2011 Vol. 31, No. 2
Display Method:
2011, 31(2): 113-118.
doi: 10.11883/1001-1455(2011)02-0113-06
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Abstract:
Carbonnitridepowderswith C N bondswerepreparedbytaking1,3,5-trinitro-1,3,5- triazacyclohexane(RDX)asthehigh-temperature,high-pressuresourceaswellasdicyandiamide (C2H4N4)astheprimaryprecursor.Themorphology,compositionandstructureoftheproducts werechar...
Carbonnitridepowderswith C N bondswerepreparedbytaking1,3,5-trinitro-1,3,5- triazacyclohexane(RDX)asthehigh-temperature,high-pressuresourceaswellasdicyandiamide (C2H4N4)astheprimaryprecursor.Themorphology,compositionandstructureoftheproducts werechar...
2011, 31(2): 119-126.
doi: 10.11883/1001-1455(2011)02-0119-08
Abstract:
Asymmetricalmassabrasionisoneofthedominantreasonstocauseaprojectilebending, yawingandbreakwhenitstrikesaconcretetargetnormallyathighvelocity.Thesphericalcavity-expansionmodelisemployedtoconstructthetransverseloadinthecaseofasymmetricalmassabrasion. W...
Asymmetricalmassabrasionisoneofthedominantreasonstocauseaprojectilebending, yawingandbreakwhenitstrikesaconcretetargetnormallyathighvelocity.Thesphericalcavity-expansionmodelisemployedtoconstructthetransverseloadinthecaseofasymmetricalmassabrasion. W...
2011, 31(2): 127-134.
doi: 10.11883/1001-1455(2011)02-0127-08
Abstract:
Numericalsimulationswereconductedonthepenetrationofthelongrodwiththelength-radialratioof5, theidealsegmentedrodandthesegmentedrodwithacarriertubeintosemi-infinite steeltargets,respectively,byusingthesoftwareANSYS/LS-DYNA3D.TheLagrangianmethodand John...
Numericalsimulationswereconductedonthepenetrationofthelongrodwiththelength-radialratioof5, theidealsegmentedrodandthesegmentedrodwithacarriertubeintosemi-infinite steeltargets,respectively,byusingthesoftwareANSYS/LS-DYNA3D.TheLagrangianmethodand John...
2011, 31(2): 135-140.
doi: 10.11883/1001-1455(2011)02-0135-06
Abstract:
Inashocktube,theair/SF6interfacewasacceleratedbytheincidentshockwavewiththe low Machnumberof1.27.Theinitialsinusoidalinterfacewasobtainedbyapplyingthepolymeric membranewiththethicknessof1~2mandtheinterfaceevolutionwasmonitoredbyusingthetimeresolvedsh...
Inashocktube,theair/SF6interfacewasacceleratedbytheincidentshockwavewiththe low Machnumberof1.27.Theinitialsinusoidalinterfacewasobtainedbyapplyingthepolymeric membranewiththethicknessof1~2mandtheinterfaceevolutionwasmonitoredbyusingthetimeresolvedsh...
2011, 31(2): 141-147.
doi: 10.11883/1001-1455(2011)02-0141-07
Abstract:
BasedontheAlekseevski-Tatemodel,thepresentpaperanalyzestheinterfacedefeatofa longrodinitspenetrationprocess,andthecorrespondingformulaeofvelocitydecayandmasserosion ofthelongrodarepresented.Theeffectsofvelocitydecayandroderosiononthelossofthekinetic ...
BasedontheAlekseevski-Tatemodel,thepresentpaperanalyzestheinterfacedefeatofa longrodinitspenetrationprocess,andthecorrespondingformulaeofvelocitydecayandmasserosion ofthelongrodarepresented.Theeffectsofvelocitydecayandroderosiononthelossofthekinetic ...
2011, 31(2): 148-152.
doi: 10.11883/1001-1455(2011)02-0148-05
Abstract:
Themodifiedgaptestsetupwasdesigned.Theinputpressureofacceptorexplosivewas measuredbyapplyingaPVDFgauge,andthemotionimagesofthefreesurfacewererecordedbyusingahigh- speedframecamera.Therelationbetweenthefree-surfaceparticlevelocityandinputpressureofexp...
Themodifiedgaptestsetupwasdesigned.Theinputpressureofacceptorexplosivewas measuredbyapplyingaPVDFgauge,andthemotionimagesofthefreesurfacewererecordedbyusingahigh- speedframecamera.Therelationbetweenthefree-surfaceparticlevelocityandinputpressureofexp...
