2011 Vol. 31, No. 1
Display Method:
2011, 31(1): 1-5.
doi: 10.11883/1001-1455(2011)01-0001-05
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Abstract:
Experimentshaveshownthatduringtheformationofadiabaticshear,becauseofhighlylocalizeddeformation, theheatgeneratedbyplasticworkcauseslocalizedhightemperatures,andsometimestheprocessmaybeaccompaniedbythephenomenonofdynamicre- crystallization.Basedonthis...
Experimentshaveshownthatduringtheformationofadiabaticshear,becauseofhighlylocalizeddeformation, theheatgeneratedbyplasticworkcauseslocalizedhightemperatures,andsometimestheprocessmaybeaccompaniedbythephenomenonofdynamicre- crystallization.Basedonthis...
2011, 31(1): 6-10.
doi: 10.11883/1001-1455(2011)01-0006-05
Abstract:
Todescribetheinteractionoftheexplosionfieldandthestructure,a2-DEuler-Lagrange couplingmethodwasdevelopedtocoupleaEuleriancodeandaLagrangiancode.TheEulerianfinite differentialcodecalledMMIC(multi-materialsincell)wasusedtosimulatethebehavioroftheexplos...
Todescribetheinteractionoftheexplosionfieldandthestructure,a2-DEuler-Lagrange couplingmethodwasdevelopedtocoupleaEuleriancodeandaLagrangiancode.TheEulerianfinite differentialcodecalledMMIC(multi-materialsincell)wasusedtosimulatethebehavioroftheexplos...
2011, 31(1): 11-18.
doi: 10.11883/1001-1455(2011)01-0011-08
Abstract:
Lowvelocityballisticimpactexperimentswerecarriedoutforcompositearmorsystem, whichwascombinedwithcompositelaminatesatthefrontandhomogeneoussteelplatesattheback. Failuremodesandenergyabsorbingmechanism wereanalysed.Ballistic-resistancewascomparedbetwee...
Lowvelocityballisticimpactexperimentswerecarriedoutforcompositearmorsystem, whichwascombinedwithcompositelaminatesatthefrontandhomogeneoussteelplatesattheback. Failuremodesandenergyabsorbingmechanism wereanalysed.Ballistic-resistancewascomparedbetwee...
2011, 31(1): 19-24.
doi: 10.11883/1001-1455(2011)01-0019-06
Abstract:
Thepresentstudyisaimedattheproblemofbulkcavitationfromunderwaterexplosion. Basedonthetheoryofacousticapproximationandconsideredthatthereflectedrarefactivewavecan notspreadthroughbulkcatvitation,theonsetandterminationdepthofbulkcavitaion,thewaterparti...
Thepresentstudyisaimedattheproblemofbulkcavitationfromunderwaterexplosion. Basedonthetheoryofacousticapproximationandconsideredthatthereflectedrarefactivewavecan notspreadthroughbulkcatvitation,theonsetandterminationdepthofbulkcavitaion,thewaterparti...
2011, 31(1): 25-30.
doi: 10.11883/1001-1455(2011)01-0025-06
Abstract:
Withtheignitionandgrowth model,thematerialpointmethod (MPM)computercode calledMPM-SDT wasdevelopedinFORTRAN90,and wasusedtocomputeshock-to-detonation transitionproblems.TheresultsobtainedbyMPM,traditionalalgorithmsandexperimentwerecompared. Thefeasib...
Withtheignitionandgrowth model,thematerialpointmethod (MPM)computercode calledMPM-SDT wasdevelopedinFORTRAN90,and wasusedtocomputeshock-to-detonation transitionproblems.TheresultsobtainedbyMPM,traditionalalgorithmsandexperimentwerecompared. Thefeasib...
2011, 31(1): 31-35.
doi: 10.11883/1001-1455(2011)01-0031-05
Abstract:
Apolyvinylidenefluoride(PVDF)pressuresensorwasdesignedandtwoequivalentmeasurementcircuitswereintroduced. ThedynamicsensitivityofthePVDFpressuresensorwascalibrated byusingasplitHopkinsonpressurebarsystem.Resultsshowsthatthedynamicsensitivitycoefficien...
Apolyvinylidenefluoride(PVDF)pressuresensorwasdesignedandtwoequivalentmeasurementcircuitswereintroduced. ThedynamicsensitivityofthePVDFpressuresensorwascalibrated byusingasplitHopkinsonpressurebarsystem.Resultsshowsthatthedynamicsensitivitycoefficien...
