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Volume 34 Issue 6
Nov 2020
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Chinese Journal of High Pressure Physics  > 2020  >  34(6): 062402.
WU Wei, ZHANG Hui, CAO Meiwen, ZHANG Xia, CHEN Fei, LIANG Qingxiang, CHANG Chao. Numerical Simulation of Quasi-Static Compression and Energy Absorption of Bionic BCC Structure[J]. Chinese Journal of High Pressure Physics, 2020, 34(6): 062402. doi: 10.11858/gywlxb.20200578
Citation: WU Wei, ZHANG Hui, CAO Meiwen, ZHANG Xia, CHEN Fei, LIANG Qingxiang, CHANG Chao. Numerical Simulation of Quasi-Static Compression and Energy Absorption of Bionic BCC Structure[J]. Chinese Journal of High Pressure Physics, 2020, 34(6): 062402. doi: 10.11858/gywlxb.20200578
shu

Numerical Simulation of Quasi-Static Compression and Energy Absorption of Bionic BCC Structure

doi: 10.11858/gywlxb.20200578
  • 1.

    Department of Mechanics, College of Applied Science, Taiyuan University of Science and Technology, Taiyuan 030008, Shanxi, China

  • 2.

    Shanxi Diesel Engine Industry Co., Ltd., Datong 037036, Shanxi, China

  • Received Date: 28 Jun 2020
  • Rev Recd Date: 22 Jul 2020
    Abstract
  • The lattice structure is widely used in aerospace, military, and other fields due to its lightweight and excellent energy absorption. This article mainly studies the energy absorption of the bionic BCC (body-centered cubic) structure and discusses its influence by the cross-sectional morphology. In this paper, three different BCC bionic bamboo lattice structures are designed based on the macro-structure and meso-structure of Phyllostachys pubescens. Additionally, the axial compression numerical simulation is carried out on the bionic bamboo lattice structures and original BCC lattice structure, respectively. The results show that both the energy absorption and specific energy absorption of the bionic bamboo lattice structures under quasi-static load are improved by more than 25% compared with the original BCC structure. However, the energy absorption and specific energy absorption of the three bionic bamboo lattice structures are similar. It is also indicated that the relative density of the structure has great influence on its energy absorption and specific energy absorption. During the compression process of the bionic BCC structure, there are wrinkles and collapses inside, which might be an important reason for the stable energy absorption of the bionic structure.

     

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