| 新型高能钝感炸药JBO-9X在较高冲击压力下冲击起爆过程的实验研究 |
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| 引用本文： | 张涛,谷岩,赵继波,贺红亮,刘高旻,伍星. 新型高能钝感炸药JBO-9X在较高冲击压力下冲击起爆过程的实验研究[J]. 火炸药学报, 2016, 0(1): 28-33. DOI: 10.14077/j.issn.1007-7812.2016.01.004 |
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| 作者姓名： | 张涛 谷岩 赵继波 贺红亮 刘高旻 伍星 |
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| 作者单位： | 1. 中国工程物理研究院流体物理研究所,四川 绵阳,621900;2. 中国工程物理研究院总体工程研究所,四川 绵阳,621900 |
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| 基金项目： | 国家安全学术基金(U1230116) |
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| 摘 要： | 采用高速扫描相机和楔形炸药构型,对新型高能钝感炸药JBO-9X的冲击起爆过程进行了实验研究;采用LS-DYNA软件对实验结果进行了数值模拟验证。结果表明,在6.9GPa的入射冲击压力下,JBO-9X炸药的冲击转爆轰时间为1.5μs,冲击到爆轰的距离为7.9mm;当冲击波刚进入炸药时,炸药发生化学反应的比例(λ)为0.2,随着冲击波进入炸药的距离增加,受试炸药中发生化学反应的比例逐步增加。在实验条件下,入射冲击波压力为6.85GPa时,JBO-9X炸药的冲击到爆轰距离为8.0mm。化学反应比例随冲击波进入炸药距离的增长曲线与实验基本相同。
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| 关 键 词： | 爆炸力学 JBO-9X 高能钝感炸药 冲击起爆 高速扫描相机 冲击波 LS-DYNA软件 |
Experimental Study on Shock Initiation Process of a New Insensitive High Explosive JBO-9x under High Impact Pressure |
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| Abstract: | A high-speed scanning camera and wedge-shaped explosive configuration were used to study the shock initiation process of a new insensitive high explosive JBO-9X.The experimental results were numerically simulated and verified by LS-DYNA software.Results show that under the incident shock pressure of 6.9GPa,the time of shock to detonation of JBO-9X is 1.5μs and the distance of shock to detonation is 7.9mm.When the shock wave just goes into the explosive,the ratio of occurred chemical reaction (λ)is 0.2.With increasing the distance of shock wave entering the explosive,the ratio of the chemical reaction occurred in the tested explosive increases gradually. Under the experimental conditions,when the incident shock pressure is 6.85GPa,the distance of shock to detonation of JBO-9X is 8.0 mm.The growth curve of chemical reaction ratio with the distance of the shock wave entering the explosive is basically the same as the experiment. |
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| Keywords: | explosion mechanics JBO-9X insensitive high explosive shock initiation high-speed scanning camera chock wave LS-DYNA software |
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