2012 Vol. 32, No. 2
Display Method:
2012, 32(2): 113-120.
doi: 10.11883/1001-1455(2012)02-0113-08
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Abstract:
ThedetonationcellsizefortheC2H4-O2 mixturewaspredictedbychemicalkineticsand Ngsmodel.AndtogetherwithLeessurfaceenergymodel,thecriticalenergywasestimatedforthe directinitiationofsphericaldetonationintheC2H4-O2 mixtureunderdifferentinitialpressuresanda...
ThedetonationcellsizefortheC2H4-O2 mixturewaspredictedbychemicalkineticsand Ngsmodel.AndtogetherwithLeessurfaceenergymodel,thecriticalenergywasestimatedforthe directinitiationofsphericaldetonationintheC2H4-O2 mixtureunderdifferentinitialpressuresanda...
2012, 32(2): 121-128.
doi: 10.11883/1001-1455(2012)02-0121-08
Abstract:
Thisreviewaimsatthemainprogressesofthemodelsdescribingshock-inducedignitionand detonationofsolidheterogeneousexplosivessince1980s.These modelscanbedividedintothree types:empiricalmodels,micromechanicalmodelsandmoleculardynamicsbasedmodels.Thecorrespo...
Thisreviewaimsatthemainprogressesofthemodelsdescribingshock-inducedignitionand detonationofsolidheterogeneousexplosivessince1980s.These modelscanbedividedintothree types:empiricalmodels,micromechanicalmodelsandmoleculardynamicsbasedmodels.Thecorrespo...
2012, 32(2): 129-135.
doi: 10.11883/1001-1455(2012)02-0129-07
Abstract:
AthermaltransfermodelforAl2O3ceramicsduringmicro-detonationofstrikingarcmachining( MDSAM)wasestablished.Basedonthefiniteelementtheory,thetemperaturefieldofAl2O3 ceramicsduringMDSAM wassimulatedwiththeaidoftheANSYSsoftware.Combinedwiththematerialprope...
AthermaltransfermodelforAl2O3ceramicsduringmicro-detonationofstrikingarcmachining( MDSAM)wasestablished.Basedonthefiniteelementtheory,thetemperaturefieldofAl2O3 ceramicsduringMDSAM wassimulatedwiththeaidoftheANSYSsoftware.Combinedwiththematerialprope...
2012, 32(2): 136-142.
doi: 10.11883/1001-1455(2012)02-0136-07
Abstract:
Destructiontestswereperformedonacylindricalexplosioncontainmentvessel(ECV)by applyingtheexplosiveloadswiththeincreasingchargemassesofTNT.Anadiabaticshearfailure modeforECVswaspresentedbasedonthefractureandthemicro-opticalobservationofthedestructedves...
Destructiontestswereperformedonacylindricalexplosioncontainmentvessel(ECV)by applyingtheexplosiveloadswiththeincreasingchargemassesofTNT.Anadiabaticshearfailure modeforECVswaspresentedbasedonthefractureandthemicro-opticalobservationofthedestructedves...
2012, 32(2): 143-149.
doi: 10.11883/1001-1455(2012)02-0143-07
Abstract:
Basedonthethermodynamicsandthethree-termequationofstate,theshocktemperature ofporousmetalwastheoreticallyanalyzedfortheHugoniotadiabat,stateparametersandisovolumic extrapolationofsolidmaterials.Bycombiningthecalculatedcoldenergy,thecalculatedcoldpres...
Basedonthethermodynamicsandthethree-termequationofstate,theshocktemperature ofporousmetalwastheoreticallyanalyzedfortheHugoniotadiabat,stateparametersandisovolumic extrapolationofsolidmaterials.Bycombiningthecalculatedcoldenergy,thecalculatedcoldpres...
2012, 32(2): 150-156.
doi: 10.11883/1001-1455(2012)02-0150-07
Abstract:
Tosimulatethemovingofaxisymmetricdetonationfrontontrianglesandquadrilateralsusingthelevelsetmethod, assumingthatthedetonationnormalvelocityisthelinearfunctionofcurvature, anaxisymmtriclevelsetequationisgainedbytheuseofcoordinatetransformation.Theconv...
Tosimulatethemovingofaxisymmetricdetonationfrontontrianglesandquadrilateralsusingthelevelsetmethod, assumingthatthedetonationnormalvelocityisthelinearfunctionofcurvature, anaxisymmtriclevelsetequationisgainedbytheuseofcoordinatetransformation.Theconv...