2011, 31(2): 153-157.
doi: 10.11883/1001-1455(2011)02-0153-05
Abstract:
Tomastertheeffectofthemagneticfieldsproducedbythegiantmechanicalandelectricalequipmentsincoalminesonmethaneexplosion, experimentalinvestigationswereconductedtoexplore theinfluencesofthemagneticfieldsonexplosionwavepressureandflamepropagationvelocityo...
Tomastertheeffectofthemagneticfieldsproducedbythegiantmechanicalandelectricalequipmentsincoalminesonmethaneexplosion, experimentalinvestigationswereconductedtoexplore theinfluencesofthemagneticfieldsonexplosionwavepressureandflamepropagationvelocityo...
2011, 31(2): 158-164.
doi: 10.11883/1001-1455(2011)02-0158-07
Abstract:
Toexplorethedynamicresponseofasuper-largeoiltankaffectedbygaseousmixtureexplosion, impactexperimentswereconductedonfloating-roofoil-tank modelsimpactedbysteadyblast wave,whichwasinducedbythereactionofacetylene/airmixturespropagatingalongapipe,ininfla...
Toexplorethedynamicresponseofasuper-largeoiltankaffectedbygaseousmixtureexplosion, impactexperimentswereconductedonfloating-roofoil-tank modelsimpactedbysteadyblast wave,whichwasinducedbythereactionofacetylene/airmixturespropagatingalongapipe,ininfla...
2011, 31(2): 165-172.
doi: 10.11883/1001-1455(2011)02-0165-08
Abstract:
Aimedatthestatusofexplosioncompaction,whichwasnotthoroughintheorystudyand reliedmainlyonengineeringexperiencetodetermineblastparametersinconstructions,asoilexplosioncompactionmodelwasdevelopedwhichwasbasedonplasticmechanicsandmechanicsofexplosion. Th...
Aimedatthestatusofexplosioncompaction,whichwasnotthoroughintheorystudyand reliedmainlyonengineeringexperiencetodetermineblastparametersinconstructions,asoilexplosioncompactionmodelwasdevelopedwhichwasbasedonplasticmechanicsandmechanicsofexplosion. Th...
2011, 31(2): 173-178.
doi: 10.11883/1001-1455(2011)02-0173-06
Abstract:
Theunderwaterexplosionprocessofmineslyingonseabedwassimulatedbyusingthe meshfreeSPH method.Andthesubstanceinterfacesweretreatedbyadoptingtheimpedancematching method.Thereflectioncoefficientsofthepeakpressuresindifferentdirectionsatdifferentdistances ...
Theunderwaterexplosionprocessofmineslyingonseabedwassimulatedbyusingthe meshfreeSPH method.Andthesubstanceinterfacesweretreatedbyadoptingtheimpedancematching method.Thereflectioncoefficientsofthepeakpressuresindifferentdirectionsatdifferentdistances ...
2011, 31(2): 179-184.
doi: 10.11883/1001-1455(2011)02-0179-06
Abstract:
Indoorexplosivefracturingsimulationtestswerecarriedoutatatmosphericpressureand20 MPaconfiningpressure,respectively.Theobtainedexplosivefracturingeffectswerecompared.Comparisonsshowthatconfiningpressurehasacertaininfluenceoncrackpropagationpath, crack...
Indoorexplosivefracturingsimulationtestswerecarriedoutatatmosphericpressureand20 MPaconfiningpressure,respectively.Theobtainedexplosivefracturingeffectswerecompared.Comparisonsshowthatconfiningpressurehasacertaininfluenceoncrackpropagationpath, crack...
2011, 31(2): 185-190.
doi: 10.11883/1001-1455(2011)02-0185-06
Abstract:
Tovalidatethefeasibilityofhigh-speedignitionbydetonationandfindouttheignition mechanism,anexperimentalsystemwasdevelopedfortheinvestigationofdetonationignitionwithan in-lineexplosiveinitiator.Thepressurechangesinthetestfacilitiesafterignitionatspecif...
Tovalidatethefeasibilityofhigh-speedignitionbydetonationandfindouttheignition mechanism,anexperimentalsystemwasdevelopedfortheinvestigationofdetonationignitionwithan in-lineexplosiveinitiator.Thepressurechangesinthetestfacilitiesafterignitionatspecif...
