Mechanical properties of blueberry stems

Margus Arak, Kaarel Soots, Marge Starast and Jüri Olt
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Margus Arak: Institute of Technology, Estonian University of Life Sciences, Tartu, Estonia
Kaarel Soots: Institute of Technology, Estonian University of Life Sciences, Tartu, Estonia
Marge Starast: Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Tartu, Estonia
Jüri Olt: Institute of Technology, Estonian University of Life Sciences, Tartu, Estonia

Research in Agricultural Engineering, 2018, vol. 64, issue 4, 202-208

Abstract: In order to model and optimise the structural parameters of the working parts of agricultural machines, including harvesting machines, the mechanical properties of the culture harvested must be known. The purpose of this article is to determine the mechanical properties of the blueberry plant's stem; more precisely the tensile strength and consequent elastic modulus E. In order to achieve this goal, the measuring instrument Instron 5969L2610 was used and accompanying software BlueHill 3 was used for analysing the test results. The tested blueberry plant's stems were collected from the blueberry plantation of the Farm Marjasoo. The diameters of the stems were measured, test units were prepared, tensile tests were performed, tensile strength was determined and the elastic modulus was obtained. Average value of the elastic modulus of the blueberry (Northblue) plant's stem remained in the range of 1268.27-1297.73 MPa.

Keywords: agricultural engineering; blueberry; harvesting; mechanical properties; elastic modulus (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlrae:v:64:y:2018:i:4:id:90-2017-rae

DOI: 10.17221/90/2017-RAE

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