Comparison of Mechanical Properties of Wheat and Barley Straw

hamed tavakoli, seyed saeid mohtasebi, ali jafari

Abstract


The objective of this work was to compare the mechanical properties of wheat and barley straw. The experiments were conducted at moisture contents of 10.24% and 10.76% w.b. for wheat and barley straw, respectively, and three internode positions down from the ear. The average shear strength for wheat and barley straw varied from 6.81 to 7.12 MPa and 3.90 to 4.49 MPa, respectively. The specific shearing energy of wheat and barley straw increased from 21.85 to 25.74 mJ/mm2 and 18.79 to 19.85 mJ/mm2, respectively, towards the third internode position. The bending stress and Young’s Modulus of wheat and barley straw increased towards the first internode position. The results showed that the mechanical properties of wheat and barley straw were statistically different.


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