Acouplingmodelforcomputingplasmapressure

inducedbylasershockpeening

WU Xian-qian; DUAN Zhu-ping; HUANG Chen-guang; SONG Hong-wei

doi:10.11883/1001-1455(2012)01-0001-07

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WU Xian-qian, DUAN Zhu-ping, HUANG Chen-guang, SONG Hong-wei. Acouplingmodelforcomputingplasmapressureinducedbylasershockpeening[J]. Explosion And Shock Waves, 2012, 32(1): 1-7. doi: 10.11883/1001-1455(2012)01-0001-07

Citation:

WU Xian-qian, DUAN Zhu-ping, HUANG Chen-guang, SONG Hong-wei. Acouplingmodelforcomputingplasmapressure inducedbylasershockpeening[J]. Explosion And Shock Waves, 2012, 32(1): 1-7. doi: 10.11883/1001-1455(2012)01-0001-07

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Acouplingmodelforcomputingplasmapressure inducedbylasershockpeening

doi: 10.11883/1001-1455(2012)01-0001-07

1.
KeyLaboratoryforHydrodynamicsandOceanEngineering,Instituteof Mechanics,

Funds:

NationalNaturalScienceFoundationofChina(10972228,11002150,91016025)

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Corresponding author: HUANG Chen-guang
Publish Date: 2012-01-25

Abstract

Abstract

Pressureprofileofplasmaisoneofthemostimportantfactorsfortheeffectsoflasershock peening.Inthepresentresearch,aone-dimensionalcouplingmodelforcomputingplasmapressureis establishedbasedonenergyconservationconditioninthesystem,inwhichtheinterfacevaporization velocityandthenonlinearrelationshipbetweentheshockpressureandthesurfaceparticlevelocityare considered.Then,theexplicitdifferenceprogramandtheLS-DYNApackageareusedtocalculatethe plasmapressurefordifferentlaserpowerdensitywithgiventime-historyprofile.Thesimulationresultsshowagoodagreementwiththeexperimentalresults, whichindicatestheconsistencyoftheanalyticalmodel. Therefore,aneffectivemethodisprovidedtopredicttheplasmapressureinducedby lasershockpeening.
- fluidmechanics,
- pressureprofileofplasma,
- couplinganalyticalmodel,
- lasershockpeening,
- particlevelocity,
- interfacevaporizationvelocity