ZHANG Zhong, CHEN Wei-dong, YANG Wen-miao. Thematerialpointmethodforshock-to-detonationtransitionofheterogeneoussolidexplosive[J]. Explosion And Shock Waves, 2011, 31(1): 25-30. doi: 10.11883/1001-1455(2011)01-0025-06
Citation: ZHANG Zhong, CHEN Wei-dong, YANG Wen-miao. Thematerialpointmethodforshock-to-detonationtransitionof heterogeneoussolidexplosive[J]. Explosion And Shock Waves, 2011, 31(1): 25-30. doi: 10.11883/1001-1455(2011)01-0025-06

Thematerialpointmethodforshock-to-detonationtransitionof heterogeneoussolidexplosive

doi: 10.11883/1001-1455(2011)01-0025-06
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NationalNaturalScienceFoundationofChina(10772055)

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  • Corresponding author: CHEN Wei-dong
  • Publish Date: 2011-01-25
  • Withtheignitionandgrowth model,thematerialpointmethod (MPM)computercode calledMPM-SDT wasdevelopedinFORTRAN90,and wasusedtocomputeshock-to-detonation transitionproblems.TheresultsobtainedbyMPM,traditionalalgorithmsandexperimentwerecompared. Thefeasibilityofusingthematerialpointmethodtosolveshock-to-detonationtransitionproblemswasconfirmed. MPMavoidsthemeshdistortionandtanglingissuesassociatedwithLagrangian methodsandtheadvectionerrorsassociatedwithEulerianmethods.Fragmentsofdifferentmaterial (steel,copper,tungsten,etc.)impactingshieldedexplosiveweresimulated.Theinitiationbehaviour oftungstenisthebest,copperisthesecond,andsteelistheworst.Thecriticaldetonatingvelocityis proportionaltothethicknessofshield.
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