Method for evaluating explosive power in explosive based on shock wave overpressure and quasi-static pressure

Abstract

The invention discloses a method for evaluating the explosive power in an explosive based on a shock wave overpressure and a quasi-static pressure. Evaluation test of the explosive power on the explosive to be evaluated and TNT, having the same mass, is carried out, an explosive power evaluation parameter kind, a measurement point laying technology and a data processing technology are determined according to the explosion characteristics in the explosive, and the method for calculating the equivalent TNT of the explosive power based on the shock wave overpressure and the quasi-static pressureis established. The method breaks through the shock wave overpressure used as a single index of the explosive power of the explosive, can completely reflect the explosive power characteristics in theexplosive, achieves a scientific and reasonable evaluation result, and can be used for selecting an explosive formula and evaluating the explosive power.

Description

[0001] The invention belongs to the technical field of explosive explosion power testing and evaluation, and specifically relates to a power evaluation method, in particular to a method for evaluating internal explosion power of explosives based on shock wave overpressure and quasi-static pressure. Background technique [0002] For ships, buildings, and other targets with chamber structures, internal explosion is the most common means of damage. The pressure effects under such working conditions are divided into shock wave overpressure and quasi-static pressure. Among them, the quasi-static pressure is formed due to the outward expansion and expansion of the high-temperature and high-pressure gas products produced by the explosion and is restricted by the confined space. It rises relatively slowly and stabilizes to a certain low pressure, and its peak value is much smaller than the peak value of the shock wave overpressure. After the ammunition explodes, the structure of the co...

AI Technical Summary

Problems solved by technology

According to the explosion characteristics of explosives in a confined space, the method determines the types of power evaluation parameters, acquisition methods, measuring point layout methods, and data processing methods, and establishes the equivalent TNT equivalent of explosive internal explosion power based on shock wave overpressure and quasi-static pressure. The calculation method solves the current problems of incomplete evaluation indicators and inconsistent standards of implosion power, and can be used for explosive formula selection, explosion power evaluation, and damage power prediction of implosion ammunition

Images