2010 Vol. 30, No. 5
Display Method:
2010, 30(5): 449-455.
doi: 10.11883/1001-1455(2010)05-0449-07
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Abstract:
Thetensilestress-straincurvesofporcineham musclealongthelongitudinalandtransverse directionsofthemusclefibrewereobtainedoverawiderangeofstrainrates(0.02~2100s-1).The experimentswereperformedbyusingthebiomechanicaltestingsystemandthepolymericsplitHopk...
Thetensilestress-straincurvesofporcineham musclealongthelongitudinalandtransverse directionsofthemusclefibrewereobtainedoverawiderangeofstrainrates(0.02~2100s-1).The experimentswereperformedbyusingthebiomechanicaltestingsystemandthepolymericsplitHopk...
2010, 30(5): 456-462.
doi: 10.11883/1001-1455(2010)05-0456-07
Abstract:
Basedonanactualtunnelexcavationproject,thethree-dimensionalfiniteelementmodelof tunnelexcavationwassetup,andtheparticlevibrationandstressdistributionwereanalyzedatthe existingadjacenttunnelconcretelining.Thecalculationresultshowsthatinthewholerangeof...
Basedonanactualtunnelexcavationproject,thethree-dimensionalfiniteelementmodelof tunnelexcavationwassetup,andtheparticlevibrationandstressdistributionwereanalyzedatthe existingadjacenttunnelconcretelining.Thecalculationresultshowsthatinthewholerangeof...
2010, 30(5): 463-471.
doi: 10.11883/1001-1455(2010)05-0463-09
Abstract:
ParametersoftheJohnson-Holmquistconstitutivemodel(JH-2)weredeterminedforAl2O3 ceramicfromtheexistingliteraturedatabyusingacombinationmethodofexperimentalandnumerical techniques.BasedonthisJH-2modelcontainingdamage,anexplicitfiniteelementanalysiscodeL...
ParametersoftheJohnson-Holmquistconstitutivemodel(JH-2)weredeterminedforAl2O3 ceramicfromtheexistingliteraturedatabyusingacombinationmethodofexperimentalandnumerical techniques.BasedonthisJH-2modelcontainingdamage,anexplicitfiniteelementanalysiscodeL...
2010, 30(5): 472-478.
doi: 10.11883/1001-1455(2010)05-0472-07
Abstract:
Toachievethatadynamitesourceshouldprovidehighseismicenergywithoutdestroyingthe oilwellinthereversedverticalseismicprofile(RVSP)prospectingofpetroleum,theoreticalanalysis wascarriedoutfortheenergytransferofthedynamitesourceandfiniteelementmodelswerede...
Toachievethatadynamitesourceshouldprovidehighseismicenergywithoutdestroyingthe oilwellinthereversedverticalseismicprofile(RVSP)prospectingofpetroleum,theoreticalanalysis wascarriedoutfortheenergytransferofthedynamitesourceandfiniteelementmodelswerede...
2010, 30(5): 479-486.
doi: 10.11883/1001-1455(2010)05-0479-08
Abstract:
Thedouble-sidedstructureofaverylargecrudecarrier(VLCC)cargoholdwaschosenas theresearchobject.Thenonlinearfiniteelementcode,MSC.Dytranwasappliedtoinvestigatenumericallythecollisiondamagemechanismandcrashworthinessofthisstructureunderfullloadand ballas...
Thedouble-sidedstructureofaverylargecrudecarrier(VLCC)cargoholdwaschosenas theresearchobject.Thenonlinearfiniteelementcode,MSC.Dytranwasappliedtoinvestigatenumericallythecollisiondamagemechanismandcrashworthinessofthisstructureunderfullloadand ballas...
2010, 30(5): 487-492.
doi: 10.11883/1001-1455(2010)05-0487-06
Abstract:
Anexperimentaldevicewasdesignedtoinvestigatetheprocesscharactersofliquidexplosion dispersion.Theliquiddispersionprocesswasrecordedbyusingahigh-speedcamera.Theseveralcasesweretakenintoaccount, whichincludeddifferentexplosivequantitiesanddifferentvisco...
Anexperimentaldevicewasdesignedtoinvestigatetheprocesscharactersofliquidexplosion dispersion.Theliquiddispersionprocesswasrecordedbyusingahigh-speedcamera.Theseveralcasesweretakenintoaccount, whichincludeddifferentexplosivequantitiesanddifferentvisco...
