Internal explosion experiment based test method for quantitative evaluation on energy release of thermobaric explosive

A technology of thermobaric explosives and energy release, applied in the direction of material explosiveness, etc., can solve the problems of high test cost, randomness of explosion test, high risk, and difficulty in realization.

Inactive Publication Date: 2014-02-05
XIAN MODERN CHEM RES INST
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Problems solved by technology

Due to the randomness and risk of explosion tests on physical targets,...

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  • Internal explosion experiment based test method for quantitative evaluation on energy release of thermobaric explosive
  • Internal explosion experiment based test method for quantitative evaluation on energy release of thermobaric explosive
  • Internal explosion experiment based test method for quantitative evaluation on energy release of thermobaric explosive

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[0142] It should be noted that the inner diameter of the test explosion tank used in this example is φ2.6m, and the volume is 26m 3 , the impact resistance is less than 7kgTNT equivalent; the mass ratio of the test temperature and pressure explosive components is 64.4% HMX, 30% Al, 1.4% fluororubber, 4.2% DOA, and the molecular formula is C 1.242 h 2.410 N 1.870 o 1.451 f 0.05226 Al 1.193 , wherein the valence of the C atom is -4, the valence of the H atom is +1, the valence of the O atom is -2, the valence of the F atom is -1, and the valence of the Al atom is +3, and the TNT equivalent coefficient of the thermobaric explosive is tested is 1.8.

[0143] The present embodiment provides a method for quantitative testing of the energy release of thermobaric explosives based on the internal explosion test, the method comprising the following steps:

[0144] Step 1, the determination of the test device;

[0145] Use the test explosion tank to carry out the internal explosio...

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Abstract

The invention belongs to the field of explosives, and provides an internal explosion experiment based test method for quantitative evaluation on energy release of thermobaric explosive. The method is as below: determination of test devices; determination of the weight of the thermobaric explosive for test; determination of whether the amount of oxygen required by thermobaric explosive test is met; acquisition of quasi-static pressure data in a tank; acquisition of quasi-static pressure peak value of the thermobaric explosive; and finally acquisition of the test results of temperature and pressure effect of the thermobaric explosive. The invention employs the experiment explosion tank as a test carrier to simulate a closed environment for actual use of the thermobaric explosive, so as to obtain the for quasi-static pressure parameters of explosion of the thermobaric explosive and lay foundation for evaluation on explosion energy output the thermobaric explosive. A method for acquiring quasi-static pressure of the thermobaric explosive in limited space in different gas environment is employed to separate release energy from an anaerobic deflagration reaction stage and an explosion process of the thermobaric explosive, so as to obtain energy release in the oxygen combustion stage.

Description

technical field [0001] The invention belongs to the field of explosives and relates to thermobaric explosives, in particular to a method for quantitatively evaluating and testing the energy release of thermobaric explosives based on internal explosion tests. Background technique [0002] Thermobaric explosives are made by mixing high-energy explosives, different types of metal ultrafine powders, binders and plasticizers in a certain proportion. After detonation, the first stage is an oxygen-free deflagration reaction stage, and the output of the shock wave rises steeply and then decays slowly. Overpressure, the time scale is on the order of microseconds. This stage is the internal reaction of the thermobaric explosive, including the oxidation-reduction reaction of the high-energy explosive in the thermobaric explosive component and the anaerobic combustion reaction of fuel particles and detonation products. The oxygen in the surrounding environment basically does not partici...

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Application Information

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IPC IPC(8): G01N25/54
Inventor 苏健军李芝绒王胜强姬建荣潘文孔霖苟兵旺张俊锋张玉磊赵超越
Owner XIAN MODERN CHEM RES INST
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