Experimentalresearchondestructionmechanismof

large-scalefloating-roofoiltankunderblastloading

LU Sheng-zhuo; WANG Wei; ZHANG Bo-yi

doi:10.11883/1001-1455(2011)02-0158-07

Volume 31 Issue 2

May 2014

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Article Navigation > Explosion And Shock Waves > 2011 > 31(2): 158-164

YAN Cheng, OU Zhuo-cheng, DUAN Zhuo-ping, HUANG Feng-lei. Strain-rateeffectsondynamicstrengthofbrittlematerials[J]. Explosion And Shock Waves, 2011, 31(4): 423-427. doi: 10.11883/1001-1455(2011)04-0423-05

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LU Sheng-zhuo, WANG Wei, ZHANG Bo-yi. Experimentalresearchondestructionmechanismof large-scalefloating-roofoiltankunderblastloading[J]. Explosion And Shock Waves, 2011, 31(2): 158-164. doi: 10.11883/1001-1455(2011)02-0158-07

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Experimentalresearchondestructionmechanismof large-scalefloating-roofoiltankunderblastloading

doi: 10.11883/1001-1455(2011)02-0158-07

1.
CollegeofCivilEngineering,HarbinInstituteofTechnology,

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NationalNaturalScienceFoundationofChina(51078115)

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Corresponding author: LU Sheng-zhuo
Publish Date: 2011-03-25

Abstract

Abstract

Toexplorethedynamicresponseofasuper-largeoiltankaffectedbygaseousmixtureexplosion, impactexperimentswereconductedonfloating-roofoil-tank modelsimpactedbysteadyblast wave,whichwasinducedbythereactionofacetylene/airmixturespropagatingalongapipe,ininflammablemixturedetonationfacilities. Theoverpressureload,dynamicstrainandvibrationaccelerationhistoriesweremeasuredatthewallsoftheoil- tankmodels.Thedestructionmechanismsofthe large-scalefloating-roofoiltankunderblastloadingwereanalyzed.Inthedeformationprocessofthe tankstructuresubjectedtoinflammablegasexplosion,theinnerliquidisinducedtogeneratecompressivewavetointensivelycollidewiththewallofthetank, thebackwallpressuretransmittedby liquidcollisionisinthesameorderofmagnitudewiththeblastwavepressureonthefront,buttheactuationtimeoftheformerislonger. Meanwhile,thetopoftheoil-tankinnerwallontheblastsideis intensilestate,encountersthemaximumtensilestrain,andhastheweakestresistancetoexplosion andblastloadingforthewholestructure.
- mechanicsofexplosion,
- destructionmechanism,
- blastloading,
- floating-roofoiltank,
- dynamicstrain,
- vibrationacceleration,
- inflammablemixtur

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