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首页> 外文期刊>Journal of Arboriculture >Assessment of fracture moment and fracture angle in 25 tree species in the United States using the Fractometer.
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Assessment of fracture moment and fracture angle in 25 tree species in the United States using the Fractometer.

机译：使用Fractometer评估美国25种树种的断裂力矩和断裂角度。

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摘要

The fracture moment and fracture angle of core samples from the lower stem of 25 tree species were evaluated using the Fractometer, a device developed at the Nuclear Research Institute, Karlsruhe, Germany. In 6 additional species, core segments broke upon initial loading in the Fractometer and values could not be obtained. Fracture moments and angles were recorded for street, amenity and arboretum trees located in California, Oregon, Pennsylvania, and Illinois. The sampled trees were healthy and free from known stem defects. Results varied by species, core segment, and location of tree. Application of the Fractometer to tree hazard evaluation procedures is discussed.
机译：使用Fractometer（来自德国卡尔斯鲁厄核研究所的设备）评估了来自25个树种下茎的核心样品的断裂力矩和断裂角度。在另外6个物种中，岩心片段在初始加载到Fractometer中时破裂，无法获得值。记录位于加利福尼亚州，俄勒冈州，宾夕法尼亚州和伊利诺伊州的街道，便利设施和植物园的断裂力矩和角度。采样的树木健康，没有已知的茎缺陷。结果因物种，核心部分和树的位置而异。讨论了分形仪在树木危害评估程序中的应用。

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