【摘要】 将天然毛竹材视为纤维与基体两种组分材料构成的复合材料，以一个维管束及周围所辖薄壁组织细胞为分析单元进行微观力学性能分析，得出以组分材料性能与含量表示的宏观抗拉弹性模量和极限抗拉强度计算式。实验结果表明：毛竹材组分含量沿壁厚及秆高变异显著；组分（即纤维与基体）的抗拉弹性模量分别为２７．６０ＧＰａ和６．０６ＧＰａ，抗拉强度分别为５４７．６８ＭＰａ和７４．６０ＭＰａ。毛竹材的宏观抗拉弹性模量及强度同组分材料的数量及分布密度密切相关。更多还原

【Abstract】 Natural bamboo is considered as a compound material formed byfiber and base, Micromechanics property is analysed to a vascular bundleand thin- walled tissue involved as a unit.The formula of macro elasticreactance modulus and tensile maximum strength are expressed by compo-nent material property,Analyses show that there is big variation of compo-nent material along the bamboo strunk and wall thickness,Component material(fiber and base)elastic reactance modulus are 27.60 and 6.06 GPa,tensilestrength are 547.68 and 74.60 MPa.There is a closed relationship betweenbamboo macro elastic reactance modulus and number and distribution density of component material.更多还原