Failuremodeanalysisofconcretegravitydam

subjectedtounderwaterexplosion

ZHANG She-rong; WANG Gao-hui; WANG Chao; SUN Bo

doi:10.11883/1001-1455(2012)05-0501-07

Volume 32 Issue 5

Apr. 2014

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Article Navigation > Explosion And Shock Waves > 2012 > 32(5): 501-507

LiLei, MaHong-hao, ShenZhao-wu. Optimaldesignofbiconicallinerstructurebasedonorthogonaldesignmethod[J]. Explosion And Shock Waves, 2013, 33(6): 567-573. doi: 10.11883/1001-1455(2013)06-0567-07

Citation:

ZHANG She-rong, WANG Gao-hui, WANG Chao, SUN Bo. Failuremodeanalysisofconcretegravitydam subjectedtounderwaterexplosion[J]. Explosion And Shock Waves, 2012, 32(5): 501-507. doi: 10.11883/1001-1455(2012)05-0501-07

LiLei, MaHong-hao, ShenZhao-wu. Optimaldesignofbiconicallinerstructurebasedonorthogonaldesignmethod[J]. Explosion And Shock Waves, 2013, 33(6): 567-573. doi: 10.11883/1001-1455(2013)06-0567-07

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Failuremodeanalysisofconcretegravitydam subjectedtounderwaterexplosion

doi: 10.11883/1001-1455(2012)05-0501-07

1.
StateKeyLaboratoryof HydraulicEngineeringSimulationandSafety,

Funds:

NationalNaturalScienceFoundationofChina(51021004)

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Corresponding author: WANG Gao-hui
Publish Date: 2012-09-25

Abstract

Abstract

StrainrateeffectofconcretedamwastakenintoconsiderationintheestablishmentofgravitydamfullycoupledmodelbyusingsoftwareLS- DYNA.Numericalsimulationmethodwasusedto studythedynamicresponseofthedamsubjectedtostrongunderwaterexplosionshockloading.The possiblefailuremodeandcorrespondingfailuremechanismofconcretegravitydamwerediscussed.It isfoundthatthefailuremodesofdamunderblastloadingdependnotonlyonitsowndynamiccharacteristics, butalsoontheunderwaterdepth,theblastcenterdistanceandthebombdosage.Thehead ofagravitydamisoneofweakpartsforantiknockperformance.Possiblefailuremodesofadamincludeexplosiontopitsatupstreamfaceconcretezoneswhichmeetexplosive, explosion-inducedcollapseatcrestanddownstream, brittlepunchingatjointoftheheadandupstreamplanesandnearthe downstreamslopewithpenetratingcracks.
- mechanicsofexplosion,
- failuremode,
- fullycoupledmodel,
- concretegravitydam,
- antiknockperformance,
- underwaterexplosion

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