2011, 31(2): 191-195.
doi: 10.11883/1001-1455(2011)02-0191-05
Abstract:
Waveletanalysisandindependentcomponentanalysis(ICA)wereintegrallyappliedtoinvestigatetheseparationofthemeasuredshort- delayblastingvibrationsignalsintwodrillingholes. Waveletanalysiswasusedtofilteroutthehigh-frequencysignalwithalowerenergyratiointheb...
Waveletanalysisandindependentcomponentanalysis(ICA)wereintegrallyappliedtoinvestigatetheseparationofthemeasuredshort- delayblastingvibrationsignalsintwodrillingholes. Waveletanalysiswasusedtofilteroutthehigh-frequencysignalwithalowerenergyratiointheb...
2011, 31(2): 196-203.
doi: 10.11883/1001-1455(2011)02-0196-08
Abstract:
Theseismicdataoflow-yieldexplosionearthquakeswhichtookplaceintheQuaternaryperiodsoilwerebasedontocalculatetheparticlevelocitiesofthelongitudinalan transversalwavesand determinetheparametersfortheexistentmodels.Thethreerepresentativemodelsweresyntheti...
Theseismicdataoflow-yieldexplosionearthquakeswhichtookplaceintheQuaternaryperiodsoilwerebasedontocalculatetheparticlevelocitiesofthelongitudinalan transversalwavesand determinetheparametersfortheexistentmodels.Thethreerepresentativemodelsweresyntheti...
2011, 31(2): 204-209.
doi: 10.11883/1001-1455(2011)02-0204-06
Abstract:
Aimedatformingmultimodepenetratorswiththesameshapedcharge,theLS-DYNAsoftwarewasusedtoexploretheeffectsofthepointinitiationpositionontheformationofanexplosively formedpenetrator(EFP).Whentheaxisdistancebetweenthelinerandtheinitiationpointincreased fro...
Aimedatformingmultimodepenetratorswiththesameshapedcharge,theLS-DYNAsoftwarewasusedtoexploretheeffectsofthepointinitiationpositionontheformationofanexplosively formedpenetrator(EFP).Whentheaxisdistancebetweenthelinerandtheinitiationpointincreased fro...
2011, 31(2): 210-214.
doi: 10.11883/1001-1455(2011)02-0210-05
Abstract:
Ashock-tubecalibrationplatformwasestablishedtosolvetheinsufficientdynamicresponse ofapressurebartestsystemintheshockwavemeasurementforchemicalexplosiveexperiments.The dynamiccharacteristicsofthepressurebartestsystem wasinvestigatedbyadoptingthefollow...
Ashock-tubecalibrationplatformwasestablishedtosolvetheinsufficientdynamicresponse ofapressurebartestsystemintheshockwavemeasurementforchemicalexplosiveexperiments.The dynamiccharacteristicsofthepressurebartestsystem wasinvestigatedbyadoptingthefollow...
2011, 31(2): 215-219.
doi: 10.11883/1001-1455(2011)02-0215-05
Abstract:
Toexplorethedynamicmechanicalcharacteristicsofice,uniaxialcompressiontestswere carriedoutinthestrainraterangefrom500to2000s-1 byusingthesplitHopkinsonpressurebar (SHPB)techniqueat-25and-10 ℃,respectively.Moldsweredesignedtomanufactureicesamples, anda...
Toexplorethedynamicmechanicalcharacteristicsofice,uniaxialcompressiontestswere carriedoutinthestrainraterangefrom500to2000s-1 byusingthesplitHopkinsonpressurebar (SHPB)techniqueat-25and-10 ℃,respectively.Moldsweredesignedtomanufactureicesamples, anda...
2011, 31(2): 220-224.
doi: 10.11883/1001-1455(2011)02-0220-05
Abstract:
Two-dimensionalnumericalsimulationofdetonationwaveinterferenceamongperforating bulletswasmadebyemployingtheexplicitdynamicfiniteelementprogram.Effectsoftheprojectile bodyondetonationwaveinterferenceamongperforatingbulletswereconsidered.Andtheresultso...
Two-dimensionalnumericalsimulationofdetonationwaveinterferenceamongperforating bulletswasmadebyemployingtheexplicitdynamicfiniteelementprogram.Effectsoftheprojectile bodyondetonationwaveinterferenceamongperforatingbulletswereconsidered.Andtheresultso...
