2013 Vol. 33, No. 6
column
Display Method:
2013, 33(6): 561-566.
doi: 10.11883/1001-1455(2013)06-0561-06
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Abstract:
Basedonthetechniqueofthesphericaldivergentstresswaveexperimentsandthecirque electromagnetictestingmethodoftheparticlevelocity,thepropagationofsphericalstresswaveand theparticlevelocitiesinPMMAundertampedexplosionwereexperimentallyinvestigatedbychoosi...
Basedonthetechniqueofthesphericaldivergentstresswaveexperimentsandthecirque electromagnetictestingmethodoftheparticlevelocity,thepropagationofsphericalstresswaveand theparticlevelocitiesinPMMAundertampedexplosionwereexperimentallyinvestigatedbychoosi...
2013, 33(6): 567-573.
doi: 10.11883/1001-1455(2013)06-0567-07
Abstract:
Akindofdoubleconelinerwasdesigned,itsformationandpenetrationmechanismswere studiedbymeansofnumericalsimulationsandexperiments,thejetparametersofthelinerswithdifferentstructureswereanalyzedtoacquiretheoptimizedresultthroughtheorthogonaldesignmethod, a...
Akindofdoubleconelinerwasdesigned,itsformationandpenetrationmechanismswere studiedbymeansofnumericalsimulationsandexperiments,thejetparametersofthelinerswithdifferentstructureswereanalyzedtoacquiretheoptimizedresultthroughtheorthogonaldesignmethod, a...
2013, 33(6): 574-580.
doi: 10.11883/1001-1455(2013)06-0574-07
Abstract:
Deformation-timecurvesofsheetmetalpenetratedbythepolycarbonate(PC)projectiles withdifferentnoseshapeswereexperimentallyobtainedaswellastheprojectile-targetinteraction timesbyusinganair-jetloadingapparatus.ThefailurecharacteristicsofthePCprojectilesdu...
Deformation-timecurvesofsheetmetalpenetratedbythepolycarbonate(PC)projectiles withdifferentnoseshapeswereexperimentallyobtainedaswellastheprojectile-targetinteraction timesbyusinganair-jetloadingapparatus.ThefailurecharacteristicsofthePCprojectilesdu...
2013, 33(6): 581-586.
doi: 10.11883/1001-1455(2013)06-0581-06
Abstract:
Tostudythedynamicresponseofmaterialsundertensileloadingathighstrainrates,tensile- loadingexperimentswereconductedonoxygen-freecopperexpandingringsbyapplyinganewexpandingringexperimenttechnique. Theradialvelocitiesofthecopperexpandingringsduringtensil...
Tostudythedynamicresponseofmaterialsundertensileloadingathighstrainrates,tensile- loadingexperimentswereconductedonoxygen-freecopperexpandingringsbyapplyinganewexpandingringexperimenttechnique. Theradialvelocitiesofthecopperexpandingringsduringtensil...
2013, 33(6): 587-593.
doi: 10.11883/1001-1455(2013)06-0587-07
Abstract:
Aone-dimensionalshockmodelandathree-dimensionalcell-basedfiniteelementmodelare developedforthedynamiccrushingofametallicfoamrodstrikingarigidwall.Theshockmodelis proposedbyusingthecontinuum-basedstresswavetheoryandassumingarate-independent,rigidnonli...
Aone-dimensionalshockmodelandathree-dimensionalcell-basedfiniteelementmodelare developedforthedynamiccrushingofametallicfoamrodstrikingarigidwall.Theshockmodelis proposedbyusingthecontinuum-basedstresswavetheoryandassumingarate-independent,rigidnonli...
2013, 33(6): 594-600.
doi: 10.11883/1001-1455(2013)06-0594-07
Abstract:
Tounderstandthewholedevelopingprocessoftheflowfieldinasphericalexplosivevessel, thepressureandtemperatureattheinternalsurfaceofthevesselweremonitoredaswellasthestrain ofitsexternalsurface.Theexperimentalresultsshowthattheflowfieldinthevesseltendedtob...
Tounderstandthewholedevelopingprocessoftheflowfieldinasphericalexplosivevessel, thepressureandtemperatureattheinternalsurfaceofthevesselweremonitoredaswellasthestrain ofitsexternalsurface.Theexperimentalresultsshowthattheflowfieldinthevesseltendedtob...
2013, 33(6): 601-607.
doi: 10.11883/1001-1455(2013)06-0601-07
Abstract:
The ultra-high-performancecementitiouscomposites(UHPCC)with thecompressive strengthof120~250MPawerepreparedbyusingtheordinaryconcretemoldingprocessandthehot watercuringtreatment.ThebehaviorsoftheUHPCCwithexcellentstaticmechanicalpropertieswere resear...
The ultra-high-performancecementitiouscomposites(UHPCC)with thecompressive strengthof120~250MPawerepreparedbyusingtheordinaryconcretemoldingprocessandthehot watercuringtreatment.ThebehaviorsoftheUHPCCwithexcellentstaticmechanicalpropertieswere resear...
