Dynamicsplittingtestofexpandedpolystyrene(EPS)concrete

HU Jun; WU Xu-tao

doi:10.11883/1001-1455(2011)04-0402-05

Volume 31 Issue 4

May 2014

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HU Jun, WU Xu-tao. Dynamicsplittingtestofexpandedpolystyrene(EPS)concrete[J]. Explosion And Shock Waves, 2011, 31(4): 402-406. doi: 10.11883/1001-1455(2011)04-0402-05

Citation:

HU Jun, WU Xu-tao. Dynamicsplittingtestofexpandedpolystyrene(EPS)concrete[J]. Explosion And Shock Waves, 2011, 31(4): 402-406. doi: 10.11883/1001-1455(2011)04-0402-05

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Dynamicsplittingtestofexpandedpolystyrene(EPS)concrete

doi: 10.11883/1001-1455(2011)04-0402-05

HU Jun,
WU Xu-tao

1.
CivilEngineeringSchool,AnhuiUniversityofArchitecture,Hefei230601,Anhui,China;
2.
SchoolofCivilEngineering,HefeiUniversityofTechnology,Hefei230009,Anhui,China

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Corresponding author: HU Jun
Publish Date: 2011-07-25

Abstract

Abstract

Toexplorethesplittingstrengthofexpandedpolystyrene(EPS)concretewiththedifferent volumeconcentrationsofEPS,Braziliandiscspecimenswerediametrallyimpactedbyusinga74-mmdiametersplitHopkinsonpressurebar( SHPB)atdifferentimpactvelocities.ForeachvolumeconcentrationofEPS, theBraziliandiscspecimensweretestedinthecasesoftwodifferentparticlesizes ofEPS,respectively.Andaccuratelydesignedcushionswereplacedintheinterspacesbetweentheinputandoutputbarsandthespecimenstopreventthespecimensfrombei gcrushedduetothestress concentrationatthetwoendsofthespecimens.Atthesametime,anappropriatepulseshaperwas usedtoensureenoughtimeforthespecimenstoreachanequilibriumstressstateduringtheexperiment. AndthesplittingfailurepatternsofEPSconcretewereanalyzed.Theresultsdisplaythatthe splittingstrengthofEPSconcreteincreaseswiththeincreaseofstressrate;andthatintheEPSconcretewiththelowvolumeconcentrationofEPS, thesplittingstrengthofEPSconcretetakesonacertainparticlesizeeffect, andthiseffectdisappearsgraduallywiththeincreaseoftheEPSvolumeconcentration.
- solidmechanics,
- splittingstrength,
- spiltHopkinsonpressurebar(SHPB),
- EPSconcrete

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