Effects of blades types on shear force and energy requirement of paddy stem

Abstract

This study was aimed to determine of the shearing force and shearing energy of paddy stem as a function of bladetype, blade-edge angle and cutting speed. The Karacadag white paddy variety was used as plant materials. Shearingproperties were measured by a universal testing machine. Depend on measured shear force and cross-section area ofpaddy stem, energy values were calculated by measuring the surface area under the cutting force-deformation curvefor each test separately. The tests were conducted at five blade angles, five loading speed with various three differenttype blades. The tests results showed that the shearing force, shearing strength, shearing energy, specific shearingenergy and extension at maximum load were affected significant (p