Experimentalstudyondynamicpropertiesofpolyurethanefoam

subjectedtolargestrainsandlowstrainrates

WU Hao; JIANG Xi-quan

doi:10.11883/1001-1455(2011)04-0392-05

Volume 31 Issue 4

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WU Hao, JIANG Xi-quan. Experimentalstudyondynamicpropertiesofpolyurethanefoamsubjectedtolargestrainsandlowstrainrates[J]. Explosion And Shock Waves, 2011, 31(4): 392-396. doi: 10.11883/1001-1455(2011)04-0392-05

Citation:

WU Hao, JIANG Xi-quan. Experimentalstudyondynamicpropertiesofpolyurethanefoam subjectedtolargestrainsandlowstrainrates[J]. Explosion And Shock Waves, 2011, 31(4): 392-396. doi: 10.11883/1001-1455(2011)04-0392-05

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Experimentalstudyondynamicpropertiesofpolyurethanefoam subjectedtolargestrainsandlowstrainrates

doi: 10.11883/1001-1455(2011)04-0392-05

WU Hao,
JIANG Xi-quan^,

1.
HefeiNewStarAppliedTechnologyResearchInstitute,Hefei230031,Anhui,China

Funds:

NationalBasicResearchProgramofChina(973Program)(2009CB724608)

More Information

Corresponding author: JIANG Xi-quan
Publish Date: 2011-07-25

Abstract

Abstract

Dynamiccompressiontestsforpolyurethanefoam wereperformedonanelongatedsplit Hopkinsonpressurebarsetup,theincidentbarofwhichwassixmeterlongandthestrikerwaseight decimeterlong.Apulseshaperwasusedtoachievethedynamicbalanceinthestressesatthetwo sidesofthespecimens.About600-microsecondpulseswereexperimentallyobtainedandthestressstraincurvesofpolyurethanefoam wereattainedatthestrainrateof520s-1andthestrainof0.15. Andthediscussionswerecarriedoutfortherelationofstrainrateandstressbalanceatthetwosides ofthespecimens.
- mechanicsofexplosion,
- dynamicproperties,
- splitHopkinsonpressurebar,
- polyurethane foam,
- lowstrainrate