微/纳米粒度级配对炸药爆轰波阵面D_n(κ)关系的影响
Influence of Micro-/Nano-scaled Particle Gradation on the D_n(κ)Relation of Detonation Wave Front
查看参考文献8篇
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文摘
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为了研究微/纳米铝粉/RDX粒度级配对含铝炸药爆轰波阵面曲率效应的影响,采用光学波形扫描及电探针测速法测量了不同微/纳米铝粉/RDX粒度级配的含铝炸药在常温环境下的拟定态爆轰波形及爆速,并基于实验结果分析了炸药爆轰波阵面法向速度D_n与当地曲率κ之间的函数关系。结果表明,采用微/纳米铝粉/RDX粒度级配时,波阵面弯曲程度明显变小,且法向爆速受曲率效应的影响减弱,其中,微/纳米RDX颗粒质量比为50∶25或微/纳米铝粉颗粒质量比为15∶5时波形较为平坦,其最大曲率分别约为0.013和0.014mm~(-1),法向爆速较拟定态爆速的最大降幅分别约为0.03和0.04mm/μs,相当于常规微米试样的56%和61%,反映出波阵面能量因侧向流动而发生的损耗较小。 |
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其他语种文摘
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To study the influence of micro-/nano-scaled aluminum/RDX paticle gradation on the wave front curvature effect of aluminized explosives,the steady wave shapes and the corresponding detonation velocities of the RDXbased aluminized explosives with different micro-/nano-scaled aluminum/RDX particle gradation under normal temperature environment were measured by optical waveform scanning and electrical probe measuring velocity method, and based on the experimental results,the function relation between the normal velocity(D_n)and the local curvature(κ)of the detonation wave front of explosives was analyzed.The results show that using micro-/nano-scaled Al /RDX paticle gradation,the bending degree of wave front is significantly reduced and the normal detonation velocity affected by the curvature is weakened,in which,the waveform of micro-/nano-scaled RDX with mass ratio of 50∶ 25or micro-/nano-scaled Al with mass ratio of 15∶5is flat,their maximum curvatures are about 0.013、 0.014mm~(-1),respectively,and the maximum decrease of the normal detormation velocity compared with steady detonation velovity are 0.03and 0.04mm/μs,which is equivalent to 56%and 61%of the conventional micrometer samples, reflecting that the loss of the wave front energy is smaller due to the lateral flow. |
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来源
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火炸药学报
,2018,41(1):61-65 【核心库】
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DOI
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10.14077/j.issn.1007-7812.2018.01.012
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关键词
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含铝炸药
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粒度级配
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非理想爆轰
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D_n(κ)关系
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曲率效应
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拟定态波形
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地址
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1.
西安近代化学研究所, 陕西, 西安, 710065
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西安近代化学研究所, 火炸药燃烧国防科技重点实验室, 陕西, 西安, 710065
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1007-7812 |
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学科
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力学;武器工业 |
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基金
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国家重大基础科研专项
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文献收藏号
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CSCD:6189133
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参考文献 共
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