Mechanical properties of Raphanus sativus L. seeds

The objective of this study is to determine the effect of moisture content on rupture strength, maximum strength, and rupture deformation for fixed deformations, and determine the proportional deformation modulus of seeds of Raphanus sativus subjected to compressive loading. Seeds with a moisture co...

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Bibliographic Details
Published in:Ciência agronômica 2018-07, Vol.49 (3), p.437-442
Main Authors: Sousa, Kelly Aparecida de, Resende, Osvaldo, Ullmann, Renan, Smaniotto, Thaís Adriana de Souza
Format: Article
Language:English
Subjects:
AGRONOMY
Creep rupture strength
Deformation
Deformation effects
Deformation module
Food processing industry
Mechanical properties
Modulus of deformation
Moisture content
Parallel plates
Radish
Raphanus sativus
Rupture
Seeds
Water content
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Summary:The objective of this study is to determine the effect of moisture content on rupture strength, maximum strength, and rupture deformation for fixed deformations, and determine the proportional deformation modulus of seeds of Raphanus sativus subjected to compressive loading. Seeds with a moisture concentration of 0.31, 0.18, 0.12, 0.08, and 0.05 decimal (dry basis, d.b.) were maintained in the natural resting position and were subjected to uniaxial compressive loading between two parallel plates at an application rate of 0.002 m s-1. The rupture strength necessary to deform the seeds was increased from 15.03 to 27.08 as moisture levels decreased. Deformation was increased from 0.12-3 m to 0.15 × 10-3 m as moisture content decreased. The maximum rupture strength and proportional deformation modulus in fixed deformations were increased as moisture concentration decreased.
ISSN:1806-6690
0045-6888
1806-6690
DOI:10.5935/1806-6690.20180049