Shock temperature dependent rate law for plastic bonded explosives
Shock temperature dependent rate law for plastic bonded explosives
复制标题
塑料粘结炸药的冲击温度相关速率定律
DOI：
10.1063/1.5020172
复制
发表时间：
2018
影响因子：
3.2
通讯作者：
T. Aslam
中科院分区：
文献类型：
--
作者：
T. Aslam
建立了三氨基三硝基苯（TATB）基塑料粘结炸药PBX 9502（95%TATB，5%聚合物粘结剂Kel-F 800）的反应流动模型。这个新设计的模型主要基于材料的冲击温度，沿着局部压力，并准确地模拟了更广泛的爆炸和起爆场景。具体而言，敏感性的变化，初始爆炸温度占自然和一组参数。反应物和产物的状态方程形式以及压力和温度平衡的热力学闭合是从Wescott-Stewart-Davis（WSD）模型[Wescott等人，J.Appl.Phys.98，053514（2005）和“Modeling爆震衍射和PBX-9502中的死区”，第十三届国际爆震研讨会论文集（2006）]。这个新设计的模型，与阿克里乌斯状态依赖于冲击温度，基于WSD状态方程，表示为AWSD。将已有的WSD模型转化为AWSD模型是一个非常简单的过程，建立了三氨基三硝基苯（TATB）基塑料粘结炸药PBX 9502（95%TATB，5%聚合物粘结剂Kel-F 800）的反应流动模型。这个新设计的模型主要基于材料的冲击温度，沿着局部压力，并准确地模拟了更广泛的爆炸和起爆场景。具体而言，敏感性的变化，初始爆炸温度占自然和一组参数。反应物和产物的状态方程形式以及压力和温度平衡的热力学闭合是从Wescott-Stewart-Davis（WSD）模型[Wescott等人，J.Appl.Phys.98，053514（2005）和“Modeling爆震衍射和PBX-9502中的死区”，第十三届国际爆震研讨会论文集（2006）]。这个新设计的模型，与阿克里乌斯状态依赖于冲击温度，基于WSD状态方程，表示为AWSD…
A reactive flow model for the tri-amino-tri-nitro-benzene (TATB) based plastic bonded explosive PBX 9502 (95% TATB, 5% polymeric binder Kel-F 800) is presented. This newly devised model is based primarily on the shock temperature of the material, along with local pressure, and accurately models a broader range of detonation and initiation scenarios. Specifically, sensitivity changes to the initial explosive temperature are accounted for naturally and with a single set of parameters. The equation of state forms for the reactants and products, as well as the thermodynamic closure of pressure and temperature equilibration, are carried over from the Wescott-Stewart-Davis (WSD) model [Wescott et al., J. Appl. Phys. 98, 053514 (2005) and “Modeling detonation diffraction and dead zones in PBX-9502,” in Proceedings of the Thirteenth International Detonation Symposium (2006)]. This newly devised model, with Arrhenius state dependence on the shock temperature, based on the WSD equation of states, is denoted by AWSD. Modifying an existing implementation of the WSD model to the AWSD model in a hydrocode is a rather straightforward procedure.A reactive flow model for the tri-amino-tri-nitro-benzene (TATB) based plastic bonded explosive PBX 9502 (95% TATB, 5% polymeric binder Kel-F 800) is presented. This newly devised model is based primarily on the shock temperature of the material, along with local pressure, and accurately models a broader range of detonation and initiation scenarios. Specifically, sensitivity changes to the initial explosive temperature are accounted for naturally and with a single set of parameters. The equation of state forms for the reactants and products, as well as the thermodynamic closure of pressure and temperature equilibration, are carried over from the Wescott-Stewart-Davis (WSD) model [Wescott et al., J. Appl. Phys. 98, 053514 (2005) and “Modeling detonation diffraction and dead zones in PBX-9502,” in Proceedings of the Thirteenth International Detonation Symposium (2006)]. This newly devised model, with Arrhenius state dependence on the shock temperature, based on the WSD equation of states, is denoted by AWSD...