棉花秸秆静态力学性能实验研究

Static mechanical properties experimental study of cotton stalks

新疆地区是我国重要的产棉区,对棉花秸秆进行综合性的实验研究可以为棉花采收、棉秸秆回收还田以及棉地残膜回收等提供充分的理论数据支持。本次实验利用微机控制电子万能试验机对棉秸秆进行剪切、弯曲、拉伸和压缩实验,获得较全面的数据。实验表明,棉秸秆所受的剪切力、弯曲力、拉伸力和压缩力均随直径的增大而增大;棉秸秆的抗剪强度变化趋势不明显,抗拉强度及抗压强度随直径增大而增大。

The Xinjiang area is a important cotton - producing region, cotton stalks comprehensive experimental study for the cotton harvest, cotton straw recycling and cotton land plastic film recycling provide full support of theoretical data. This experiment using a microcomputer controlled electronic universal testing machine to shear cotton straw, bend, stretch and compression, to obtain more comprehensive data. The experiments show that the cotton stalks received the shearing force, bending force, tensile force and the compressive force which increases with the diameter, the cotton stalks not have clear trend of change of the shear strength, tensile strength and compressive strength increases with the diameter.