铝纤维对黑索今水下爆炸性能的影响

将铝纤维添加到RDX中得到新型非理想炸药,并与RDX进行水下爆炸对比实验,得到2种炸药在不同位置的压力时程曲线,经过分析计算得到两者水下爆炸的冲击波压力峰值、冲量、冲击波能、气泡脉动周期以及气泡能。结果表明:距离药柱相同位置处,铝纤维炸药的压力峰值低于RDX,铝纤维炸药的冲击波冲量高于RDX,其差值受离药柱的距离影响不大。与RDX相比,铝纤维炸药的比冲击波能降低了2%~5.2%,比气泡能提高了9.4%~23.36%,总能量平均提高了3.5%。铝纤维炸药比气泡能与总能量的比值为55%~60%,高于RDX的50%~53%,其总能量与爆热比值为74%~84%,低于RDX的89%~95%。

Effectofaluminumfiberonunderwater detonationperformanceofRDX

Anewnon-idealexplosivewasobtainedbyaddingaluminumfibertoRDX.Pressure-time curvesweremeasuredindifferentregionsbyunderwaterexplosionexperimentsofaluminumfiberexplosiveandRDX. Peakpressure,impulse,shockwaveenergy,bubbleimpulsionperiodandbubble energywereobtainedbyanalyzingthecurves.Thepeakpressureofthenewexplosiveislowerthan thatofRDXinsameregions.Theshockwaveimpulsebecomeslagerandthedistancedoesnotmuch affectthedifference.ComparedwithRDX,thespecificshockwaveenergyofthenewexplosivedecreasesby2%~ 5.2%,thespecificbubbleenergyrisesby9.4%~23.36%,thespecificexplosionenergyincreasesaveragelyby3.5%. Thespecificbubbleenergyis55%~60% ofexplosionenergy, whichishigherthantheratio50%~53%ofRDX.Thespecificexplosionenergyis74%~84%ofexplosionheat, whichislowerthantheratio89%~95% ofRDX.