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The 3rd notification of the 14th conference on Explosion Mechanics Notification of the 14th conference on Explosion Mechanics (supplement) Contributions wanted for the special issue: the Propagation of Waves Explosion and Shock Waves is in the 6th edition of the list of S&T Journals of China List of awrard by Explosion and Shock Waves in 2022 Notification of the 14th conference on Explosion Mechanics
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Volume 33 Issue 6
Apr.  2014
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Article Navigation >  Explosion And Shock Waves  > 2013  >  33(6): 587-593
WangChang-feng, ZhengZhi-jun, YuJi-lin. Dynamiccrushingmodelsforafoamrodstrikingarigidwal[J]. Explosion And Shock Waves, 2013, 33(6): 587-593. doi: 10.11883/1001-1455(2013)06-0587-07
Citation: WangChang-feng, ZhengZhi-jun, YuJi-lin. Dynamiccrushingmodelsforafoamrodstrikingarigidwal[J]. Explosion And Shock Waves, 2013, 33(6): 587-593. doi: 10.11883/1001-1455(2013)06-0587-07
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Dynamiccrushingmodelsforafoamrodstrikingarigidwal

doi: 10.11883/1001-1455(2013)06-0587-07
  • 1.

    CASKeyLaboratoryof MechanicalBehaviorandDesignof Materials,

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NationalNaturalScienceFoundationofChina(11002140,90916026)

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  • Corresponding author: ZhengZhi-jun
  • Publish Date: 2013-11-25
    Abstract
  • Aone-dimensionalshockmodelandathree-dimensionalcell-basedfiniteelementmodelare developedforthedynamiccrushingofametallicfoamrodstrikingarigidwall.Theshockmodelis proposedbyusingthecontinuum-basedstresswavetheoryandassumingarate-independent,rigidnonlinearhardeningplasticconstitutiverelationofthefoam, thenanimplicitexpressionfordeterminingtherelationbetweenthelocalstrainbehindtheshockfrontandtheimpacttimeisobtained. The cell-basedfiniteelementmodelofaclosed-cellaluminumfoamisconstructedbythethree-dimensional Voronoitechnique,anditsdynamiccrushingprocessissimulatedbyusingtheABAQUS/Explicit code.Theleastsquaresmethodisusedtocalculatethedeformationgradientandlocalstrainfield. Comparingwiththesimulationresults,theshockmodelpresentsgoodpredictionsofthestressand strainbehindtheshockfront.
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