-
摘要: 为了确定爆轰波法向速度Dn与当地曲率 的定量关系,用光电联合测试法研究质量配比分别为 60/40、50/50及40/60时HMX/TNT 炸药的Dn- 关系。结果表明,爆轰波延滞距离z 随TNT 含量的增加 而增大;爆轰波延滞距离z 随着炸药密度 的增大而减小;随着TNT 的含量增加,Dn- 曲线的斜率逐渐增 大,且斜率增大的速率为正值。为了减少实验标定费用,引入了新变量Rt,将Dn- 关系推广为Dn(,Rt)关 系,并给出相应Rt-z-r 关系。Abstract: Aimedatthefactthatitisnecessarytodeterminethequantitativerelationbetweenthelocal normaldetonationwavespeedDnandthetotalcurvaturewhendetonationshockdynamics(DSD)is usedtostudynonidealdetonation,steady-statedetonationvelocitiesandwaveshapesweremeasured forHMX/TNTcastexplosivesatmassratios60/40,50/50and40/60.Resultsshowthatdetonation lagzincreaseswiththeincreaseofTNTmasspercentageanditdecreasewiththeincreaseofexplosive density;andthatwiththeincreaseofTNTmasspercentage,theslopesofDn()curvesbecomelarge andthechangeratesoftheslopesarepositive.Forreducingthecostsoftheexperiment,thegeneral Dn(,Rt)lawwasinducedfromtherelationofDn(),andtherelationofRt-z-rwasobtainedbythe Dn(,R t)law.
-
Key words:
- mechanicsofexplosion /
- nonidealdetonation /
- massratio /
- HMX/TNT /
- DSD
计量
- 文章访问数: 2847
- HTML全文浏览量: 231
- PDF下载量: 220
- 被引次数: 0