The bending, tensile and compressive experiments of ramie xylem of the variety “Huazhu-4” were conducted by using an universal testing machine “RGT-10”. The results are as follows: for ramie “Huazhu-4”, the average bending modulus and strength of xylem are 7358.69MPa and 40.77MPa, respectively; and its Yong's modulus and tensile strength are 177.26MPa and 32.25MPa, respectively. Its average compressive modulus is 7.70MPa and bending modulus and strength are greater than its Yong's modulus and tensile strength. There is a distinct difference between tensile and compressive modulus. Xylem is a kind of anisotropic material and modeling its mechanical model needs anisotropic constitutive relations.
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苏工兵,刘俭英,王树才,黄钺,文友先.苎麻茎秆木质部力学性能试验[J].农业机械学报,2007,38(5):62-65.[J]. Transactions of the Chinese Society for Agricultural Machinery,2007,38(5):62-65.