2012 Vol. 32, No. 6
Display Method:
2012, 32(6): 561-567.
doi: 10.11883/1001-1455(2012)06-0561-07
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Abstract:
Experimentswerecarriedouttostudythedynamicresponseoftheliquid-filledthin-wall hemisphericalshellunderimpactusingtheDHR9401drophammerastheloadingdevice.According totheconfigurationsofthehemisphericalshells,theexperimentaldevicewaselaboratelydesignedto...
Experimentswerecarriedouttostudythedynamicresponseoftheliquid-filledthin-wall hemisphericalshellunderimpactusingtheDHR9401drophammerastheloadingdevice.According totheconfigurationsofthehemisphericalshells,theexperimentaldevicewaselaboratelydesignedto...
2012, 32(6): 568-572.
doi: 10.11883/1001-1455(2012)06-0568-05
Abstract:
Toimprovethecomputingefficiencyofthetraditionalantcolonyclusteringalgorithm,from datacombinationmechanism,anabstractionantcolonyclusteringalgorithmwasproposed.Byanalyzingthedataofrockburstsamples, fromtheengineeringanalogythinkingbytheabstractionantc...
Toimprovethecomputingefficiencyofthetraditionalantcolonyclusteringalgorithm,from datacombinationmechanism,anabstractionantcolonyclusteringalgorithmwasproposed.Byanalyzingthedataofrockburstsamples, fromtheengineeringanalogythinkingbytheabstractionantc...
2012, 32(6): 573-580.
doi: 10.11883/1001-1455(2012)06-0573-08
Abstract:
Basedonthedynamicsphericalcavity-expansiontheoryandthetwo-stagepenetrationmodel consistingofcrateringandtunneling,adimensionlessformulawasproposedfornormalpenetration depthofrigidprojectilesintoconcreteandrocktargetsbytakingatruncated-ogivenoseprojec...
Basedonthedynamicsphericalcavity-expansiontheoryandthetwo-stagepenetrationmodel consistingofcrateringandtunneling,adimensionlessformulawasproposedfornormalpenetration depthofrigidprojectilesintoconcreteandrocktargetsbytakingatruncated-ogivenoseprojec...
2012, 32(6): 581-584.
doi: 10.11883/1001-1455(2012)06-0581-04
Abstract:
Intheexperiments,theSiCl4liquidwiththepurityof99percentwaschosenasaprecursor andthegasmixturesofH2andO2asexplosionsources.Therelativemolarquantityoftheprecursor waschangedanditsinfluencesontheproductswereexplored.Andthenano-SiO2powderswerecharacteriz...
Intheexperiments,theSiCl4liquidwiththepurityof99percentwaschosenasaprecursor andthegasmixturesofH2andO2asexplosionsources.Therelativemolarquantityoftheprecursor waschangedanditsinfluencesontheproductswereexplored.Andthenano-SiO2powderswerecharacteriz...
2012, 32(6): 585-591.
doi: 10.11883/1001-1455(2012)06-0585-07
Abstract:
Inordertoinvestigatetheelastic-plasticbulkingofasubmarine,anexistentsimplifiedmodelforasubmarine, namelythering-stiffenedcylindricalshell,waschosenasthesimulationobject, andafluid-solidcouplingmodelwasbuiltbyusingthenonlinear,explicittransientdynamic...
Inordertoinvestigatetheelastic-plasticbulkingofasubmarine,anexistentsimplifiedmodelforasubmarine, namelythering-stiffenedcylindricalshell,waschosenasthesimulationobject, andafluid-solidcouplingmodelwasbuiltbyusingthenonlinear,explicittransientdynamic...
2012, 32(6): 592-598.
doi: 10.11883/1001-1455(2012)06-0592-07
Abstract:
Directinitiationwasachievedviaahigh-voltagecapacitorsparkdischargeandthecriticalenergywasaccuratelyestimatedfromtheanalysisofthecurrentoutput. Experimentswerecarriedout tomeasurethecriticalenergiesofC2H2-O2-ArandC2H2-N2O-Armixturesunderdifferentiniti...
Directinitiationwasachievedviaahigh-voltagecapacitorsparkdischargeandthecriticalenergywasaccuratelyestimatedfromtheanalysisofthecurrentoutput. Experimentswerecarriedout tomeasurethecriticalenergiesofC2H2-O2-ArandC2H2-N2O-Armixturesunderdifferentiniti...
