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Volume 36 Issue 1
Jan 2022
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Chinese Journal of High Pressure Physics  > 2022  >  36(1): 014204.
YU Pengshan, LIU Zhifang, LI Shiqiang. Design and Crashworthiness Analysis of New Bionic Honeycomb Structure[J]. Chinese Journal of High Pressure Physics, 2022, 36(1): 014204. doi: 10.11858/gywlxb.20210817
Citation: YU Pengshan, LIU Zhifang, LI Shiqiang. Design and Crashworthiness Analysis of New Bionic Honeycomb Structure[J]. Chinese Journal of High Pressure Physics, 2022, 36(1): 014204. doi: 10.11858/gywlxb.20210817
shu

Design and Crashworthiness Analysis of New Bionic Honeycomb Structure

doi: 10.11858/gywlxb.20210817

  • Institute of Applied Mechanics, College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China

  • Received Date: 18 Jun 2021
  • Rev Recd Date: 01 Jul 2021
    Abstract
  • Inspired by the microstructures of bamboo in nature, two new bionic honeycomb structures were designed based on topological derivation method by introducing inner tube and double diamond ribs on the basis of traditional round tube and hexagonal tube. The performances of the bionic honeycomb structures and the traditional honeycomb structures under quasi-static compression are compared, and the theoretical analysis model of the bionic honeycomb structures is established based on the simplified super folding element theory. On this basis, ABAQUS finite element software is used to simulate the crashworthiness of the new bionic honeycombs. The influences of the single cell configuration, the wall thickness and the angle of the double diamond ribs of the honeycomb on the crashworthiness of the bionic honeycombs are studied. The results show that the crashworthiness of the bionic honeycombs is better than that of the traditional circular honeycomb and the traditional hexagonal honeycomb. Compared with the traditional hexagonal honeycomb, the specific energy absorption and compression force efficiency of the new bionic hexagonal honeycomb are increased by 51.18% and 53.14%, respectively. The theoretical predictions on the average compression forces of the bionic honeycomb structures are consistent with the numerical simulation results, and the errors are less than 10%. The crashworthiness of the hexagonal bionic honeycomb is better than that of the circular bionic honeycomb. Moreover, the crashworthiness of the bionic honeycomb structure can be improved by increasing the wall thickness appropriately, or by increasing the angle of the double diamond ribs.

     

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