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含能材料  2005 

常温下钝感炸药爆轰波传播的曲率效应研究

Keywords: 爆炸力学,钝感炸药,曲率效应,定态波形,定态爆速

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Abstract:

钝感炸药爆轰波的传播与波阵面当地平均曲率密切相关,为研究这种爆轰波传播的非理想行为,本文通过光电联合测试方法测量了常温下Φ10mm、Φ12.5mm、Φ15mm和Φ30mm的钝感药柱的定态爆速和波形,根据拟合的爆轰波形,分析了波阵面法向速度Dn与当地平均曲率κ之间的关系。结果表明,定态爆速随药柱直径的增大而增大,当波阵面当地平均曲率κ较小时,法向爆速Dn只与κ有关,而当κ较大时,法向爆速Dn不仅与当地平均曲率κ有关,而且还与药柱直径有关。

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