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Volume 32 Issue 4
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Article Navigation >  Explosion And Shock Waves  > 2012  >  32(4): 393-398
WANG Peng-fei, HU Shi-sheng. Mechanicalpropertiesoffoamaluminum withdifferentsizes[J]. Explosion And Shock Waves, 2012, 32(4): 393-398. doi: 10.11883/1001-1455(2012)04-0393-06
Citation: WANG Peng-fei, HU Shi-sheng. Mechanicalpropertiesoffoamaluminum withdifferentsizes[J]. Explosion And Shock Waves, 2012, 32(4): 393-398. doi: 10.11883/1001-1455(2012)04-0393-06
shu

Mechanicalpropertiesoffoamaluminum withdifferentsizes

doi: 10.11883/1001-1455(2012)04-0393-06
  • 1.

    CASKeyLaboratoryof MechanicalBehaviorandDesignof Materials,

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NationalNaturalScienceFoundationofChina(90916026)

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  • Corresponding author: HU Shi-sheng
  • Publish Date: 2012-07-25
    Abstract
  • Thedensityuniformityandthecorrespondingsizeeffectwereanalyzedfortwodifferent foamaluminum materials.Analyzedresultsshowthatthemorenon-uniformthedensitydistribution ofthefoamaluminum,themoresignificantthesizeeffect.Butifthedensitydistributionintervalis smallerandinlinewithnormaldistribution,thesizeeffectisweaker.Basedontheassumptionofthe stressuniformityinthesplitHopkinsonpressurebartests,thequartzpieceswereusedtomeasurethe timerequiredbythestressuniformityprocessatthetwoendsofthespecimens.Itisfoundthatthe largertheaxialsizeofthefoamspecimen,themoreevidenttheinfluenceoftheinertialeffect.And therightaxialsizeswerechosentodecoupletheinertialeffectofthespecimen(waveeffect)fromthe strainrateeffect.Theexperimentalresultsdisplaythatthefoam materialshaveobviousstrainrate effects.
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