2011, 31(1): 36-42.
doi: 10.11883/1001-1455(2011)01-0036-07
Abstract:
Alaserdisplacementgauge(LDG)systemisproposed.Boththestaticanddynamiccalibrationsarecarriedout, andtheresultsshowthatthesystemiseffectivefordynamictest.Asanefficientmeasuringmethod, theLDGcanbeappliedintheHopkinsonbarexperiment,suchas:(1)the LDGcanbeu...
Alaserdisplacementgauge(LDG)systemisproposed.Boththestaticanddynamiccalibrationsarecarriedout, andtheresultsshowthatthesystemiseffectivefordynamictest.Asanefficientmeasuringmethod, theLDGcanbeappliedintheHopkinsonbarexperiment,suchas:(1)the LDGcanbeu...
2011, 31(1): 43-48.
doi: 10.11883/1001-1455(2011)01-0043-06
Abstract:
Bytakingintoaccountthewholeplasticdeformationandelasticdeformationrecoveryoftargetsduringthepenetrationoftherigid, sharp-noseprojectiles,theANSYS/LS-DYNAcodewasused tocalculatethereboundvelocitiesoftheprojectilesandtargetsinthecasesthattheprojectiles...
Bytakingintoaccountthewholeplasticdeformationandelasticdeformationrecoveryoftargetsduringthepenetrationoftherigid, sharp-noseprojectiles,theANSYS/LS-DYNAcodewasused tocalculatethereboundvelocitiesoftheprojectilesandtargetsinthecasesthattheprojectiles...
2011, 31(1): 49-54.
doi: 10.11883/1001-1455(2011)01-0049-06
Abstract:
ByadoptingtheirrotationalandsteadymotionoftheidealcompressiblefluidandthesupercavitywiththeRiabushinskyschemeofclosure, anintegro-differentialequationwasderivedforthe supercavitatingflowaroundaslendercone-shapedprojectiletravelinginwateratsupersonics...
ByadoptingtheirrotationalandsteadymotionoftheidealcompressiblefluidandthesupercavitywiththeRiabushinskyschemeofclosure, anintegro-differentialequationwasderivedforthe supercavitatingflowaroundaslendercone-shapedprojectiletravelinginwateratsupersonics...
2011, 31(1): 55-61.
doi: 10.11883/1001-1455(2011)01-0055-07
Abstract:
Asetofprogramsforsolvingelastic-plasticseismicresponseofmultistorymasonrybuildingswaswrittenbyMatlab, whichcombinedNewmarktime-historymethodwithtwo-linearmodelof stiffnessdegradation.Afour-storymasonrybuildingwastakenastheanalyzedobject,andtheactual ...
Asetofprogramsforsolvingelastic-plasticseismicresponseofmultistorymasonrybuildingswaswrittenbyMatlab, whichcombinedNewmarktime-historymethodwithtwo-linearmodelof stiffnessdegradation.Afour-storymasonrybuildingwastakenastheanalyzedobject,andtheactual ...
2011, 31(1): 62-68.
doi: 10.11883/1001-1455(2011)01-0062-07
Abstract:
Inordertodeterminetheimpactdepthofaconicalprojectileimpactingsinglestiffenedplate vertically,theresidualvelocityoftheprojectileafterpenetratingthestiffenedplatemustbeknown. Theplugisformedaftertheconicalprojectilepenetratingthegrillageandthecrosssect...
Inordertodeterminetheimpactdepthofaconicalprojectileimpactingsinglestiffenedplate vertically,theresidualvelocityoftheprojectileafterpenetratingthestiffenedplatemustbeknown. Theplugisformedaftertheconicalprojectilepenetratingthegrillageandthecrosssect...
2011, 31(1): 69-74.
doi: 10.11883/1001-1455(2011)01-0069-06
Abstract:
Manyinjuriesandfinanciallossareusuallycausedbygasexplosioninlinkedvesselswhen thevesselsandpipescannotbearhighpressureandhighrateofpressurerise.Thehighpressureand rateofpressurerisearemainlyrelatedwiththecharacteristicofgasexplosioninlinkedvessels.In...
Manyinjuriesandfinanciallossareusuallycausedbygasexplosioninlinkedvesselswhen thevesselsandpipescannotbearhighpressureandhighrateofpressurerise.Thehighpressureand rateofpressurerisearemainlyrelatedwiththecharacteristicofgasexplosioninlinkedvessels.In...