2012, 32(2): 157-163.
doi: 10.11883/1001-1455(2012)02-0157-07
Abstract:
Toovercomethedifficultiesinsimulatingaccuratelytheblastingvibrationofsurrounding rock,anequivalentsimulationmethodwaspresented.Theequivalentelasticboundarysubjectedto theblastingloadwasdevelopedformultipleboreholesaccordingtothespatialcharacterofrock...
Toovercomethedifficultiesinsimulatingaccuratelytheblastingvibrationofsurrounding rock,anequivalentsimulationmethodwaspresented.Theequivalentelasticboundarysubjectedto theblastingloadwasdevelopedformultipleboreholesaccordingtothespatialcharacterofrock...
2012, 32(2): 164-168.
doi: 10.11883/1001-1455(2012)02-0164-05
Abstract:
Toexploretheinfluenceoftheafter-burningonthestrengthoftheshockwavesproducedby thethermobaricexplosiveexplosioninair,experimentsandnumericalsimulationswereperformedto investigatetheenergyoutputstructure.Theresultsshowthattherelietwopeaksonthepressuret...
Toexploretheinfluenceoftheafter-burningonthestrengthoftheshockwavesproducedby thethermobaricexplosiveexplosioninair,experimentsandnumericalsimulationswereperformedto investigatetheenergyoutputstructure.Theresultsshowthattherelietwopeaksonthepressuret...
2012, 32(2): 169-173.
doi: 10.11883/1001-1455(2012)02-0169-05
Abstract:
Three-pointdynamicbendingtestsandquasi-statictestswerecarriedout,respectively.And theexperimentalmethodsandthecorrespondingexperimentalprinciplewereintroducedindetails.In theexperiments,aluminumalloy6063T6waschosenasthethin-walledtubematerial,thetube...
Three-pointdynamicbendingtestsandquasi-statictestswerecarriedout,respectively.And theexperimentalmethodsandthecorrespondingexperimentalprinciplewereintroducedindetails.In theexperiments,aluminumalloy6063T6waschosenasthethin-walledtubematerial,thetube...
2012, 32(2): 174-178.
doi: 10.11883/1001-1455(2012)02-0174-05
Abstract:
Cu3(C6H5O3)2 wasmixedwitholeicacidandRDXaccordingtoacertainproportiontopreparethereactant. Theobtainedmixedexplosiveswereignitedbythedetonatorsundernitrogenprotectioninanexplosionvesseltosynthesizecarbon- encapsulatedcoppernanoparticles.Thedetonation...
Cu3(C6H5O3)2 wasmixedwitholeicacidandRDXaccordingtoacertainproportiontopreparethereactant. Theobtainedmixedexplosiveswereignitedbythedetonatorsundernitrogenprotectioninanexplosionvesseltosynthesizecarbon- encapsulatedcoppernanoparticles.Thedetonation...
2012, 32(2): 179-184.
doi: 10.11883/1001-1455(2012)02-0179-06
Abstract:
TomeasurethedispersionofthesignalopticalfibersinVISAR,asetupwasbuiltbasedon thetimedomainmethod.Thesetupismadeupofapicosecondlaser,afast-responsephotodetector andabroadbanddigitaloscilloscope,whichcanaffordthe3dBdurationoftheimpulseresponsefunctionby...
TomeasurethedispersionofthesignalopticalfibersinVISAR,asetupwasbuiltbasedon thetimedomainmethod.Thesetupismadeupofapicosecondlaser,afast-responsephotodetector andabroadbanddigitaloscilloscope,whichcanaffordthe3dBdurationoftheimpulseresponsefunctionby...
2012, 32(2): 185-189.
doi: 10.11883/1001-1455(2012)02-0185-05
Abstract:
Basedonthetheoryofrockblasting,theactionmechanismofexplosionstresswaveincoal wasanalyzed.Thedamagefracturecriteriaforcoalsubjectedtoexplosionstresswavewasexplored accordingtothedamagemechanicstheory.And,simulationexperimentswereconductedtoobtainthe a...
Basedonthetheoryofrockblasting,theactionmechanismofexplosionstresswaveincoal wasanalyzed.Thedamagefracturecriteriaforcoalsubjectedtoexplosionstresswavewasexplored accordingtothedamagemechanicstheory.And,simulationexperimentswereconductedtoobtainthe a...
