Anequivalentmethodtocellmagnificationofaluminumhoneycomb underout-of-planecompression

WangZhong-gang; YaoSong

doi:10.11883/1001-1455(2013)03-0269-06

Volume 33 Issue 3

Mar. 2014

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Article Navigation > Explosion And Shock Waves > 2013 > 33(3): 269-275

PENG Qi-xian, LIU Jun, LI Ze-ren, DENG Xiang-yang, KONG Fan-long. An experimental study of increasing the driving power of explosive with restricted charge[J]. Explosion And Shock Waves, 2006, 26(5): 448-451. doi: 10.11883/1001-1455(2006)05-0448-04

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WangZhong-gang, YaoSong. Anequivalentmethodtocellmagnificationofaluminumhoneycomb underout-of-planecompression[J]. Explosion And Shock Waves, 2013, 33(3): 269-275. doi: 10.11883/1001-1455(2013)03-0269-06

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Anequivalentmethodtocellmagnificationofaluminumhoneycomb underout-of-planecompression

doi: 10.11883/1001-1455(2013)03-0269-06

1.
KeyLaboratoryofTrafficSafetyonTrack,MinistryofEducation,
2.
CentralSouthUniversity,Changsha410075,Hunan,China;

Funds:

NationalNaturalScienceFoundationofChina(51275532)

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Corresponding author: WangZhong-gang
Publish Date: 2013-05-25

Abstract

Abstract

Basedonthesixbasicparametersincludingapparentdensity,mass,plateauload,out-ofplaneelasticmodulus, compressionratioandenergyabsorption,themappingrelationsweredeveloped betweenthethickness-lengthratiosofthehexagonalaluminumhoneycombcellsbeforeandaftermagnification. Thedevelopedmappingrelationsdisplaythatthecellularstructureswiththesamethickness- lengthratioshavethesamemechanicalandenergy-absorbingproperties.Bymagnifyingthecell geometricconfigurationsinlengthbutkeepingthesamethickness-lengthratiosatthesametimes,a newanalysisprocesswasputforwardfortheequivalentmagnificationofthealuminum honeycomb cellsfromcompactnesstosparseness.Basedontheaboveanalysisprocess,thetimecostinthenumericalsimulationforthehigh- densitycellularstructureswasdecreasedbyreducingthecellnumbers. Subsequently,eightnumericalmodelsat1-8timesmagnificationofthesamealuminumhoneycomb cellwerebuiltonthebasisoftheexplicitfiniteelementmethodandthesimulatedresultsbythem confirmedthevalidityoftheequivalentmethoddeveloped.Comparisonofthecomputedtimebefore andaftermagnificationshowsthehighefficiencyoftheequivalentmethod.Butwhenthetotalsizein theout-of-planedirectionisapproximatetothecelllength,theequivalentmethodislimited.
- solidmechanics,
- equivalentmethod,
- magnifyingcell,
- aluminumhoneycomb,
- out-of-plane compression

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