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Volume 38 Issue 1
Feb 2024
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Chinese Journal of High Pressure Physics  > 2024  >  38(1): 012301.
WANG Ganghua, XIE Long, XIAO Bo, WANG Qiang, TANG Jiupeng, OU Haibin, KAN Mingxian, DUAN Shuchao. Electric Explosion Early Process Analysis of Metal Bridge Foil Based on an Electromagnetic-Thermal-Mechanical Model[J]. Chinese Journal of High Pressure Physics, 2024, 38(1): 012301. doi: 10.11858/gywlxb.20230711
Citation: WANG Ganghua, XIE Long, XIAO Bo, WANG Qiang, TANG Jiupeng, OU Haibin, KAN Mingxian, DUAN Shuchao. Electric Explosion Early Process Analysis of Metal Bridge Foil Based on an Electromagnetic-Thermal-Mechanical Model[J]. Chinese Journal of High Pressure Physics, 2024, 38(1): 012301. doi: 10.11858/gywlxb.20230711
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Electric Explosion Early Process Analysis of Metal Bridge Foil Based on an Electromagnetic-Thermal-Mechanical Model

doi: 10.11858/gywlxb.20230711

  • Institute of Fluid Physics, CAEP, Mianyang 621999, Sichuan, China

  • Received Date: 11 Aug 2023
  • Rev Recd Date: 30 Oct 2023
    • Available Online: 05 Feb 2024
  • Issue Publish Date: 05 Feb 2024
    Abstract
  • The electrical explosion of metal bridge foil is a key physical process in many fields, e.g. electric guns and slapper detonator. Due to the complexity of material properties, dynamic processes, and effects of geometric configurations, a large amount of earlier theoretical simulations used simplified physical models. In this paper, a three-dimensional electromagnetic-thermal-mechanical model was established. which was a full physical model describing the early behavior of explosive foil. The early thermal expansion process of the explosive foil under large current loading was simulated, and the evolution of magnetic field, current, temperature, expansion speed of the foil was analyzed. The phenomena of angular and linear current diffusions induced by the configuration and the resistivity were observed in the simulation. The temperature distribution in the bridge region obtained from the simulation is qualitatively consistent with experiment and simulation results of literature.

     

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