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Volume 33 Issue 4
Jul 2019
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Chinese Journal of High Pressure Physics  > 2019  >  33(4): 045201.
ZHANG Guanghua, QU Kepeng, SHEN Fei, WANG Hui. Experimental Study on Impact Safety and Implosing Energy Release Characteristics of Composed Charge[J]. Chinese Journal of High Pressure Physics, 2019, 33(4): 045201. doi: 10.11858/gywlxb.20190735
Citation: ZHANG Guanghua, QU Kepeng, SHEN Fei, WANG Hui. Experimental Study on Impact Safety and Implosing Energy Release Characteristics of Composed Charge[J]. Chinese Journal of High Pressure Physics, 2019, 33(4): 045201. doi: 10.11858/gywlxb.20190735
shu

Experimental Study on Impact Safety and Implosing Energy Release Characteristics of Composed Charge

doi: 10.11858/gywlxb.20190735

  • Xi’an Modern Chemistry Research Institute, Xi’an 710065, China

  • Received Date: 05 Mar 2019
  • Rev Recd Date: 18 Mar 2019
    Abstract
  • To verify impact safety and implosion power of a composed charge, the drop hammer tests and implosion power experiments were conducted. The results show that critical height of the single thermo-baric explosive is 2.2 m under loading of 400 kg hammer, while the composed charge did not ignite under height from 2.2 m to 2.7 m, which means that the composed charge holds a better impact safety property. Peak overpressure of the composed charge was 61.9% of the single thermo-baric explosive, the impulse of the composed charge was 99.4% of the single thermo-baric explosive, and the peak quasi-static pressure of the composed charge was 94.5% of the single thermo-baric explosive. Considering energy release characteristics within a limited space, it is more suitable to use peak quasi-static pressure as an evaluation standard. The test results show that implosing energy release characteristics of the composed charge is almost the same as the single thermo-baric explosive.

     

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