Algorithm and Computer Code for Predicting Detonation Wave Parameters of Aluminized Explosives

Abstract

In this work, the detonation wave parameters (i.e., the velocity of detonation and the detonation pressure) of aluminized explosives were calculated by the algorithm and computer code (named DETO). DETO is established based on the chemical equilibrium theory of detonation products, the hydrodynamic theory of the detonation process, and the Becker - Kistiakowsky - Wilson (BKW) equation of state. The aluminum content that reacts with detonation products on the detonation wavefront can be customized according to the user’s assumptions. Compared to experimental data for several aluminized explosive types, the results calculated by DETO have the same, even higher accuracy than those calculated by other computer codes previously published. Specifically, the mean absolute deviation from experimental data is about 2 for the velocity of detonation (VOD) and about 8 for the pressure on the detonation wavefront. In addition, the study also confirmed that about 50 of Al powders participate in the reaction on the detonation wavefront. The software can help researchers select the composition of explosives with and without aluminum according to the given detonation characteristics. 

Keywords:	Equations of state; Parameter estimation; Shock waves; Video on demand; Wavefronts, Aluminized explosives; Chemical equilibriums; Computer codes; Detonation pressure; Detonation product; Detonation waves; Equilibrium theory; Hydrodynamic theory; Velocity of detonation; Waves parameters, Detonation

Description