八角木材物理力学性质研究

Physical and Mechanical Properties of Illicium verum Wood

以8年生八角木(Illicium verum)木材为实验材料,对其物理力学性质进行测试和分析。结果表明,八角木的基本密度、气干密度和全干密度分别为0.468、0.576、0.533 g/cm^3,属于中等级。木材端面、弦面和径面的硬度分别为5 500、4 050、3 730 N,抗弯强度和抗弯弹性模量分别为95.1、7 490 MPa,顺纹抗压强度为39.2 MPa,冲击韧性为29 k J/m^2。木材综合品质系数达2.869×108Pa,属高等级材。

Physical and mechanical properties of wood from 8-year-old Illicium verum plantation were tested and analyzed. Results showed that basic density, air-dried density and oven-dried density of wood were 0. 468 g/cm3, 0. 576 g/cm3 and 0. 533 g/cm3 respectively, belonging to middle level. Hardness of cross, tangential and radial surfaces were 5 500 N, 4 050 N and 3 730 N respectively. Bending strength and modulus of elasticity were 95.1 MPa and 7 490 MPa respectively. Compressive strength parallel to grain was 39. 2 MPa. Impact toughness was 29 kJ/m2. Comprehensive quality coefficient of the wood was high with 2. 869×108 Pa, belonging to high class wood.