Numericalsimulationsoninfluencesofexplosiveproperties

onrockparticlemovemen

QINJian-feng; JIAOQing-jie; NIEJian-xin

doi:10.11883/1001-1455(2012)06-0663-06

Volume 32 Issue 6

Apr. 2014

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Abstract

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Article Navigation > Explosion And Shock Waves > 2012 > 32(6): 663-668

TIAN Jie, HU Shi-sheng. Investigation on mechanical properties of the composites of aluminum foam containing silicone rubber[J]. Explosion And Shock Waves, 2005, 25(5): 400-404. doi: 10.11883/1001-1455(2005)05-0400-05

Citation:

QINJian-feng, JIAOQing-jie, NIEJian-xin. Numericalsimulationsoninfluencesofexplosiveproperties onrockparticlemovemen[J]. Explosion And Shock Waves, 2012, 32(6): 663-668. doi: 10.11883/1001-1455(2012)06-0663-06

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Numericalsimulationsoninfluencesofexplosiveproperties onrockparticlemovemen

doi: 10.11883/1001-1455(2012)06-0663-06

1.
StateKeyLaboratoryofExplosionScienceandTechnology,

Publish Date: 2012-11-25

Abstract

Abstract

TheexplosionprocessesofsphericalPETNchargesinLantiangranitewerenumericallysimulatedbyusingthesoftwareAUTODYN. ParticlevelocityanddisplacementcurvesatdifferentlocationsinLantiangranitewereobtainedandtheinfluencesofexplosivepropertiesonro kparticlemovementwerequalitativelyanalyzed. Thesimulatedparticlevelocityanddisplacementareconsistentwith theexistentexperimentalresults.Thereliesalargedistinctionbetweenparticlevelocitypeaksfrom simulationandexperiment,buttheerrorofparticledisplacementpeakislessthantwentypercent,of whichinfluencedbyvelocitypeak,pulseduration,risetimeandvelocityattenuation.Inthecaseof thesameexplosionenergy,therockparticlevelocitypeaksinducedbytheexplosionoftheHMX, PETN,andTNTchargesinLantiangranitedecreaseinturn.ButtheparticledisplacementpeakinducedbytheexplosionoftheTNTchargeisthebiggest, theparticledisplacementpeakinducedby theexplosionofthePETNchargeistheleast.Thereactionrateofnon-idealexplosivehasanobvious effectontheparticlevelocityanddisplacementpeakswhichincreasewiththeincreasingofthereaction rate.
- mechanicsofexplosion,
- explosivereactionrate,
- particlemovement,
- non-idealexplosive