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Volume 34 Issue 6
Nov 2020
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Chinese Journal of High Pressure Physics  > 2020  >  34(6): 064203.
YANG Xiangli, HE Yong, HE Yuan, WANG Chuanting, XU Tao, TIAN Weixi, ZHOU Jie. 3D Mesoscopic Simulation of Shock Compression Behaviors of Reactive Materials[J]. Chinese Journal of High Pressure Physics, 2020, 34(6): 064203. doi: 10.11858/gywlxb.20200539
Citation: YANG Xiangli, HE Yong, HE Yuan, WANG Chuanting, XU Tao, TIAN Weixi, ZHOU Jie. 3D Mesoscopic Simulation of Shock Compression Behaviors of Reactive Materials[J]. Chinese Journal of High Pressure Physics, 2020, 34(6): 064203. doi: 10.11858/gywlxb.20200539
shu

3D Mesoscopic Simulation of Shock Compression Behaviors of Reactive Materials

doi: 10.11858/gywlxb.20200539
  • 1.

    ZNDY of Ministerial Key Laboratory, Nanjing University of Science & Technology, Nanjing 210094, Jiangsu, China

  • 2.

    Hubei Aerospace Flight Vehicle Institute, Wuhan 430035, Hubei, China

  • Received Date: 07 Apr 2020
  • Rev Recd Date: 13 May 2020
    Abstract
  • In order to investigate the mesoscopic behavior of Al/PTFE reactive materials under shock loading, the shock response of Al/PTFE and Al/Ni reactive materials were investigated via numerical approaches. Two material samples were fabricated by ball mill mixing and cold isostatic pressing, and a Nano-CT system was employed to obtain their mesoscopic images. The 3D mesoscopic finite-element model based on the real configuration was established with the help of image processing and mesh mapping methods, and the numerical Hugoniot results agreed well with the theoretical results. The numerical modeling results indicated that the shock wave is uneven in the mesoscale, and the metal granules were compressed and moved along the impact direction. The PTFE matrix of Al/PTFE melted at high impact velocity, while the Al/Ni remained solid within the impact velocity range of this study.

     

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