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铝纤维炸药水下爆炸性能研究

DOI: 10.11858/gywlxb.2014.05.008, PP. 557-563

Keywords: 铝纤维炸药,非理想炸药,压力时程曲线,气泡脉动,总能量

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Abstract:

将纯铝用熔喷法制成铝纤维添加到炸药中,得到新型非理想混合炸药,通过水中爆炸实验,测试不同位置铝纤维炸药的压力时程曲线。对压力时程曲线进行分析,计算得到水下不同位置铝纤维炸药的冲击波压力峰值、冲量、冲击波能和气泡能。结果表明:铝纤维炸药的压力时程曲线可采用指数函数与双曲线函数进行分段描述,而用正态分布函数拟合气泡脉动压力曲线的效果不理想;铝纤维炸药水下爆炸比气泡能与总能量的比值为52%~58%,说明向基体炸药RDX中添加铝纤维对总能量有影响;总能量与爆热的比值为75%~85%,小于理论近似值(100%),说明铝纤维炸药爆炸时铝纤维反应不完全且破碎铝纤维消耗了一定的能量。

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