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首页> 外文会议>Proceedings of Third International Symposium on Wood Machining >'Green' properties of green material: tensile strength and young's modulus of juvenile hybrid aspen (populus tremula x populus tremuloides)
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'Green' properties of green material: tensile strength and young's modulus of juvenile hybrid aspen (populus tremula x populus tremuloides)

机译：绿色材料的“绿色”特性：少年杂种杨木（杨杨x tremuloides）的抗张强度和杨氏模量

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摘要

Experiments within genetic tree research are often carried out on cultivated saplings of hybrid aspen (Po-pulus tremula x tremuloides). The objective of the present study was to develop a tensile test method for small green samples from saplings, and to compare mechanical properties of juvenile hybrid aspen and European aspen (Populus tremula). Small specimens from samples of the two species were manufactured using a sleigh microtome and successfuly tested. Strain was determined by digital speckle photography (DSP). Results showed significantly lower values for the hybrid aspen in both tensile strength and Young's modulus parallel to grain. Differences in mechanical properties correlated with lower density in the hybrid than in the juvenile European aspen saplings.
机译：遗传树研究中的实验通常是在杂交白杨（Po-pulus tremula x tremuloides）的树苗上进行的。本研究的目的是开发一种用于幼树幼小的绿色样品的拉伸测试方法，并比较幼龄杂种白杨和欧洲白杨（杨木）的力学性能。使用雪橇切片机从这两个物种的样本中制造了小样本，并成功进行了测试。应变通过数字散斑摄影（DSP）确定。结果表明，在平行于晶粒的拉伸强度和杨氏模量上，杂种白杨的值均显着较低。与欧洲少年杨树幼树相比，杂种的机械性能差异与更低的密度相关。

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