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

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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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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