Estimation of TNT equivalent of detonating explosive gas
Authors: Andreev S.G., Boiko M.M.
Published in issue: #2(98)/2020
DOI: 10.18698/2308-6033-2020-2-1954
Category: Mechanics | Chapter: Mechanics of Liquid, Gas, and Plasma
The purpose of the study was to compare the genuine work of explosion of detonating gas and trinitrotoluene during their reaction in the form of detonation. The comparison was done in the framework of the concept of the strength of the explosives as the ability of their degradation products to perform work under isentropic expansion, starting from the initial state in which the products of instant explosion are located. The study introduces the calculation data using the gas equation for products of detonation of a detonating gas at different initial pressures, and the Johns-Wilkins-Lee (JWL) equation for trinitrotoluene. With a high-explosive effect characterized by a final pressure of the order of a tenth of a megapascal, in which the explosion products are still able to perform the required form of work, the relative TNT equivalent of detonating gas will rise from about 50% to 110% with an increase in the initial pressure of the gas charge from a normal value to one megapascal.
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