Applied Mathematics and Mechanics (English Edition) ›› 2023, Vol. 44 ›› Issue (3): 345-362.doi: https://doi.org/10.1007/s10483-023-2962-9

• 论文 •    下一篇

Dynamic crushing behavior and energy absorption of hybrid auxetic metamaterial inspired by Islamic motif art

Ruilan TIAN1,2, Huaitong GUAN1,2, Xuhao LU1, Xiaolong ZHANG1,2, Huanan HAO1, Wenjie FENG1,2, Guanglei ZHANG3   

  1. 1. Department of Engineering Mechanics, Hebei Key Laboratory of Mechanics of Intelligent Materials and Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
    2. State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
    3. School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
  • 收稿日期:2022-07-30 修回日期:2022-12-08 出版日期:2023-03-01 发布日期:2023-02-27
  • 通讯作者: Xiaolong ZHANG, E-mail: xiaolongzhang@stdu.edu.cn
  • 基金资助:
    the National Natural Science Foundation of China (Nos. 12102274, 12072203, and 11872253), the Natural Science Foundation of Hebei Province of China (No. A2022210005), and the Central Guidance on Local Science and Technology Development Fund of Hebei Province of China (No. 226Z4901G)

Dynamic crushing behavior and energy absorption of hybrid auxetic metamaterial inspired by Islamic motif art

Ruilan TIAN1,2, Huaitong GUAN1,2, Xuhao LU1, Xiaolong ZHANG1,2,, Huanan HAO1, Wenjie FENG1,2, Guanglei ZHANG3   

  1. 1. Department of Engineering Mechanics, Hebei Key Laboratory of Mechanics of Intelligent Materials and Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
    2. State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang 050043, China;
    3. School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
  • Received:2022-07-30 Revised:2022-12-08 Online:2023-03-01 Published:2023-02-27
  • Contact: Xiaolong ZHANG, E-mail: xiaolongzhang@stdu.edu.cn
  • Supported by:
    the National Natural Science Foundation of China (Nos. 12102274, 12072203, and 11872253), the Natural Science Foundation of Hebei Province of China (No. A2022210005), and the Central Guidance on Local Science and Technology Development Fund of Hebei Province of China (No. 226Z4901G)

摘要: Auxetic honeycomb structures are promising metamaterials with outstanding mechanical properties, and can be potentially used in energy absorption applications. In this study, a novel modified re-entrant hybrid auxetic metamaterial inspired by Islamic motif art is designed by integrating four-pointed double re-entrant motifs with symmetric semi-hexagonal unit cells to achieve a high energy absorption capacity (EAC). Theoretical analyses and numerical simulations are performed to examine the dynamic crushing behavior of the four-pointed double re-entrant combined structure (FDRCS). The developed finite element models (FEMs) are validated by the experiments under quasi-static compression. The deformation mode and stress-strain curves are further studied under low, medium, and high crushing velocities. The theoretically predicted plateau stress of the FDRCS under different crushing velocities is consistent with the numerical simulation results. The crushing stress and the EAC of the FDRCS are influenced by the geometric parameters and crushing velocities. The FDRCS exhibits a negative Poisson's ratio (NPR), owing to the four-point re-entrant structure (RES). Moreover, the specific energy absorption (SEA) of these structures is higher than that of nonauxetic hexagonal and auxetic re-entrant structures, owing to the generation of more plastic hinges that dissipate more energy during dynamic crushing.

关键词: re-entrant honeycomb, auxetic hybrid metamaterial, energy-absorption, dynamic crushing

Abstract: Auxetic honeycomb structures are promising metamaterials with outstanding mechanical properties, and can be potentially used in energy absorption applications. In this study, a novel modified re-entrant hybrid auxetic metamaterial inspired by Islamic motif art is designed by integrating four-pointed double re-entrant motifs with symmetric semi-hexagonal unit cells to achieve a high energy absorption capacity (EAC). Theoretical analyses and numerical simulations are performed to examine the dynamic crushing behavior of the four-pointed double re-entrant combined structure (FDRCS). The developed finite element models (FEMs) are validated by the experiments under quasi-static compression. The deformation mode and stress-strain curves are further studied under low, medium, and high crushing velocities. The theoretically predicted plateau stress of the FDRCS under different crushing velocities is consistent with the numerical simulation results. The crushing stress and the EAC of the FDRCS are influenced by the geometric parameters and crushing velocities. The FDRCS exhibits a negative Poisson's ratio (NPR), owing to the four-point re-entrant structure (RES). Moreover, the specific energy absorption (SEA) of these structures is higher than that of nonauxetic hexagonal and auxetic re-entrant structures, owing to the generation of more plastic hinges that dissipate more energy during dynamic crushing.

Key words: re-entrant honeycomb, auxetic hybrid metamaterial, energy-absorption, dynamic crushing

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