2010, 30(5): 493-498.
doi: 10.11883/1001-1455(2010)05-0493-06
Abstract:
BychoosingthePb3O4,ZrO2andTiO2powdersastheraw material,singleperovskitePb (Zr0.95Ti0.05)O3(PZT95/5)powdersweresynthesizedwithacylindricalshockwaveloadingadvice. Thephase,elementaryvalencestates,molecularstructureandcompositionofPZT95/5werecharacteriz...
BychoosingthePb3O4,ZrO2andTiO2powdersastheraw material,singleperovskitePb (Zr0.95Ti0.05)O3(PZT95/5)powdersweresynthesizedwithacylindricalshockwaveloadingadvice. Thephase,elementaryvalencestates,molecularstructureandcompositionofPZT95/5werecharacteriz...
2010, 30(5): 499-504.
doi: 10.11883/1001-1455(2010)05-0499-06
Abstract:
AnimprovedLagrangefiniteelementmethodwasproposedforimpactfractureanaylysis,in whichthenodeseparationtechniquewasusedtoachievemeshseparationandthedistortionerosion methodwasappliedtodealwithseriouslydistortedelements.ByapplyingtheLS-dynasolver,a C++pr...
AnimprovedLagrangefiniteelementmethodwasproposedforimpactfractureanaylysis,in whichthenodeseparationtechniquewasusedtoachievemeshseparationandthedistortionerosion methodwasappliedtodealwithseriouslydistortedelements.ByapplyingtheLS-dynasolver,a C++pr...
2010, 30(5): 505-510.
doi: 10.11883/1001-1455(2010)05-0505-06
Abstract:
Abstract:Themovementofafreelyexpandingringwasanalyzedandtheradialvelocity-timecurveof theexpandingOFHCcopperringwasexperimentallyobtainedbythelaserinterferencetechnique. Thedifferentdatawindowswerechosenfromtheobtainedvelocity-timecurveandtheintercep...
Abstract:Themovementofafreelyexpandingringwasanalyzedandtheradialvelocity-timecurveof theexpandingOFHCcopperringwasexperimentallyobtainedbythelaserinterferencetechnique. Thedifferentdatawindowswerechosenfromtheobtainedvelocity-timecurveandtheintercep...
2010, 30(5): 511-516.
doi: 10.11883/1001-1455(2010)05-0511-06
Abstract:
Byapplyingtheprinciple,threedynamicresponsescalingrequirementswereproposedbetweenmodelsandprototypesforstiffenedplatessubjectedtounderwaterblast. Basedontheabove scalingrequirements,ascalingmethodwasputforwardtopredicatethedynamicresponsesofstiffened...
Byapplyingtheprinciple,threedynamicresponsescalingrequirementswereproposedbetweenmodelsandprototypesforstiffenedplatessubjectedtounderwaterblast. Basedontheabove scalingrequirements,ascalingmethodwasputforwardtopredicatethedynamicresponsesofstiffened...
2010, 30(5): 517-522.
doi: 10.11883/1001-1455(2010)05-0517-06
Abstract:
Basedonbriefanalysisofstatusquoandremovalmechanismofmachiningtechnologiesfor engineeringceramic,amachiningsystemofelectrodearcstrikingmicro-detonation(MDEAS)wasdesignedanddevelopedindependentlybyreferringtothebasictheoryofelectrodedischargeandthe tec...
Basedonbriefanalysisofstatusquoandremovalmechanismofmachiningtechnologiesfor engineeringceramic,amachiningsystemofelectrodearcstrikingmicro-detonation(MDEAS)wasdesignedanddevelopedindependentlybyreferringtothebasictheoryofelectrodedischargeandthe tec...
2010, 30(5): 523-528.
doi: 10.11883/1001-1455(2010)05-0523-06
Abstract:
A modifiedHartmanntubewasusedastheprincipalpartoftheexperimentalsetuptotest theflammablelimitsandcombustionpressureofnaturalgascontainingcarbondioxideatroomtemperatureandatmosphericpressure. Thetriangularflammabilitydiagramandthecombustionpressure di...
A modifiedHartmanntubewasusedastheprincipalpartoftheexperimentalsetuptotest theflammablelimitsandcombustionpressureofnaturalgascontainingcarbondioxideatroomtemperatureandatmosphericpressure. Thetriangularflammabilitydiagramandthecombustionpressure di...
