Dynamicdamageprocessofanundergroundprotectivestructure

subjectedtoimpactloading

LI Xu-dong; LIU Kai-xin; YAN Hong-hao; LI Xiao-jie; WANG Shuai

doi:10.11883/1001-1455(2010)05-0541-05

Volume 30 Issue 5

May 2014

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Article Navigation > Explosion And Shock Waves > 2010 > 30(5): 541-545

LI Xu-dong, LIU Kai-xin, YAN Hong-hao, LI Xiao-jie, WANG Shuai. Dynamicdamageprocessofanundergroundprotectivestructuresubjectedtoimpactloading[J]. Explosion And Shock Waves, 2010, 30(5): 541-545. doi: 10.11883/1001-1455(2010)05-0541-05

Citation:

LI Xu-dong, LIU Kai-xin, YAN Hong-hao, LI Xiao-jie, WANG Shuai. Dynamicdamageprocessofanundergroundprotectivestructure subjectedtoimpactloading[J]. Explosion And Shock Waves, 2010, 30(5): 541-545. doi: 10.11883/1001-1455(2010)05-0541-05

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Dynamicdamageprocessofanundergroundprotectivestructure subjectedtoimpactloading

doi: 10.11883/1001-1455(2010)05-0541-05

1.
ChinaAero-polytechnologyEstablishment,Beijing100028,China;
2.
StateKeyLaboratoryofTurbulenceandComplexSystems,Departmentof Mechanics&
3.
AerospaceEngineering,CollegeofEngineering,PekingUniversity,Beijing100871,China;

Funds:

NationalNaturalScienceFoundationofChina(10572002,10732010)

More Information

Corresponding author: LI Xu-dong
Publish Date: 2010-09-25

Abstract

Abstract

Byadoptingthedigitalhigh-speedphotographyanddynamicelectricalmeasurementtechnique, ascale-reducedmodelwasdesignedtoexperimentallyinvestigatethedynamicdamageprocess ofahorseshoe-shapedundergroundprotectivestructureunderimpactloading.Experimentalresults indicatethatthebottomistheweakestpartofthehorseshoe-shapedstructureandneedbeprotected excessively.Theshockresistanceofthiskindofstructurecanbeevidentlyimprovedbyaddingsteel platesorotherhigh-strengthprotectingmaterialsinitsinnerlayer.Thescale-reducedexperimentwas simulatednumericallybyusingtheLS-DYNAfiniteelementsoftware.Thenumericalresultsareinagreementwiththeexperimentalresults. ItdisplaysthattheLS-DYNAfiniteelementsoftwareisfeasibletobeusedtosimulatethedynamicdamageprocessofthescale- reducedmodelforhorseshoeshapedundergroundprotectivestructures.
- solidmechanics,
- dynamicdamage,
- digitalhigh-speedphotography,
- undergroundprotectivestructure,
- anti-damage