Dynamicresponseandexplosionreliefof

reticulatedshellunderblastloading

ZHAI Xi-mei; WANG Yong-hui

doi:10.11883/1001-1455(2012)04-0404-07

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ZHAI Xi-mei, WANG Yong-hui. Dynamicresponseandexplosionreliefofreticulatedshellunderblastloading[J]. Explosion And Shock Waves, 2012, 32(4): 404-410. doi: 10.11883/1001-1455(2012)04-0404-07

Citation:

ZHAI Xi-mei, WANG Yong-hui. Dynamicresponseandexplosionreliefof reticulatedshellunderblastloading[J]. Explosion And Shock Waves, 2012, 32(4): 404-410. doi: 10.11883/1001-1455(2012)04-0404-07

ZHAI Xi-mei, WANG Yong-hui. Dynamicresponseandexplosionreliefofreticulatedshellunderblastloading[J]. Explosion And Shock Waves, 2012, 32(4): 404-410. doi: 10.11883/1001-1455(2012)04-0404-07

Citation:

ZHAI Xi-mei, WANG Yong-hui. Dynamicresponseandexplosionreliefof reticulatedshellunderblastloading[J]. Explosion And Shock Waves, 2012, 32(4): 404-410. doi: 10.11883/1001-1455(2012)04-0404-07

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Dynamicresponseandexplosionreliefof reticulatedshellunderblastloading

doi: 10.11883/1001-1455(2012)04-0404-07

ZHAI Xi-mei^,,
WANG Yong-hui

1.
SchoolofCivilengineering,HarbinInstituteofTechnology,

Funds:

NationalNaturalScienceFoundationofChina(50978077)

More Information

Corresponding author: ZHAI Xi-mei
Publish Date: 2012-07-25

Abstract

Abstract

DynamicfiniteelementsoftwareANSYS/LS-DYNA wasusedtosetupthefinefiniteelementmodelforKiewitt8single- layerreticulatedshellwithaspanof40msubjectedtoblastloading locatedatcentralpoint.Theselectionanddeterminationofmaterialparametersandconstitutivemodels, elementtypes,meshdimensionandgenerationandtheapplicationofsymmetricstructurewere furthervalidatedtoguaranteetheprecisionandfeasibilityofdynamicanalysisforfiniteelementanalysis. Theresponserulesofthestructureunderblastloadingwithdifferentrise-spanrates,standoff distancesandthicknessesofroofboardingwereobtainedthroughthecomparisonoftheplasticstrain, theplasticdevelopmentdegreeanddisplacementofmembers.Inaddition,theeffectofdifferentopeningrates, openingnumbers,openingdistributionsandopeningpositionsonroofboardingontheresponseofstructurewerealsostudiedbasedontheexplosionreliefofroofboa ding.Theresponseresultsoflong- spansingle-layerreticulatedshellstructureundercentralblastloadingweresummarized andtheoptimallayoutschemeofopeningsonroofboardingwasputforward,whichoffersthetheoreticalbasisforreasonabledefensedesignofreticulatedshellstructureforresistingblast.
- solidmechanics,
- dynamicresponse,
- ANSYS/LS-DYNA,
- reticulatedshell,
- explosionrelie