The Hugoniot and shock sensitivity of a plastic‐bonded TATB explosive PBX 9502
The Hugoniot and shock sensitivity of a plastic‐bonded TATB explosive PBX 9502
复制标题
塑料粘合 TATB 炸药 PBX 9502 的 Hugoniot 和冲击敏感性
DOI：
10.1063/1.340428
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发表时间：
1988
影响因子：
3.2
通讯作者：
W. Seitz
中科院分区：
文献类型：
--
作者：
J. Dick;C. Forest;J. Ramsay;W. Seitz
在0.5 ~ 25 GPa范围内测量了PBX 9502的平面冲击响应。炸药重量为95 - wt。%三氨基-三硝基苯粉末包覆Kel - f800塑料；孔隙率为2.6%。研究了冲击起爆灵敏度、Hugoniot和动态屈服行为。实验进行了爆炸驱动的楔形测试和粒子速度历史测量使用电磁计在光气枪。对楔形试验进行了新的分析。在楔形试验结果的基础上，构造了激波前粒子速度的近似表达式，并将其与Hugoniot函数组合用于各实验的激波路径计算。对近似和Hugoniot参数的优化同时保证了Hugoniot与激波生长的整体运动学以及粒子速度/激波速度数据的一致性。单个激波路径用于检验单曲线累积假设；该假设对PBX 9502无效。r……
The plane shock response of PBX 9502 was measured from 0.5 to 25 GPa. The explosive is 95‐wt. % triamino‐trinitrobenzene powder coated with Kel‐F 800 plastic; porosity was 2.6%. Shock initiation sensitivity, the Hugoniot, and dynamic yield behavior were studied. Experiments done were explosively driven wedge tests and particle velocity history measurements using electromagnetic gauges at a light‐gas gun. A new analysis of the wedge test was implemented. Based on wedge test results, an approximation for the particle velocity at the shock front is constructed, which is used in functional composition with the Hugoniot to calculate the shock path of each experiment. Optimization on the parameters of the approximation and the Hugoniot simultaneously ensures agreement of the Hugoniot with the overall kinematics of the shock growth as well as the particle velocity/shock velocity data. The individual shock paths are used to examine the single‐curve buildup assumption; the assumption is not valid for PBX 9502. A r...