results obtained, the values of the characteristics increased with increasing loading rate.

Suggested Citation

  • H. Tavakoli & S.S. Mohtasebi & A. Jafari, 2009. "Effects of moisture content, internode position and loading rate on the bending characteristics of barley straw," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 55(2), pages 45-51.
    • Handle: RePEc:caa:jnlrae:v:55:y:2009:i:2:id:26-2008-rae
    DOI: 10.17221/26/2008-RAE
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    References listed on IDEAS

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    1. S. Grundas & G. Skubisz, 2008. "Physical properties of cereal grain and rape stem," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 54(2), pages 80-90.
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    Cited by:

    1. Vladimir Shepelev & Sergey Shepelev & Zlata Almetova, 2018. "Method of justification of the grain cleaning assembly performance," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 64(3), pages 115-120.

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