红麻茎秆力学特性试验研究

Experimental Study on Mechanical Properties of Kenaf Stalk

以六安大麻红麻试验站的新鲜红麻茎秆为试验对象,假定几何模型,对红麻的茎秆、韧皮部和木质部进行力学特性研究。根据复合材料力学理论、正交各项异性材料公式,得出红麻茎秆、木质部和韧皮部的轴向弹性模量分别为1101.11、656.56、2853.71MPa,径向弹性模量分别为11.36、18.12、6.67MPa、异性面径向剪切模量分别为55.83、91.12、47.59MPa,同性面轴向剪切模量分别为4.37、6.97、2.57MPa。试验可为降低生产装备在收割过程中对红麻茎秆韧皮纤维的损伤、提高割茬切口的质量、提升机械收获效率提供理论研究基础。

In luan marijuana kenaf experimental station of fresh kenaf stem as test object, the given geometric model, stalks, phloem and xylem of kenaf mechanical properties research, according to the theory of compound material mechanics, the orthogonal each opposite sex material formula kenaf stem, xylem and phloem of axial elastic modulus were 1101.11, 656.56 and 2853.71 MPa;The radial elastic modulus is 11.36, 18.12 and 6.67 MPa, respectively. The radial shear modulus of the opposite plane was 55.83, 91.12 and 47.59 MPa, respectively. The axial shear modulus of the same plane was 4.37, 6.97 and 2.57 MPa, respectively. In order to reduce the damage of production equipment in the process of harvesting kenaf stalk bast fiber, improve the quality of cutting stubble incision, improve the efficiency of mechanical harvest to provide a theoretical research basis.