2010, 30(5): 529-534.
doi: 10.11883/1001-1455(2010)05-0529-06
Abstract:
Physicalandmathematicalmodelsweredevelopedtodescribethekicking-upandexplosion processofdepositedcoaldustduetogasexplosion.Basedonthedevelopedmodels,theprocess,in whichthedepositedcoaldustwaskickedupandinvolvedingasexplosion,wasnumericallysimulated by...
Physicalandmathematicalmodelsweredevelopedtodescribethekicking-upandexplosion processofdepositedcoaldustduetogasexplosion.Basedonthedevelopedmodels,theprocess,in whichthedepositedcoaldustwaskickedupandinvolvedingasexplosion,wasnumericallysimulated by...
2010, 30(5): 535-540.
doi: 10.11883/1001-1455(2010)05-0535-06
Abstract:
TwoexplosioneventsrecordedbystationMDJonOctober9,2006andMay25,2009were investigated,respectively.Theenergyratioofthetwoexplosioneventswasestimatedbycomparing themaximumPphaseamplitudesandthepowerspectrumdensities.Relativityofthetwoexplosioneventsinti...
TwoexplosioneventsrecordedbystationMDJonOctober9,2006andMay25,2009were investigated,respectively.Theenergyratioofthetwoexplosioneventswasestimatedbycomparing themaximumPphaseamplitudesandthepowerspectrumdensities.Relativityofthetwoexplosioneventsinti...
2010, 30(5): 541-545.
doi: 10.11883/1001-1455(2010)05-0541-05
Abstract:
Byadoptingthedigitalhigh-speedphotographyanddynamicelectricalmeasurementtechnique, ascale-reducedmodelwasdesignedtoexperimentallyinvestigatethedynamicdamageprocess ofahorseshoe-shapedundergroundprotectivestructureunderimpactloading.Experimentalresult...
Byadoptingthedigitalhigh-speedphotographyanddynamicelectricalmeasurementtechnique, ascale-reducedmodelwasdesignedtoexperimentallyinvestigatethedynamicdamageprocess ofahorseshoe-shapedundergroundprotectivestructureunderimpactloading.Experimentalresult...
2010, 30(5): 546-550.
doi: 10.11883/1001-1455(2010)05-0546-05
Abstract:
Copperparticleimpactbehaviorsincoldsprayingwerenumericallysimulatedbyusingthe LS-DYNAprogram.Someimportantaspectsonthe3Dmodelingwereexamined.Effectsofthemeshingsizeonparticlecriticalvelocityandparticledeformationwerealsoinvestigated. Theresultsshow t...
Copperparticleimpactbehaviorsincoldsprayingwerenumericallysimulatedbyusingthe LS-DYNAprogram.Someimportantaspectsonthe3Dmodelingwereexamined.Effectsofthemeshingsizeonparticlecriticalvelocityandparticledeformationwerealsoinvestigated. Theresultsshow t...
2010, 30(5): 551-555.
doi: 10.11883/1001-1455(2010)05-00551-05
Abstract:
Thewaveletpackettransform,inwhichthewaveletDB8waschosenasthebasisfunction, wasappliedtoanalyzethevibrationsignalsofa25-kg-TNT-equivalentexplosionvessel.Andtheprincipleandcharacteristicsofwaveletpacketanalysiswereintroducedandtheexperimentalvibrationa...
Thewaveletpackettransform,inwhichthewaveletDB8waschosenasthebasisfunction, wasappliedtoanalyzethevibrationsignalsofa25-kg-TNT-equivalentexplosionvessel.Andtheprincipleandcharacteristicsofwaveletpacketanalysiswereintroducedandtheexperimentalvibrationa...
2010, 30(5): 556-560.
doi: 10.11883/1001-1455(2010)05-0556-05
Abstract:
Byusingthecatastrophetheory,anonlineardynamicmodelwasproposedtodescribethe rectangularrockpillarinstabilityinducedbyvicinalblasting.Andsufficientandnecessaryconditions wereworkedoutforthepillardynamicinstability.Theproposedcatastrophemodelswereusedto...
Byusingthecatastrophetheory,anonlineardynamicmodelwasproposedtodescribethe rectangularrockpillarinstabilityinducedbyvicinalblasting.Andsufficientandnecessaryconditions wereworkedoutforthepillardynamicinstability.Theproposedcatastrophemodelswereusedto...
