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Volume 39 Issue 7
Jul 2025
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Chinese Journal of High Pressure Physics  > 2025  >  39(7): 074101.
YANG Qiao, ZHANG Tianhui, LIU Zhifang, LEI Jianyin, LI Shiqiang. Response Characteristics and Deformation Mechanism of Sandwich Tubes under Lateral Explosive Loads[J]. Chinese Journal of High Pressure Physics, 2025, 39(7): 074101. doi: 10.11858/gywlxb.20251017
Citation: YANG Qiao, ZHANG Tianhui, LIU Zhifang, LEI Jianyin, LI Shiqiang. Response Characteristics and Deformation Mechanism of Sandwich Tubes under Lateral Explosive Loads[J]. Chinese Journal of High Pressure Physics, 2025, 39(7): 074101. doi: 10.11858/gywlxb.20251017
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Response Characteristics and Deformation Mechanism of Sandwich Tubes under Lateral Explosive Loads

doi: 10.11858/gywlxb.20251017

  • Institute of Applied Mechanics, College of Aeronautics and Astronautics, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China

  • Received Date: 22 Jan 2025
  • Rev Recd Date: 12 Mar 2025
    • Available Online: 12 Mar 2025
  • Issue Publish Date: 07 Jul 2025
    Abstract
  • The dynamic response and energy absorption performance of foam aluminum sandwich tubes under lateral explosive loads were systematically investigated using a combination of experimental research and numerical simulation. A series of lateral explosion experiments were conducted using a ballistic pendulum system to analyze the effects of structural geometric parameters, foam aluminum density, and the explosive mass on the deformation mode and blast resistance performance. Based on the experimental results, numerical simulations were performed to further compare the blast resistance performance of foam aluminum sandwich tubes and circular tube core sandwich tubes, comparing gradient and non-gradient designs of circular tube core sandwich tubes. The results show that, the final deformation of circular tube core sandwich tubes is greater than that of foam aluminum sandwich tubes, although the difference is not significant. Among the gradient circular tube core sandwich tubes, the configuration with the largest outer wall thickness and the thinnest middle layer exhibits the best improvement in blast resistance performance. Furthermore, the blast resistance performance of gradient circular tube core sandwich tubes is significantly superior to that of non-gradient structures.

     

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