动态异面压缩下铝蜂窝平均坍塌应力分析与试验验证

Yu Bo Zhu, Ji Li Rong*, Qian Qiang Song, Tao Zhang, Zhi Pei Wu

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

3 引用 (Scopus)

摘要

In order to study the mean plastic crushing stress of aluminum honeycombs under dynamic out-of-plane compression, based on the theoretical study on quasi-static compression of aluminum honeycombs, the influence of the aluminum honeycomb strain rate effect on the mechanical properties of the material is considered. Using the Cowper-Symonds model and taking the basic folding element as the research object, the equivalent perimeter method is used to obtain the strain rate. Two theoretical calculation formulae of the mean plastic crushing stress of aluminum honeycombs under dynamic out-of-plane compression are given. The drop hammer impact test results and simulation results show that the correlation coefficient between the dynamic mean plastic crushing stress under the Tresca yield criterion and the experimental stress or simulation stress is above 98%, which verifies the correctness of the theoretical derivation. The theoretical calculation formulae given in this paper have certain engineering guiding significance for studying the out-of-plane compression performance of aluminum honeycombs under dynamic impact.

投稿的翻译标题Analysis and Experimental Verification of Mean Crushing Stress of Aluminum Honeycombs under Dynamic Out-of-Plane Compression
源语言繁体中文
页(从-至)1393-1400
页数8
期刊Yuhang Xuebao/Journal of Astronautics
41
11
DOI
出版状态已出版 - 30 11月 2020

关键词

  • Aluminum honeycombs
  • Dynamic compression
  • Mean plastic crushing stress
  • Out-of-plane compression

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引用此

Zhu, Y. B., Rong, J. L., Song, Q. Q., Zhang, T., & Wu, Z. P. (2020). 动态异面压缩下铝蜂窝平均坍塌应力分析与试验验证. Yuhang Xuebao/Journal of Astronautics, 41(11), 1393-1400. https://doi.org/10.3873/j.issn.1000-1328.2020.11.004