Calibration of Jones–Wilkins–Lee equation of state for unreacted explosives with shock Hugoniot relationship and optimization algorithm

IF 2.7 3区 物理与天体物理 Q2 PHYSICS, APPLIED Journal of Applied Physics Pub Date : 2024-09-19 DOI:10.1063/5.0230362
Hao Cui, Junan Wu, Yuxin Xu, Hao Zhou, Rui Guo
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Abstract

The unreacted equation of state (EOS) for an unreacted explosive can provide fundamental information to understand any analytical model for the shock and initiation process. Based on the Hugoniot expression in Jones–Wilkins–Lee (JWL) form derived from the Mie–Grüneisen EOS and conservation equation across the shock wave, a three-point calibrating method to determine the JWL EOS parameters for unreacted explosives was developed using intelligent algorithms and shock Hugoniot relationship of the explosives considered. The calibration method proposed utilizes the back propagation neural network to predict the nonlinear system composed of different JWL parameter sets; the genetic algorithm is then used to find the optimal solution of the JWL parameter set. Unreacted JWL EOS parameters of eight typical explosives were calibrated using the calibrating method developed, and an excellent agreement can be observed between JWL EOS and experimental p–v curves for all eight explosives selected, indicating the high accuracy of the three-point calibrating method. However, the effectiveness of the three-point calibrating method was experimentally validated with the experimental data measured from the shock tests of the dihydroxylammonium 5,5′-bitetrazole-1,1′-dioxide (TKX-50)-based explosive, where the JWL p–v curve derived from the three-point calibrating method is in good agreement with the experimental curve.
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用冲击休格尼奥关系和优化算法校准未反应炸药的琼斯-威尔金斯-李状态方程
未反应炸药的未反应状态方程(EOS)可为理解冲击和起爆过程的任何分析模型提供基本信息。根据从 Mie-Grüneisen EOS 和整个冲击波守恒方程导出的琼斯-威尔金斯-李(JWL)形式的休伊特表达式,利用智能算法和所考虑的爆炸物的冲击休伊特关系,开发了一种三点校准方法,以确定未反应爆炸物的 JWL EOS 参数。所提出的校准方法利用反向传播神经网络预测由不同 JWL 参数集组成的非线性系统,然后利用遗传算法找到 JWL 参数集的最优解。利用所开发的校准方法对八种典型炸药的未反应 JWL EOS 参数进行了校准,结果表明所选八种炸药的 JWL EOS 与实验 p-v 曲线之间具有极好的一致性,表明三点校准法具有很高的准确性。不过,三点校准法的有效性要通过实验验证,实验数据来自 5,5′-二羟基四唑-1,1′-二氧化物(TKX-50)基二羟基铵炸药的冲击试验,三点校准法得出的 JWL p-v 曲线与实验曲线吻合良好。
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来源期刊
Journal of Applied Physics
Journal of Applied Physics 物理-物理:应用
CiteScore
5.40
自引率
9.40%
发文量
1534
审稿时长
2.3 months
期刊介绍: The Journal of Applied Physics (JAP) is an influential international journal publishing significant new experimental and theoretical results of applied physics research. Topics covered in JAP are diverse and reflect the most current applied physics research, including: Dielectrics, ferroelectrics, and multiferroics- Electrical discharges, plasmas, and plasma-surface interactions- Emerging, interdisciplinary, and other fields of applied physics- Magnetism, spintronics, and superconductivity- Organic-Inorganic systems, including organic electronics- Photonics, plasmonics, photovoltaics, lasers, optical materials, and phenomena- Physics of devices and sensors- Physics of materials, including electrical, thermal, mechanical and other properties- Physics of matter under extreme conditions- Physics of nanoscale and low-dimensional systems, including atomic and quantum phenomena- Physics of semiconductors- Soft matter, fluids, and biophysics- Thin films, interfaces, and surfaces
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