Abstract

The study of the ballistic properties of energetic materials remains vital to ensure safety during their transportation, handling, storage, and processing. It might be a complex, expensive, and time-consuming process to evaluate the ballistic properties experimentally. This work proposes a simple numerical method to predict the ballistic properties of deflagrating energetic materials. Adiabatic and one-dimensional propagation of waves is assumed for theoretical evaluation, and the Rankine–Hugoniot equations are used to obtain correlations. The correlations are obtained in terms of the reactant mass to determine the ballistic properties, namely, the pressure, temperature, and velocity of the particle at the point of ignition. For determining the particle velocity and combustion wave velocity, theoretical correlations are also derived in terms of the mass and distance from the point of ignition. The theoretical calculation is compared and validated with experimental results. The deviation is found to be smaller than 2%. This simple calculation can be used for evaluating and comparing the ballistic properties of various deflagrating energetic materials without the need of performing complicated experiments.

中文翻译：

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评估气体发生剂组合物弹道特性的简单方法

摘要

研究含能材料的弹道特性对于确保其运输、处理、储存和加工过程中的安全至关重要。通过实验评估弹道特性可能是一个复杂、昂贵且耗时的过程。这项工作提出了一种简单的数值方法来预测爆燃含能材料的弹道特性。理论评估假设波的绝热和一维传播，并且使用 Rankine-Hugoniot 方程来获得相关性。根据反应物质量获得相关性以确定弹道特性，即粒子在点火点的压力、温度和速度。为了确定粒子速度和燃烧波速度，理论相关性也可以根据质量和距点火点的距离得出。理论计算与实验结果进行了比较和验证。发现偏差小于2%。这种简单的计算可​​用于评估和比较各种爆燃含能材料的弹道特性，而无需进行复杂的实验。