| 非均质固体炸药的冲击引爆临界能量判据研究 |
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| 引用本文： | 赵锋 孙承纬. 非均质固体炸药的冲击引爆临界能量判据研究[J]. 爆炸与冲击, 1993, 13(1): 41-48 |
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| 作者姓名： | 赵锋 孙承纬 |
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| 作者单位： | 西南流体物理研究所冲击波物理与爆轰物理实验室，西南流体物理研究所冲击波物理与爆轰物理实验室，西南流体物理研究所冲击波物理与爆轰物理实验室 成都 610003，成都 610003，成都 610003 |
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| 摘 要： | 分析了冲击引爆过程,研究了非均质炸药受冲击时飞片(或杆)传速给炸药的能量和加载面处高压区域的演化。对于平头飞片,导出了可用于不同直径、不同厚度、不同截面形状的飞片冲击引爆炸药的临界判据,对于几种炸药进行了计算,并同实验进行了比较。研究了轴对称下平板向长杆过渡的临界L/D值,这一数值由最初的1/4及以后的1/12变化为1/8。
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| 关 键 词： | 冲击起爆 爆轰 非均质炸药 固体 |
CRITICAL ENERGY CRITERION FOR THE SHOCK INITIATION OF HETEROGENEOUS EXPLOSIVES |
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| Zhao Feng Sun Chengwei Wei Yuzhang. CRITICAL ENERGY CRITERION FOR THE SHOCK INITIATION OF HETEROGENEOUS EXPLOSIVES[J]. Explosion and Shock Waves, 1993, 13(1): 41-48 |
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| Authors: | Zhao Feng Sun Chengwei Wei Yuzhang |
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| Abstract: | It is studied that how much energy of the primary hydrodynamic shock is transmitted into the explosive by flying-plate or projectile impact and the variation of the high-pressure region on the.impacted surface. The critical energy criterion developed by Walker and Wasley for predicting the response of bare heterogeneous explosive charge to flying-plate impact, is modified for application to flatend plate with different shape of profile and thickness. The modified criterion is calculated for both PBX-9404 and JO-9159 explosives and also changes the L/D ratio of the projectile at which plate behaviour changes to rod behaviour from the currently accepted value of approximately 1/4 or 1/12 to 1/8. |
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| Keywords: | shock initiation criterion detonation heterogeneous explosive high pressure region |
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