Tensile Properties and Fracture Mechanisms of Corn Bract for Corn Peeling Device Design

This paper describes the physical and tensile properties of corn bracts during a whole harvest period by using two cultivars, aiming to realize efficient peeling with minimum energy performance decrease incidence ear damage. The value range change rule were obtained combining mechanical experiments numerical statistics. Meanwhile, mathematical models established for depending on bract moisture content thickness. experimental results show that leaf blade affected orientation between pulling force longitudinal vein, parallel was greater than perpendicular. Further, sheaths depended angle natural growth direction in following order: 0° > 90° 180°. A larger can improve probability fracturing at root sheaths, which helps reduce residue peduncle. In addition, fracture mechanisms blades expressed from physiological morphological perspectives. are believed be able provide theoretical guidance design optimize corn-peeling devices.