2012, 32(2): 190-195.
doi: 10.11883/1001-1455(2012)02-0190-06
Abstract:
Aseriesofcylindertestswerecarriedouttodeterminethedynamicpropertiesof7A55aluminumalloysubjectedtointernalexplosiveloading. Thefracturemorphologyandmicrostructureof thedisruptivespecimenwereanalyzedusingthescanningelectronmicroscopyandtheopticalmicros...
Aseriesofcylindertestswerecarriedouttodeterminethedynamicpropertiesof7A55aluminumalloysubjectedtointernalexplosiveloading. Thefracturemorphologyandmicrostructureof thedisruptivespecimenwereanalyzedusingthescanningelectronmicroscopyandtheopticalmicros...
2012, 32(2): 196-202.
doi: 10.11883/1001-1455(2012)02-0196-07
Abstract:
Toovercomethedifficultyinusingthedeep-holepre-splittingblastingtechnologyinthesoft coalseamspronetoresultingintheboreholecollapse,anewmethodwasappliedtoincreasingthegas drainagerate,inwhichtherocknearbythecoalseamwasexplodedatthebottomofthelaneway.Th...
Toovercomethedifficultyinusingthedeep-holepre-splittingblastingtechnologyinthesoft coalseamspronetoresultingintheboreholecollapse,anewmethodwasappliedtoincreasingthegas drainagerate,inwhichtherocknearbythecoalseamwasexplodedatthebottomofthelaneway.Th...
2012, 32(2): 203-210.
doi: 10.11883/1001-1455(2012)02-0203-08
Abstract:
Itisasafetyguaranteeforexploration,developmentandutilizationofnaturalgascontaining highcarbondioxidecomponenttograsptheexplosioncharacteristicsofmethaneandcarbondioxide gasmixtures.Meanwhile,itisvaluableguidancefortheindustrialprocessesinvolvingmetha...
Itisasafetyguaranteeforexploration,developmentandutilizationofnaturalgascontaining highcarbondioxidecomponenttograsptheexplosioncharacteristicsofmethaneandcarbondioxide gasmixtures.Meanwhile,itisvaluableguidancefortheindustrialprocessesinvolvingmetha...
2012, 32(2): 211-215.
doi: 10.11883/1001-1455(2012)02-0211-05
Abstract:
Abstract:Heidaigouopen-pitcoalminewaschosenasanexampletoexploretheinfluencesofbench heightoncastblastinginopen-pitcoalmines.Theoreticalanalysesandsitetestswerecarriedout,respectively. Investigatedresultsdisplaythatwiththeincreaseofthebenchheight,them...
Abstract:Heidaigouopen-pitcoalminewaschosenasanexampletoexploretheinfluencesofbench heightoncastblastinginopen-pitcoalmines.Theoreticalanalysesandsitetestswerecarriedout,respectively. Investigatedresultsdisplaythatwiththeincreaseofthebenchheight,them...
2012, 32(2): 216-220.
doi: 10.11883/1001-1455(2012)02-0216-05
Abstract:
Theemulsionexplosiveswerechargedintothecurvedgroovemachinedonanironplate. Thedetonationvelocitiesoftheemulsionexplosivesweremeasuredbyusingtheshortingpinsinthe casesofdifferentchargecross-sectionalareasanddifferentchargecurvatures.Andtheinfluencesof ...
Theemulsionexplosiveswerechargedintothecurvedgroovemachinedonanironplate. Thedetonationvelocitiesoftheemulsionexplosivesweremeasuredbyusingtheshortingpinsinthe casesofdifferentchargecross-sectionalareasanddifferentchargecurvatures.Andtheinfluencesof ...
Experimentalstudyonpremixedflammablegasexplosionventing
inlinkedvesselsunderthesameeffictiveventarea
2012, 32(2): 221-224.
doi: 10.11883/1001-1455(2012)02-0221-04
Abstract:
Explosionventingwascarriedoutinbothlinkedandsinglevesselsunderthesamedimensionlesseffectiveventareaconditionstostudyflamepropa ationandexplosionpressureevolution.It isshownthatthemaximumreducedexplosionpressureandthemaximumpressureriserateinthe linke...
Explosionventingwascarriedoutinbothlinkedandsinglevesselsunderthesamedimensionlesseffectiveventareaconditionstostudyflamepropa ationandexplosionpressureevolution.It isshownthatthemaximumreducedexplosionpressureandthemaximumpressureriserateinthe linke...
