Numericalsimulationsonlongrodsandsegmentedrods

penetratingintosteeltarget

LANG Lin; CHEN Xiao-wei; LEI Jing-song

doi:10.11883/1001-1455(2011)02-0127-08

Volume 31 Issue 2

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LANG Lin, CHEN Xiao-wei, LEI Jing-song. Numericalsimulationsonlongrodsandsegmentedrodspenetratingintosteeltarget[J]. Explosion And Shock Waves, 2011, 31(2): 127-134. doi: 10.11883/1001-1455(2011)02-0127-08

Citation:

LANG Lin, CHEN Xiao-wei, LEI Jing-song. Numericalsimulationsonlongrodsandsegmentedrods penetratingintosteeltarget[J]. Explosion And Shock Waves, 2011, 31(2): 127-134. doi: 10.11883/1001-1455(2011)02-0127-08

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Numericalsimulationsonlongrodsandsegmentedrods penetratingintosteeltarget

doi: 10.11883/1001-1455(2011)02-0127-08

1.
SchoolofCivilEngineering,SouthwestUniversityofScience& Technology,
2.
Mianyang 621010,Sichuan,China;

Funds:

NationalNaturalScienceFoundationofChina(10672152)

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Corresponding author: CHEN Xiao-wei
Publish Date: 2011-03-25

Abstract

Abstract

Numericalsimulationswereconductedonthepenetrationofthelongrodwiththelength-radialratioof5, theidealsegmentedrodandthesegmentedrodwithacarriertubeintosemi-infinite steeltargets,respectively,byusingthesoftwareANSYS/LS-DYNA3D.TheLagrangianmethodand Johnson-Cookconstitutivemodelwerecoupledinthenumericalsimulations.Thevon Misesestress contoursweregivenatthetypicaltimesduringthepenetrationandthepenetrationperformancesof theserodswerecompared.Comparisonshowsthatthedominantcontributiontothedepthofpenetration( DOP)ofthesegmentedrodisduetothephaseⅢnon-steadystageratherthanthephaseⅡquasi- steadypenetrationstageinthelong-rodpenetration.Theinterspacingofthesegmentedrodshasa significantimpactontheDOP,whilethecarriertubeonlycontributestotheincreaseofthecraterdiameter.
- solidmechanics,
- depthofpenetration,
- Johnson-Cookmodel,
- segmentedrod,
- semi-infinite steeltarget