2011 Vol. 31, No. 5
Display Method:
2011, 31(5): 449-454.
doi: 10.11883/1001-1455(2011)05-0449-06
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Abstract:
Aseriesoftestswereconductedontheeffectsofexplosioninsidethetunnelentrancetoexploretheshockwavepropagationinsidethemultilevelga lerystructuresinthedifferentcasesofthe endsopenorclose.Andtheloadsactingontheprotectivedoorandthesecondaryshockwaveevolveme...
Aseriesoftestswereconductedontheeffectsofexplosioninsidethetunnelentrancetoexploretheshockwavepropagationinsidethemultilevelga lerystructuresinthedifferentcasesofthe endsopenorclose.Andtheloadsactingontheprotectivedoorandthesecondaryshockwaveevolveme...
2011, 31(5): 455-462.
doi: 10.11883/1001-1455(2011)05-0455-08
Abstract:
Thestress-straincurvesofthe304and316Lstainlesssteelslaser-weldedmaterialswereobtainedbyusingtheequalstraintestmethod. Andobvioushardeningbehaviorsduetothetinycrystal oftheweldedmaterialswerenoticed.Thedynamicmechanicalpropertiesofthe304,316Landwelded...
Thestress-straincurvesofthe304and316Lstainlesssteelslaser-weldedmaterialswereobtainedbyusingtheequalstraintestmethod. Andobvioushardeningbehaviorsduetothetinycrystal oftheweldedmaterialswerenoticed.Thedynamicmechanicalpropertiesofthe304,316Landwelded...
2011, 31(5): 463-468.
doi: 10.11883/1001-1455(2011)05-0463-06
Abstract:
Aseriesofexperimentandsimulationwerecarriedouttoexplorethepeakpressuredistributioninthenearfieldofthecylindricalchargeunderwat rexplosioninthetwocasesofnine-pointoffcenterdetonationandcentraldetonation. Theshockwavepeakpressuresintheabovetwocaseswere...
Aseriesofexperimentandsimulationwerecarriedouttoexplorethepeakpressuredistributioninthenearfieldofthecylindricalchargeunderwat rexplosioninthetwocasesofnine-pointoffcenterdetonationandcentraldetonation. Theshockwavepeakpressuresintheabovetwocaseswere...
2011, 31(5): 469-474.
doi: 10.11883/1001-1455(2011)05-0469-06
Abstract:
Tounderstandandimprovethecrashworthinessofflexiblecontainers,thedynamicbehaviorsofthecontainerunderimpactloadingwerenumericallysimulated. ThewatermovementandsloshinginthecontainerweremodeledbyusingtheALEmethod. Theinteractionbetweenthecontainer andfl...
Tounderstandandimprovethecrashworthinessofflexiblecontainers,thedynamicbehaviorsofthecontainerunderimpactloadingwerenumericallysimulated. ThewatermovementandsloshinginthecontainerweremodeledbyusingtheALEmethod. Theinteractionbetweenthecontainer andfl...
2011, 31(5): 475-480.
doi: 10.11883/1001-1455(2011)05-0475-06
Abstract:
Basedonthelimitequilibrium methodforrigidblockandtheequivalentaccelerationmethod, accordingtotheattenuationprincipleofthepeakblastingvibrationvelocityandthetimehistory ofthevelocity,thetime-historycurveofthedynamicstabilitysafetyfactoroftheslopeunder...
Basedonthelimitequilibrium methodforrigidblockandtheequivalentaccelerationmethod, accordingtotheattenuationprincipleofthepeakblastingvibrationvelocityandthetimehistory ofthevelocity,thetime-historycurveofthedynamicstabilitysafetyfactoroftheslopeunder...
2011, 31(5): 481-489.
doi: 10.11883/1001-1455(2011)05-0481-09
Abstract:
Aimedatnormalandobliquepenetrationintosemi-infiniteconcrete/limestonetargetsbya high-speedprojectile,anaxisdragforcewasemployedtoreflectthecontinuousvariationofthenose shape.Withconsideringthetransverseloadinthecasesofasymmetricalmassabrasionandobliq...
Aimedatnormalandobliquepenetrationintosemi-infiniteconcrete/limestonetargetsbya high-speedprojectile,anaxisdragforcewasemployedtoreflectthecontinuousvariationofthenose shape.Withconsideringthetransverseloadinthecasesofasymmetricalmassabrasionandobliq...
