AnadaptiveaxisymmetricFEM-SPHcouplingalgorithmand

itsapplicationtohighvelocityimpactsimulation

XIAO Yi-hua; HU De-an; HAN Xu; YANG Gang

doi:10.11883/1001-1455(2012)04-0384-09

Volume 32 Issue 4

Apr. 2014

Turn off MathJax

Article Contents

Article Navigation > Explosion And Shock Waves > 2012 > 32(4): 384-392

XIAO Yi-hua, HU De-an, HAN Xu, YANG Gang. AnadaptiveaxisymmetricFEM-SPHcouplingalgorithmanditsapplicationtohighvelocityimpactsimulation[J]. Explosion And Shock Waves, 2012, 32(4): 384-392. doi: 10.11883/1001-1455(2012)04-0384-09

Citation:

XIAO Yi-hua, HU De-an, HAN Xu, YANG Gang. AnadaptiveaxisymmetricFEM-SPHcouplingalgorithmand itsapplicationtohighvelocityimpactsimulation[J]. Explosion And Shock Waves, 2012, 32(4): 384-392. doi: 10.11883/1001-1455(2012)04-0384-09

Citation:

PDF( 3976 KB)

AnadaptiveaxisymmetricFEM-SPHcouplingalgorithmand itsapplicationtohighvelocityimpactsimulation

doi: 10.11883/1001-1455(2012)04-0384-09

1.
StateKeyLaboratoryofAdvancedDesignand ManufacturingforVehicleBody,

Funds:

NationalNaturalScienceFoundationofChina(10902038)

More Information

Corresponding author: HU De-an
Publish Date: 2012-07-25

Abstract

Abstract

Anadaptiveaxisymmetricfiniteelementmethod(FEM)-smoothedparticlehydrodynamics (SPH)couplingalgorithmisproposedtoaccuratelyandefficientlysimulatehighvelocityimpactproblems. ItusesFEMtocalculateatthebeginning.Duringthedeformationprocess,itautomatically convertsdistortedelementstoparticlesandusesSPHforcalculationattheseregionswheredistorted elementsappear.Intheadaptivecouplingalgorithm,anewcouplingalgorithmisappliedtolinkelementsandparticlesaccurately, andaminimuminterioranglecriterioncombinedwithagroup-based conversionmannerisadoptedtoconvertelementstoparticles.Severaltypicalhighvelocityimpact problemsarecalculated.Firstly,thestresswavepropagationiscalculatedtotesttheaccuracyofthe newelement-particlecouplingalgorithm.Then,theTaylortestiscalculatedtovalidatetheadaptive couplingalgorithmandthecorrespondingcode.Finally,thesimulationofprojectilespenetratingaluminumandconcreteplatesispresented. Theresultsshowthattheadaptivecouplingalgorithmisaccurateandefficientanditisverysuitableforthesimulationofhighvelocityimpact.
- solidmechanic,
- adaptivecoupling,
- FEM,
- highvelocityimpact,
- SPH