2012, 32(6): 599-604.
doi: 10.11883/1001-1455(2012)06-0599-05
Abstract:
LS-DYNAwasusedtosimulatetheresponsesofdifferentreinforcedstructuressubjectedto underwatercontactexplosionbyconsideringdifferentreinforcementstrengthsandlocations.Strength anddistancefactorsweredefinedtodescribethestrengthandlocationsofstiffeners,resp...
LS-DYNAwasusedtosimulatetheresponsesofdifferentreinforcedstructuressubjectedto underwatercontactexplosionbyconsideringdifferentreinforcementstrengthsandlocations.Strength anddistancefactorsweredefinedtodescribethestrengthandlocationsofstiffeners,resp...
2012, 32(6): 604-608.
doi: 10.11883/1001-1455(2012)06-0604-05
Abstract:
Animproveddifferencemethodofcharacteristicsisdiscribed.Twogroupsofcharacteristic equationswithentropytermsarededucedaccordingtothebasicmechanicsequations,andtheparticle pathlineisaddedintheequationsetasthethirdcharacteristicequation.Theisentropicflow...
Animproveddifferencemethodofcharacteristicsisdiscribed.Twogroupsofcharacteristic equationswithentropytermsarededucedaccordingtothebasicmechanicsequations,andtheparticle pathlineisaddedintheequationsetasthethirdcharacteristicequation.Theisentropicflow...
2012, 32(6): 609-615.
doi: 10.11883/1001-1455(2012)06-0609-07
Abstract:
Thefiniteelementsoftware,ABAQUS/Explicit,wasusedtonumericallyanalyzetheplasticdamageevolutionofatypicalconcretegravitydamsmonolithbyconsideringthefluid- structure couplingbetweenthedamandthewateraswellasthetensionandcompressiondamageintheconcrete. Th...
Thefiniteelementsoftware,ABAQUS/Explicit,wasusedtonumericallyanalyzetheplasticdamageevolutionofatypicalconcretegravitydamsmonolithbyconsideringthefluid- structure couplingbetweenthedamandthewateraswellasthetensionandcompressiondamageintheconcrete. Th...
2012, 32(6): 616-622.
doi: 10.11883/1001-1455(2012)06-0616-07
Abstract:
Toresearchthemotionofabulletintothemusculartissue,thegelatinwasusedtosimulate themusculartissue.Basedonthepropertiesofthegelatin,atwo-dimensionalmotionmodelwasestablishedfortheprojectilepenetratingthegelatininwhichreflectingthedifferencebetweenattack...
Toresearchthemotionofabulletintothemusculartissue,thegelatinwasusedtosimulate themusculartissue.Basedonthepropertiesofthegelatin,atwo-dimensionalmotionmodelwasestablishedfortheprojectilepenetratingthegelatininwhichreflectingthedifferencebetweenattack...
2012, 32(6): 623-628.
doi: 10.11883/1001-1455(2012)06-0623-06
Abstract:
Aseriesofexperimentswerecarriedouttoexploretheeffectsofpackagematerialsonthe performancesofapiezoresistive MEMSaccelerometerunderhigh-gimpact.Fortheaccelerometers packagedwithceramicandstainlesssteel,respectively,theresidualstressandthepiezoresistanc...
Aseriesofexperimentswerecarriedouttoexploretheeffectsofpackagematerialsonthe performancesofapiezoresistive MEMSaccelerometerunderhigh-gimpact.Fortheaccelerometers packagedwithceramicandstainlesssteel,respectively,theresidualstressandthepiezoresistanc...
2012, 32(6): 629-634.
doi: 10.11883/1001-1455(2012)06-0629-06
Abstract:
ByusingasplitHopkinsonpressurebarsystem,thedamageeffectsofporoussandstone specimenswereexperimentallyinvestigatedbyconsideringfluid-solidcoupling.Thedynamicstressstraincurvesoftheporoussandstonespecimenswereobtainedundertherepeatedimpactloadings with...
ByusingasplitHopkinsonpressurebarsystem,thedamageeffectsofporoussandstone specimenswereexperimentallyinvestigatedbyconsideringfluid-solidcoupling.Thedynamicstressstraincurvesoftheporoussandstonespecimenswereobtainedundertherepeatedimpactloadings with...
2012, 32(6): 635-640.
doi: 10.11883/1001-1455(2012)06-0635-06
Abstract:
Toanalyzethesteadynon-idealdetonationwith metalconfinement,theJWLequationof stateisadoptedfortheunreactedexplosiveanddetonationproduct,andthep(,T)equationofstate forthemetal.Andthethree-termLee-Tarverreactionrateisadoptedinthechemicalreactionmodel. B...
