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首页> 外文期刊>Materials Science and Engineering >Experimental study on the effects of specimen in-plane size on the mechanical behavior of aluminum hexagonal honeycombs
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Experimental study on the effects of specimen in-plane size on the mechanical behavior of aluminum hexagonal honeycombs

机译：试样平面尺寸对六角形铝蜂窝力学行为影响的实验研究

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摘要

Specimen size affects the mechanical properties of hexagonal honeycombs. Out-of-plane and in-plane uniaxial compression tests are conducted on three kinds of honeycomb specimens with different relative densities to investigate the effects of specimen in-plane size on the mechanical properties of hexagonal honeycombs. Results indicate that an increase in specimen in-plane size causes a decrease in the macroscopic stiffness in the out-of-plane direction (x_3-direction) but an increase in that in the in-plane directions (x_1-direction and x_2-direction). Additionally, the macroscopic stiffness in out-of-plane direction decreases as in-plane size increases up to N × N= 13 × 13, beyond which the macroscopic stiffness becomes stable. The macroscopic stiffness in the in-plane directions increases with the specimen in-plane size up to N × N=9 × 9. These results serve as bases for determining the minimum specimen in-plane size N × N≥ 13 × 13 of hexagonal honeycomb for measuring the effective mechanical properties of a bulk sample of honeycomb.
机译：标本的尺寸会影响六角形蜂窝的机械性能。对三种相对密度不同的蜂窝状试样进行了面外和面内单轴压缩试验，研究了面内尺寸对六角形蜂窝状力学性能的影响。结果表明，样品面内尺寸的增加导致面外方向（x_3方向）的宏观刚度降低，而面内方向（x_1方向和x_2方向）的宏观刚度增加）。另外，随着面内尺寸的增加，直到N×N ＝ 13×13时，面外方向的宏观刚度降低，在此之后，宏观刚度变得稳定。面内方向的宏观刚度随着样品面内尺寸的增加而增大，直到N×N = 9×9。这些结果为确定六角形的最小样品面内尺寸N×N≥13×13提供了依据。蜂窝，用于测量蜂窝状散装样品的有效机械性能。

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  • 来源
    《Materials Science and Engineering》 |2015年第21期|23-35|共13页
  • 作者

    Tao Jin; Zhiwei Zhou; Zhihua Wang; Guiying Wu; Xuefeng Shu;

  • 作者单位

    Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China;

    State Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, 730000, China;

    Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China;

    Department of Mechanics, Taiyuan University of Technology, Taiyuan 030024, China;

    Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China;

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  • 正文语种 eng
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  • 关键词

    Hexagonal honeycombs; Specimen size effects; Mechanical property;

    机译：六角蜂窝;标本尺寸影响;机械性能;

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