| 射弹撞击带厚盖板炸药引发爆轰的机制 |
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| 引用本文： | 方青,卫玉章,张克明,张寿齐,李银成.射弹撞击带厚盖板炸药引发爆轰的机制[J].弹道学报,1997(1). |
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| 作者姓名： | 方青 卫玉章 张克明 张寿齐 李银成 |
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| 作者单位： | 西南流体物理研究所，中国工程物理研究院 |
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| 摘 要： | 用二级轻气炮发射钢射弹撞击带厚钢盖板的ＴＮＴ／ＲＤＸ（４０／６０）炸药，借助变象管相机观测炸药中引发的爆轰波阵面波形．覆盖整体盖板的炸药出现凸面爆轰波，而在覆盖预制塞盖板的炸药中出现Ｗ形爆轰波．这一现象表明，冲击效应是前者引发爆轰的主控机制，而宏观剪切效应是后者引发爆轰的主控机制，按冲击引爆和剪切引爆机制分别进行了射弹引爆带整体盖板和预制塞盖板的ＴＮＴ／ＲＤＸ（４０／６０）炸药的反应流体动力学数值模拟计算，计算结果与实验基本吻合
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| 关 键 词： | 射弹，冲击引爆，剪切引爆 |
AN INVESTIGATION ON THE PROJECTILE IMPACT INITI ATION MECHANISM OF DETONATION IN EXPLOSIVE CHARGES COVERDE WITH A THICK STEEL PLATE |
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| Fang Qing Wei Yuzhang Zhang Keming.AN INVESTIGATION ON THE PROJECTILE IMPACT INITI ATION MECHANISM OF DETONATION IN EXPLOSIVE CHARGES COVERDE WITH A THICK STEEL PLATE[J].Journal of Ballistics,1997(1). |
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| Authors: | Fang Qing Wei Yuzhang Zhang Keming |
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| Abstract: | Steel projectiles were launched by a two stage light gas gun to impact onto the TNT/RDX(40/60) explosives covered with a steel thick plate. Detonation of the explosives was identified with the aid of an image converter camera. Divergent detonation wave is observed for explosives covered by an integrity steel plate, which compares a W shape detonation wave front for a pre plugged cover plate. The former evidences shock initiation mechanism dominates while the later the shear initiation mechanism does. Reactive thermodynamic numerical calculations were conducted to simulate with an integrity cover plate and the shear initiations for TNT/RDX(40/60) explosives covered with a pre plugged cover plate. Calculated results agrees fairly well with the experiments. |
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| Keywords: | projectile shock initiation shear initiation |
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