A Simple Method for Reliable Estimation of the Bubble Energy in the Underwater Explosion

Composite explosives containing aluminum/ammonium perchlorate (Al/AP) are widely used for blasting cut of old warship, blasting droll and decoupled charge of blast underwater. The available complex computer codes and empirical methods cannot usually provide a reliable estimation of detonation velocities of explosives containing Al/AP. This work introduces a reliable method for the desk calculation of detonation velocity. The percent of the reacted Al with detonation products and decomposition of AP, as well as composition of the detonation products, are specified according to the distribution of oxygen atoms between Al, C(s), CO(g) and H2(g). The values of the mean absolute percentage error (MAPE) of the new model are lower than one of the best available methods for CHNO explosives (260 experimental data) and CHNOFCl explosives (50 measured data). For composite explosives, CHNOFClAl and CHNOFClAlAP, the MAPE value of the new model is 3.50, corresponding to 55 experimental data, which is much smaller than the MAPE values of the BKW computer code (8.37) and the comparative empirical model (14.20).

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A Simple Approach to Assess the Performance of Non‐ideal Aluminum/Ammonium Perchlorate Composite Explosives as Compared to the Best Available Methods

Jafari

Keshavarz

Ebadpour

2020

Zeitschrift anorg allge chemie

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An improved correlation for reliable assessment of the detonation performance of non‐ideal explosives containing metals and the other solid particulates

Jafari

Keshavarz

Motamedi

et al. 2021

Zeitschrift anorg allge chemie

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Explosives containing metals and the other solid particulates have wide applications in air-blast and underwater explosives. Due to the non-ideal behavior of these explosives, available complex computer codes and empirical methods cannot usually provide a reliable estimation of their detonation velocity. Large experimental data of detonation velocity (392 experimental data) corresponding various types of ideal and non-ideal explosives were collected from different sources to derive a general correlation. The new model assumes partial secondary reactions of metal and active particulates with gaseous products. Optimum values of different products are obtained by maximizing the coefficient of determination (R 2) of the correlation and minimizing the mean absolute percentage error (MAPE) of the calculated results from experimental values of detonation velocities. The MAPE values of the new model and one of the best available methods are 3.55 and 11.16 respectively, for 90 non-ideal explosives, which confirm much high reliability of the new method.

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An effective strategy to improve combustion and pressure output performance of HMX/Al

Wang²,

Mao³

et al. 2022

Combustion and Flame

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A Simple Method for Reliable Estimation of the Bubble Energy in the Underwater Explosion

Cited by 8 publications

References 27 publications

A Simple Approach to Assess the Performance of Non‐ideal Aluminum/Ammonium Perchlorate Composite Explosives as Compared to the Best Available Methods

A Simple Approach to Assess the Performance of Non‐ideal Aluminum/Ammonium Perchlorate Composite Explosives as Compared to the Best Available Methods

An improved correlation for reliable assessment of the detonation performance of non‐ideal explosives containing metals and the other solid particulates

An effective strategy to improve combustion and pressure output performance of HMX/Al

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