结构复合含能破片对柴油油箱的引燃试验研究

Experimental study on ignition of diesel fuel tank by structural composite energetic fragments

围绕Al/PTFE含能材料及其结构复合含能破片对柴油目标的引燃性问题,分别用动态冲击试验和枪发射试验研究了Al/PTFE、铝热剂及其混合配比材料的冲击反应特性及结构复合含能破片对柴油油箱的引燃性能。结果表明:Al/CuO比Al/PT-FE具有更低的反应激发速率,通过在Al/PTFE中添加Al/CuO能显著降低含能材料的冲击反应阈值。枪发射引燃柴油试验显示,分别以Al/PTFE、Al/PTFE-Al/CuO和Al/PTFE-2Al/CuO作为内部装料时,复合破片对柴油油箱持续引燃的速度阈值分别为1246、1171、1098 m/s。混合配比含能破片具有更高引燃能力的原因在于Al/CuO的加入降低了含能材料的整体发火阈值,同时提升了Al/PTFE的释能效率。

Based on the combustionability of Al/PTFE energetic material and its structural composite energetic fragments on diesel fuel,the impact response characteristics of Al/PTFE,thermo and their mixture ratio materials and the combustionability of the structural composite energetic fragments on diesel fuel tanks were studied by dynamic impact test and gun emission test respectively.The results show that Al/CuO has a lower excitation rate than Al/PTFE,and the impact reaction threshold of energetic materials can be significantly reduced by adding Al/CuO to Al/PTFE.The results show that when Al/PTFE,Al/PTFE-AL/CuO and Al/PTFE-2AL/CuO are used as internal charging,the speed thresholds of continuous ignition of diesel fuel tank by composite fragments are 1246 m/s,1171 m/s and 1098 m/s,respectively.The reason for the higher igniting ability of the mixed ratio energetic fragments is that the addition of Al/CuO reduces the overall ignition threshold of the energetic material and improves the energy release efficiency of Al/PTFE.