Influencesofdensitygradientvariationonmechanicalperformances

ofdensity-gradedhoneycombmaterials

WuHe-xiang; LiuYing

doi:10.11883/1001-1455(2013)02-0163-06

Volume 33 Issue 2

Apr. 2014

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WuHe-xiang, LiuYing. Influencesofdensitygradientvariationonmechanicalperformances ofdensity-gradedhoneycombmaterials[J]. Explosion And Shock Waves, 2013, 33(2): 163-168. doi: 10.11883/1001-1455(2013)02-0163-06

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Influencesofdensitygradientvariationonmechanicalperformances ofdensity-gradedhoneycombmaterials

doi: 10.11883/1001-1455(2013)02-0163-06

WuHe-xiang,
LiuYing

1.
Departmentof Mechanics,SchoolofCivilEngineering,BeijingJiaotongUniversity,
2.
Beijing100044,China

Funds:

NationalNaturalScienceFoundationofChina(10972028,11272046

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Corresponding author: LiuYing
Publish Date: 2013-03-25

Abstract

Abstract

Basedonthetwo-dimensionalringsystem,acomputationalmodelwasdevelopedfordensity- gradedcircularhoneycomb materialsbychangingthewallthicknessesoftherings.Andfurther discussionwascarriedoutfortheinfluencesofthedensitygradientvariationontheenergy-absorption performancesofthedensity-gradedhoneycombmaterialsimpactedbytherigidplateatdifferentvelocities. Theresultsshowthatforthehoneycombmaterialwiththerelativedensitydecreasingfromthe impactendtothefixedend,underahigh-velocityimpact,thehigherthedensitygradient,themore theenergyabsorbedperunitmass.
- solidmechanics,
- densitygradient,
- LS-DYNA,
- densitygradedcircularhoneycombs,
- energyabsorption,
- in-planeimpact

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