Shockwavefeaturesofunderwaterexplosionofexplosiveswithmetalshell

XIANG Da-lin; RONG Ji-li; LIJian; YANG Rong-jie

doi:10.11883/1001-1455(2012)01-0067-06

Volume 32 Issue 1

May 2014

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XIANG Da-lin, RONG Ji-li, LIJian, YANG Rong-jie. Shockwavefeaturesofunderwaterexplosionofexplosiveswithmetalshell[J]. Explosion And Shock Waves, 2012, 32(1): 67-72. doi: 10.11883/1001-1455(2012)01-0067-06

Citation:

XIANG Da-lin, RONG Ji-li, LIJian, YANG Rong-jie. Shockwavefeaturesofunderwaterexplosionofexplosiveswithmetalshell[J]. Explosion And Shock Waves, 2012, 32(1): 67-72. doi: 10.11883/1001-1455(2012)01-0067-06

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Shockwavefeaturesofunderwaterexplosionofexplosiveswithmetalshell

doi: 10.11883/1001-1455(2012)01-0067-06

1.
SchoolofAerospaceEngineering,BeijingInstituteofTechnology,Beijing100081,China;
2.
DepartmentofAutomobileEngineering,GuangxiUniversityofTechnology,
3.
Liuzhou545006,Guangxi,China;

Publish Date: 2012-01-25

Abstract

Abstract

Experimentandnumericalsimulationwereperformedbyusing1kgcylindricalaluminized explosivecasedby6 mmthicksteelandaluminumshells,respectively.Theresultsshowthatthe steelshellcanenhancetheimpulse,shockwaveenergyanddecaytimecomparedwiththealuminum shell.Andtheinfluencesofthesteelshellthicknesswereanalyzed.Withtheincreaseofthethickness, theshockwavewereenhancedandthenweaken,andtherewasalag-effectforthepeakpressure oftheshockwave.Foragivenmassofexplosive,thereliesanoptimumshellthicknessforenhancing theshockwavepeakpressure.Fordifferentmass,themassratioofshelltoexplosiveisanimportant parameterforestimatingtheunderwaterexplosionofcasedexplosive.
- mechanicsofexplosion,
- shockwave,
- underwaterexplosion,
- metalshell