2011, 31(5): 490-496.
doi: 10.11883/1001-1455(2011)05-0490-07
Abstract:
Basedonthemodeofductileholeexpansion,theChen-and-LimodelandForrestal-and-Warrenmodelwereanalyzedforarigidsharp- nosedprojectileperforatingductilemetallictargetplates.Analysisshowsthatthesetwomodelshavethesameformula, buttheirapplicablerangesarediffer...
Basedonthemodeofductileholeexpansion,theChen-and-LimodelandForrestal-and-Warrenmodelwereanalyzedforarigidsharp- nosedprojectileperforatingductilemetallictargetplates.Analysisshowsthatthesetwomodelshavethesameformula, buttheirapplicablerangesarediffer...
2011, 31(5): 497-503.
doi: 10.11883/1001-1455(2011)05-0497-07
Abstract:
A14.5-mmslipchambergunwasusedtoshootthesphericalsteelprojectilewiththediameterof6mmtopenetrateintosteel- aluminumorsteel-aluminum-steelexplosively-weldedplates.The LS-DYNA3Dsoftwarewasappliedtosimulatethesepenetrationprocesses,andthetie-breakmodel wa...
A14.5-mmslipchambergunwasusedtoshootthesphericalsteelprojectilewiththediameterof6mmtopenetrateintosteel- aluminumorsteel-aluminum-steelexplosively-weldedplates.The LS-DYNA3Dsoftwarewasappliedtosimulatethesepenetrationprocesses,andthetie-breakmodel wa...
2011, 31(5): 504-509.
doi: 10.11883/1001-1455(2011)05-0504-06
Abstract:
StaticanddynamicmechanicalpropertiesofAISI304andAISI316Ldissimilarstainlesssteel laserweldedjointswereexperimentallystudiedbyMTSandanimprovedSHTBdevice.AnewSHTB clampingmethodfortheweldedstructurewasestablished.Thedynamicstrain-stresscurveswereobtain...
StaticanddynamicmechanicalpropertiesofAISI304andAISI316Ldissimilarstainlesssteel laserweldedjointswereexperimentallystudiedbyMTSandanimprovedSHTBdevice.AnewSHTB clampingmethodfortheweldedstructurewasestablished.Thedynamicstrain-stresscurveswereobtain...
2011, 31(5): 510-515.
doi: 10.11883/1001-1455(2011)05-0510-06
Abstract:
Anexperimentonthegasoline-airmixturesecondarythermalignitionwasoperatedunder theconditionsthattheresidualgasformedafterthefirstthermalignitionextinguishedencountered thelocalhotsourceagain.Accordingtoexperimentalresults,thecriticalignitiontemperature...
Anexperimentonthegasoline-airmixturesecondarythermalignitionwasoperatedunder theconditionsthattheresidualgasformedafterthefirstthermalignitionextinguishedencountered thelocalhotsourceagain.Accordingtoexperimentalresults,thecriticalignitiontemperature...
2011, 31(5): 516-520.
doi: 10.11883/1001-1455(2011)05-0516-05
Abstract:
Athree-dimensionalcomputationmodelwithactualsizeswasdevelopedbychoosingtherecoilbrakeofacertaingunastheresearchobject. Dynamicmeshesandslidingmeshestechniqueswere usedtonumericallycalculatethethree-dimensionalflowfieldinsidetherecoilbrakeattheactualr...
Athree-dimensionalcomputationmodelwithactualsizeswasdevelopedbychoosingtherecoilbrakeofacertaingunastheresearchobject. Dynamicmeshesandslidingmeshestechniqueswere usedtonumericallycalculatethethree-dimensionalflowfieldinsidetherecoilbrakeattheactualr...
2011, 31(5): 521-527.
doi: 10.11883/1001-1455(2011)05-0521-07
Abstract:
Standing,sitting,walkinghumanlumpedparametermodelsweredevelopedtoexplorethe crewresponseunderunderwaterexplosion.Therelationbetweenthehumanimpactdamageandunderwaterexplosionshockstrengthwasanalyzed. Andthedamageundergonebythecrewwasevaluatedbasedonth...
Standing,sitting,walkinghumanlumpedparametermodelsweredevelopedtoexplorethe crewresponseunderunderwaterexplosion.Therelationbetweenthehumanimpactdamageandunderwaterexplosionshockstrengthwasanalyzed. Andthedamageundergonebythecrewwasevaluatedbasedonth...