Toanalyzethesteadynon-idealdetonationwith metalconfinement,theJWLequationof stateisadoptedfortheunreactedexplosiveanddetonationproduct,andthep(,T)equationofstate forthemetal.Andthethree-termLee-Tarverreactionrateisadoptedinthechemicalreactionmodel. B...
2012, 32(6): 641-646.
doi: 10.11883/1001-1455(2012)06-0641-06
Abstract:
Alargeframecontinuousrotatingmirrorframingcamerawasdevelopedbasedoncoaxial imagingtheoryandcontrollingdefocusingrangetomeettheneedsofstudyonadvancedweapon.It hasframesize30mm18mm,dynamicvisualresolution35mm-1,numberofframes80,framing ratefrom1104to51...
Alargeframecontinuousrotatingmirrorframingcamerawasdevelopedbasedoncoaxial imagingtheoryandcontrollingdefocusingrangetomeettheneedsofstudyonadvancedweapon.It hasframesize30mm18mm,dynamicvisualresolution35mm-1,numberofframes80,framing ratefrom1104to51...
2012, 32(6): 647-652.
doi: 10.11883/1001-1455(2012)06-0647-06
Abstract:
Aseriesofblastexperimentswithandwithoutvibration-isolatingtrencheswereimplementedintheblastcontainmentchamberwithanellipticconewhichhavinganinsidediameterof2mand awallthicknessof0.4m.Andtheverticalandhorizontalgroundvibrationvelocitiesat6different po...
Aseriesofblastexperimentswithandwithoutvibration-isolatingtrencheswereimplementedintheblastcontainmentchamberwithanellipticconewhichhavinganinsidediameterof2mand awallthicknessof0.4m.Andtheverticalandhorizontalgroundvibrationvelocitiesat6different po...
2012, 32(6): 653-657.
doi: 10.11883/1001-1455(2012)06-0653-05
Abstract:
Simulationswereperformedtoanalyzethepropagationandsuperpositionprocessesofstress wavesaimingtothreedifferentchargestructuresundertop,bottomandsimultaneousinitiations,respectively. Thepressureinthemiddleoftheboreholeincreasesgreatlywhenincreasingtheto...
Simulationswereperformedtoanalyzethepropagationandsuperpositionprocessesofstress wavesaimingtothreedifferentchargestructuresundertop,bottomandsimultaneousinitiations,respectively. Thepressureinthemiddleoftheboreholeincreasesgreatlywhenincreasingtheto...
2012, 32(6): 658-662.
doi: 10.11883/1001-1455(2012)06-0658-05
Abstract:
BasedonthenumericalanalysiswithLS-DYNA,thedeformationanddamageofthereinforcedmasonrywallswereinvestigatedbyconsideringthefollowingfactors: wall-borneconstraint, masonrymaterialstrengthgrade,verticalreinforcementratio,height-to-spanratio,loadpeak,dist...
BasedonthenumericalanalysiswithLS-DYNA,thedeformationanddamageofthereinforcedmasonrywallswereinvestigatedbyconsideringthefollowingfactors: wall-borneconstraint, masonrymaterialstrengthgrade,verticalreinforcementratio,height-to-spanratio,loadpeak,dist...
2012, 32(6): 663-668.
doi: 10.11883/1001-1455(2012)06-0663-06
Abstract:
TheexplosionprocessesofsphericalPETNchargesinLantiangranitewerenumericallysimulatedbyusingthesoftwareAUTODYN. ParticlevelocityanddisplacementcurvesatdifferentlocationsinLantiangranitewereobtainedandtheinfluencesofexplosivepropertiesonro kparticlemove...
TheexplosionprocessesofsphericalPETNchargesinLantiangranitewerenumericallysimulatedbyusingthesoftwareAUTODYN. ParticlevelocityanddisplacementcurvesatdifferentlocationsinLantiangranitewereobtainedandtheinfluencesofexplosivepropertiesonro kparticlemove...
2012, 32(6): 669-672.
doi: 10.11883/1001-1455(2012)06-0669-04
Abstract:
Thealuminumpowderof2mparticlesizewastakenasthemediumandaseriesofdustexplosionreliefexperimentswerecarriedoutbylinkingthesteel eliefpipeswith25mminternaldiametertothetopofthecylindricalsteelvesselwith68mminternaldiameterand305mmheight. The steelrelief...
Thealuminumpowderof2mparticlesizewastakenasthemediumandaseriesofdustexplosionreliefexperimentswerecarriedoutbylinkingthesteel eliefpipeswith25mminternaldiametertothetopofthecylindricalsteelvesselwith68mminternaldiameterand305mmheight. The steelrelief...