2011, 31(1): 75-80.
doi: 10.11883/1001-1455(2011)01-0075-06
Abstract:
Thepropagationofexplosionstresswavesinstripscontaininganobliqueedgecrackwasanalyzed. Andaseriesofcausticexperimentswereconductedtoexplorethecrackextensionunderblast loading.Investigatedresultsshowthatthecrackgrowthvelocity,accelerationanddynamicstres...
Thepropagationofexplosionstresswavesinstripscontaininganobliqueedgecrackwasanalyzed. Andaseriesofcausticexperimentswereconductedtoexplorethecrackextensionunderblast loading.Investigatedresultsshowthatthecrackgrowthvelocity,accelerationanddynamicstres...
2011, 31(1): 81-87.
doi: 10.11883/1001-1455(2011)01-0081-07
Abstract:
Thequasi-staticanddynamicconstitutiverelationaswellasthefracturemodelof7A04aluminumalloy, fromroomtemperatureto250 ℃,wereinvestigatedbyusingauniversaltestingmachine, atorsiontestingmachineandtheTaylorimpacttest.Basedontheexperimentalresults,the strai...
Thequasi-staticanddynamicconstitutiverelationaswellasthefracturemodelof7A04aluminumalloy, fromroomtemperatureto250 ℃,wereinvestigatedbyusingauniversaltestingmachine, atorsiontestingmachineandtheTaylorimpacttest.Basedontheexperimentalresults,the strai...
2011, 31(1): 88-94.
doi: 10.11883/1001-1455(2011)01-0088-07
Abstract:
Underwatersoundeffectsgeneratedbytunnel-explosionwerestudiedandanobservation wasperformedtomonitortheunderwatersoundpressureinPseudosciaenacroceasbreedingpond whenGuiyutunnelblastengineeringoccurredthithercoastalharborinLuoyuanCounty,FujianProvince. ...
Underwatersoundeffectsgeneratedbytunnel-explosionwerestudiedandanobservation wasperformedtomonitortheunderwatersoundpressureinPseudosciaenacroceasbreedingpond whenGuiyutunnelblastengineeringoccurredthithercoastalharborinLuoyuanCounty,FujianProvince. ...
2011, 31(1): 95-100.
doi: 10.11883/1001-1455(2011)01-0095-06
Abstract:
Aimedatathin-walledtubestructurewithspecialringsection,combinedwithfiniteelementanalysis, aradial-directionaldynamictensileexperimentalmethodwasproposedbasedonconventionalsplitHopkinsontensilebar( SHTB).Aspecialclampwasdesigned,andahollowsteeltransim...
Aimedatathin-walledtubestructurewithspecialringsection,combinedwithfiniteelementanalysis, aradial-directionaldynamictensileexperimentalmethodwasproposedbasedonconventionalsplitHopkinsontensilebar( SHTB).Aspecialclampwasdesigned,andahollowsteeltransim...
2011, 31(1): 101-106.
doi: 10.11883/1001-1455(2011)01-0101-06
Abstract:
Anexperimentalsetupwasdevelopedforrapidheatingupconcretebasedontheprincipleof microwaveheatingandconcretespecimenswere manufactured.Dynamiccompressionexperiments wereconductedforthemanufacturedconcretespecimensbyusingasplitHopkinsonpressurebarsystema...
Anexperimentalsetupwasdevelopedforrapidheatingupconcretebasedontheprincipleof microwaveheatingandconcretespecimenswere manufactured.Dynamiccompressionexperiments wereconductedforthemanufacturedconcretespecimensbyusingasplitHopkinsonpressurebarsystema...
2011, 31(1): 107-112.
doi: 10.11883/1001-1455(2011)01-0107-06
Abstract:
Basedonthestress-straincurvesoffoam-concrete,aconstitutive modeltodescribethe processofporecollapseofporousmaterialisproposed.Thebehaviorofuniaxialstrainwavepropagatedinfoam- concretewasnumericallysimulated,andtheattenuationeffectsofthepeakstressandt...
Basedonthestress-straincurvesoffoam-concrete,aconstitutive modeltodescribethe processofporecollapseofporousmaterialisproposed.Thebehaviorofuniaxialstrainwavepropagatedinfoam- concretewasnumericallysimulated,andtheattenuationeffectsofthepeakstressandt...