2011, 31(5): 528-562.
doi: 10.11883/1001-1455(2011)05-0528-05
Abstract:
TheexplosionfireballsdescriptiveparametersofathermobaricexplosiveandTNT were measuredbyaninfraredimager.Accordingtotheexperimentdata,adynamicmodeloffireballthermalradiationwasstudied, andthechangeofthefireballssizeandpositionwasquantitativelydescribe...
TheexplosionfireballsdescriptiveparametersofathermobaricexplosiveandTNT were measuredbyaninfraredimager.Accordingtotheexperimentdata,adynamicmodeloffireballthermalradiationwasstudied, andthechangeofthefireballssizeandpositionwasquantitativelydescribe...
2011, 31(5): 533-569.
doi: 10.11883/1001-1455(2011)05-0533-07
Abstract:
Along-rodprojectilepenetratinglayeredmetaltargetswasnumericalsimulatedbyusing AutodynprogrambasedonthemeshfreeSPH method.Theresidualvelocityandkineticenergyafter theprojectilepenetratingintothefirsttargetwereanalyzed,andthefragmentswereobtained.The e...
Along-rodprojectilepenetratinglayeredmetaltargetswasnumericalsimulatedbyusing AutodynprogrambasedonthemeshfreeSPH method.Theresidualvelocityandkineticenergyafter theprojectilepenetratingintothefirsttargetwereanalyzed,andthefragmentswereobtained.The e...
2011, 31(5): 540-547.
doi: 10.11883/1001-1455(2011)05-0540-08
Abstract:
Dynamiccompressiveandtensileexperimentswereconductedforthesteel-fiberreinforced reactivepowderconcrete(RPC)byusinga74-mm-diameterSHPBsetup.Thedynamicmechanical parameterswereobtainedforthesteel-fiberreinforcedRPCatthedifferentstrainratesof1~102s-1. T...
Dynamiccompressiveandtensileexperimentswereconductedforthesteel-fiberreinforced reactivepowderconcrete(RPC)byusinga74-mm-diameterSHPBsetup.Thedynamicmechanical parameterswereobtainedforthesteel-fiberreinforcedRPCatthedifferentstrainratesof1~102s-1. T...
2011, 31(5): 548-552.
doi: 10.11883/1001-1455(2011)05-0548-05
Abstract:
Fromthedetonationenergyreleaseform ofexplosiveinrock mass,theblastvibration causedbytwodifferentexplosiveswasanalyzedbycombiningthesitemonitoringresults.Andthe twofactorswereregressivelydiscussed:theattenuationofthepeakparticlevibrationvelocitywithth...
Fromthedetonationenergyreleaseform ofexplosiveinrock mass,theblastvibration causedbytwodifferentexplosiveswasanalyzedbycombiningthesitemonitoringresults.Andthe twofactorswereregressivelydiscussed:theattenuationofthepeakparticlevibrationvelocitywithth...
2011, 31(5): 553-556.
doi: 10.11883/1001-1455(2011)05-0553-04
Abstract:
Anew modelwasproposedbycombiningtheJTFreaction-ratemodelandslowenergy-releasefunctiontonumericallysimulatethedetonationprocessofinsensitivehighexplosive (IHE). Andcomparisonsbetweentheoreticalandexperimentalresultsshowthatthismodelcandescribemore fac...
Anew modelwasproposedbycombiningtheJTFreaction-ratemodelandslowenergy-releasefunctiontonumericallysimulatethedetonationprocessofinsensitivehighexplosive (IHE). Andcomparisonsbetweentheoreticalandexperimentalresultsshowthatthismodelcandescribemore fac...
2011, 31(5): 557-560.
doi: 10.11883/1001-1455(2011)05-0557-04
Abstract:
1Cr13Mo/45steelcladconticasterrollerswerepreparedbyusinganexplosivecaldmethod toexploretheexplosivecladtechnique,andtheultrasonicscantestandmetallographwereusedtoresearchtheeffectoftheexplosivethicknessandstand- offonthecladrollers.Investigatedresult...
1Cr13Mo/45steelcladconticasterrollerswerepreparedbyusinganexplosivecaldmethod toexploretheexplosivecladtechnique,andtheultrasonicscantestandmetallographwereusedtoresearchtheeffectoftheexplosivethicknessandstand- offonthecladrollers.Investigatedresult...
