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

A temperature-pressure explosive and temperature-pressure effect technology, applied in the direction of analyzing materials and instruments, can solve the problems of inaccuracy, difficulty in calibrating static pressure effects, and incomplete evaluation of explosives.

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

[0003] For the evaluation of the explosion effect of explosives, there is no unified evaluation method and standard in China. At present, the evaluation method of the temperature and pressure effect after the explosion of thermobaric explosives is mainly based on GJB 5412-2005 "Explosion parameter test and Explosion power evaluation method", through the free ground test of explosives, measuring the overpressure parameter value of the explosion shock wave, and evaluating the explosive effect of explosives
However, for thermobaric explosives, due to the thermal and pressure effects of explosive explosion, the performances are not completely the same in the free field environment and the limited space environment. Obviously, and it is difficult to form a quasi-static pressure effect in an open space, it is incomplete and inaccurate to evaluate the temperature-pressure effect of explosives only based on free ground tests

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

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[0134] 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 PMX thermobaric 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.

[0135] This embodiment provides a kind of test method for the quantitative evaluation of the temperature-pressure effect of thermo-pressure explosives based on internal explosion test, the method comprises the following steps:

[0136] Step 1, the determination of the test device;

[0137] Use the test explosion tank to carry out the i...

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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 thermobaric effect of thermobaric explosive. The method comprises the following steps: using a pressure sensor and a thermocouple to obtain benchmark TNT explosives, a curve for evaluation of shock overpressure of thermobaric explosive in an explosion tank, a thermocouple response temperature curve and a tank quasi-static pressure curve; then processing the experimental data to obtain a shock wave overpressure peak value, impulse, a thermocouple response temperature peak value and a quasi-static pressure peak value; and calculating TNT ratio of characteristic parameters of the thermobaric explosive and evaluating the thermobaric effect of the thermobaric explosive. The invention employs the explosion tank as an evaluation test carrier and uses TNT explosive with the same weight as a benchmark to quantitatively evaluate thermobaric effect of the thermobaric explosive, so as to provide technical basis for the development and power evaluation of thermobaric warhead.

Description

technical field [0001] The invention belongs to the field of explosives, and relates to thermobaric explosives, in particular to a test method for quantitative evaluation of the temperature-pressure effect of thermobaric explosives based on an internal explosion test. Background technique [0002] In the development process of the warhead, it is necessary to select the charge type of the warhead according to the combat target to achieve the most effective damage effect on the target. With the development of high-efficiency explosives technology, the energy release law of new high-energy explosives is different from that of traditional high-explosives. The energy output after explosion is also different, and the damage effect on targets is different. In addition to the shock wave overpressure peak that is almost the same as that of high explosives, it also produces aerobic combustion reaction, releases a large amount of combustion heat, produces high temperature, high pressur...

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Application Information

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IPC IPC(8): G01N7/14
Inventor 李芝绒张俊锋苟兵旺闫潇敏张玉磊王胜强姬建荣潘文孔霖赵超越和性顺
Owner XIAN MODERN CHEM RES INST
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