Estimating Poisson's Ratio and Young's Modulus of the Outer Fruit Shell of Corn Grain

The paper highlights the need of reducing damage caused to corn grain during cobs threshing. fruit shell can be eliminated by introducing limiting conditions and ensuring optimal parameters for threshing separating device operation. It has been confi rmed that patterns adequately described applying Hertzian elastic contact theory. ( Research purpose ) To obtain Poisson's ratio Young's modulus grain, whose surface is in direct with working bodies device. (Materials methods) One-factor-ata- time experiments were conducted subsequent statistical processing data array. was experimentally studied dent so fl int corn, sugar popcorn. Results discussion methods experimental equipment have developed determine grain. established a dence probability 0.95, average value equals 0.356. obtained following varieties: – 98-125 megapascals, 78-127 97-124 popcorn 127-169 megapascals. found out maximum permissible speed mode provided if interaction between pin does not exceed 1.6 meters per second. Conclusion ). proved more comprehensive application theory when modeling processes cobs, it necessary know outer numerical values these mechanical technological characteristics are recommended used deformation regulate regimes.