Animprovedreproducingkernelparticlemethod

fornonlineardynamicalpenetrationprocess

ZHAO Guang-ming; SONG Shun-cheng

doi:10.11883/1001-1455(2010)04-0355-06

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ZHAO Guang-ming, SONG Shun-cheng. Animprovedreproducingkernelparticlemethodfornonlineardynamicalpenetrationprocess[J]. Explosion And Shock Waves, 2010, 30(4): 355-360. doi: 10.11883/1001-1455(2010)04-0355-06

Citation:

ZHAO Guang-ming, SONG Shun-cheng. Animprovedreproducingkernelparticlemethod fornonlineardynamicalpenetrationprocess[J]. Explosion And Shock Waves, 2010, 30(4): 355-360. doi: 10.11883/1001-1455(2010)04-0355-06

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Animprovedreproducingkernelparticlemethod fornonlineardynamicalpenetrationprocess

doi: 10.11883/1001-1455(2010)04-0355-06

1.
KeyLaboratoryonSafeandEffectiveCoalMiningSponsoredbyAnhuiProvinceand
2.
MinistryofEducation,AnhuiUniversityofScienceandTechnology,

Funds:

NationalNaturalScienceFoundationofChina(50804003)

More Information

Corresponding author: ZHAO Guang-ming
Publish Date: 2010-07-25

Abstract

Abstract

TheJohnson-Cookconstitutiverelationsanddamagemodelwereintroducedintothereproducingkernelparticle( RKP)method,andanewinterfacecalculationmethodandacollocationmethodwereproposedtosolvetheproblemsofinterfaceandglidingparticles, realizetheboundaryconditionsandadjusttheparticlevelocityinthecomputationalprocess. TheimprovedRKP methodwas appliedtonumericallyanalyzetheobliquepenetrationprocessofasteelcylindricalpelletintoafixed steelplate.Inthecomputation,thepelletandtargetplateweredividedintokernelparticlesother thanelements.ComputationalresultsshowthattheimprovedRKP methodcanavoidthefiniteelementdeformationinthefiniteelementmethodandtheelementreconstructioninthedamageprocess andenhanceanalysisaccuracyandcomputationalspeed.AndtheimprovedRKPmethodcanbeused toconvenientlyanalyzethelargedeformationandhighstrainratephenomenainpenetrationprocess.
- mechanicsofexplosion,
- penetration,
- RKPM,
- highspeedimpact,
- nonlinearity