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To solve the technical problem of converting the nuclear blast loading to equivalent chemical blast loading, based on a certain protective door test under TNT blast loading, taking the same maximum dynamic response of the protective door as the equivalent principle, numerical simulation method, impulse equivalence method, and Duhamel integration method are carried out to obtain the peak overpressure of nuclear blast under different TNT blast, conversion function of nuclear-TNT blast loading is fitted as a consequence. The fitting results show that all three methods are reasonable and effective. In comparison, when the stand-off distance z is greater than or equal to 1.71 m/kg1/3, the Duhamel integration method is more suitable, while when z is less than 1.71 m/kg1/3, the impulse equivalence method is.

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Research on the Conversion Relationship of Nuclear-TNT Blast Loading Based on a Protective Door Test Under TNT Blast Loading

  • 章节

  • 出版模式：

    开放获取

  • 发表日期：

    2025年

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  • Shangwei Dong,
  • Zhimin Tian,
  • Ce Tian,
  • Jiuyi Li

摘要

To solve the technical problem of converting the nuclear blast loading to equivalent chemical blast loading, based on a certain protective door test under TNT blast loading, taking the same maximum dynamic response of the protective door as the equivalent principle, numerical simulation method, impulse equivalence method, and Duhamel integration method are carried out to obtain the peak overpressure of nuclear blast under different TNT blast, conversion function of nuclear-TNT blast loading is fitted as a consequence. The fitting results show that all three methods are reasonable and effective. In comparison, when the stand-off distance z is greater than or equal to 1.71 m/kg1/3, the Duhamel integration method is more suitable, while when z is less than 1.71 m/kg1/3, the impulse equivalence method is.