Abstract
Properties of rice straw necessary for simulation of straw movement during the harvesting process were measured. The physical and mechanical properties measured in this study were: ultimate tensile strength, cross-sectional shear strength, internal shearing stress response, and pressure-density relationships during compression. The coefficient of friction was determined between rice straw and polished steel, UHMW polyethylene, and Teflon surfaces. These relationships form the basis for logic and equations which can be used to develop a mathematical model to simulate the dynamic movement of rice straw during the harvesting process.
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