MECHANICAL PROPERTIES OF WHEAT GRAINS

Abstract

Mechanical properties of three new varieties of Egyptian wheat grains Giza-168, Sakha-93 and Banisuif-1 were investigated at different levels of moisture content ranged between 8 to 19 % w.b. Mechanical tests including bulk and particle compression (stress-strain), particle shear and particle hardness were conducted to obtain grains properties. Statistical analysis was performed to obtain the regression coefficient between the studied properties and the moisture content of grains. Mechanical properties included hardness (kg), shear stress (MPa), initial elasticity modulus (MPa) for grains in bulk and in particle, elasticity modulus (MPa) for grains in bulk and in particle, maximum stress(MPa), bioyield point and breakage energy (kJ/m3).