2013, 33(6): 608-612.
doi: 10.11883/1001-1455(2013)06-0608-05
Abstract:
Toprovidethereliablemechanicalparametersofthefusesduringpenetration,itisnecessarytostudythedecelerationoftheprojectiles. Thepenetrationtestwascarriedoutforareduced-scale advancedearthpenetrationwarhead(EPW)intoconcrete.Thedeceleration-timecurveofthep...
Toprovidethereliablemechanicalparametersofthefusesduringpenetration,itisnecessarytostudythedecelerationoftheprojectiles. Thepenetrationtestwascarriedoutforareduced-scale advancedearthpenetrationwarhead(EPW)intoconcrete.Thedeceleration-timecurveofthep...
2013, 33(6): 613-619.
doi: 10.11883/1001-1455(2013)06-0613-07
Abstract:
Aninnovativetestingtechniquecoupledbystaticanddynamicloadswasintroducedtoinvestigatethetypicaldynamicstress- straincurveoftherockspecimenundercyclicimpactloadingsaswell asthechangesofthereflectedandtransmittedwavespropagatinginit.Theresultsshowthatth...
Aninnovativetestingtechniquecoupledbystaticanddynamicloadswasintroducedtoinvestigatethetypicaldynamicstress- straincurveoftherockspecimenundercyclicimpactloadingsaswell asthechangesofthereflectedandtransmittedwavespropagatinginit.Theresultsshowthatth...
2013, 33(6): 620-624.
doi: 10.11883/1001-1455(2013)06-0620-05
Abstract:
Quasi-isentropiccompressiontechniquesdrivenbydetonationproductswithacavitywere usedtostudymaterialdynamicresponsecharacteristicsinweakshockornoshockconditions.Theentireexperimentsweresimulatedbyatwo- dimensionalprogram.Itwasproposedthatthechargediame...
Quasi-isentropiccompressiontechniquesdrivenbydetonationproductswithacavitywere usedtostudymaterialdynamicresponsecharacteristicsinweakshockornoshockconditions.Theentireexperimentsweresimulatedbyatwo- dimensionalprogram.Itwasproposedthatthechargediame...
2013, 33(6): 625-630.
doi: 10.11883/1001-1455(2013)06-0625-06
Abstract:
Abstract:Dynamiccompressionexperimentswereperformedwithamodifiedsplit-Hopkinsonpressurebartoexploretheeffectsofmoisturecontentonthedynamiccompressionpropertiesofunsaturatedclayundertheconstantstr in-rateloading.Theexperimentalresultsindicatethatwhent...
Abstract:Dynamiccompressionexperimentswereperformedwithamodifiedsplit-Hopkinsonpressurebartoexploretheeffectsofmoisturecontentonthedynamiccompressionpropertiesofunsaturatedclayundertheconstantstr in-rateloading.Theexperimentalresultsindicatethatwhent...
2013, 33(6): 631-637.
doi: 10.11883/1001-1455(2013)06-0631-07
Abstract:
Usingadynamiccausticsblastloadingsystem,thepaperstudiedthedynamicbehaviorof perforatedcrackpropagationbetweentwoholesandlateralcrackpropagationontheconditionofgroovingwithtwoboreholeblastingandsimultane usinitiation.Ascanbeseenfromtheresults,theperfo...
Usingadynamiccausticsblastloadingsystem,thepaperstudiedthedynamicbehaviorof perforatedcrackpropagationbetweentwoholesandlateralcrackpropagationontheconditionofgroovingwithtwoboreholeblastingandsimultane usinitiation.Ascanbeseenfromtheresults,theperfo...
2013, 33(6): 638-646.
doi: 10.11883/1001-1455(2013)06-0638-09
Abstract:
Themorphology,composition,structure,grainsize,surfacearea,porevolumeandpore sizeofthedetonationproductswerecharacterizedbyusingdifferenttechniquesincludingtheX-ray diffraction(XRD),thescanningelectron microscopy(SEM),theX-rayphotoelectronspectroscopy...
Themorphology,composition,structure,grainsize,surfacearea,porevolumeandpore sizeofthedetonationproductswerecharacterizedbyusingdifferenttechniquesincludingtheX-ray diffraction(XRD),thescanningelectron microscopy(SEM),theX-rayphotoelectronspectroscopy...
2013, 33(6): 647-654.
doi: 10.11883/1001-1455(2013)06-0647-08
Abstract:
TheJWLEOSparametersareveryimportantinnumericalsimulationsonexplosives,which canbeaffirmedfromcylinderexperiments.Butinactualcomputations,theseparametersmaydepart fromtheoriginalones.SoaimedtotheJWLEOSparameters,theuncertaintyquantificationwasexplored...
TheJWLEOSparametersareveryimportantinnumericalsimulationsonexplosives,which canbeaffirmedfromcylinderexperiments.Butinactualcomputations,theseparametersmaydepart fromtheoriginalones.SoaimedtotheJWLEOSparameters,theuncertaintyquantificationwasexplored...
2013, 33(6): 655-661.
doi: 10.11883/1001-1455(2013)06-0655-07
Abstract:
Basedontheone-dimensionalstresswavetheory,theelasticstresswavepropagationinthe splitHopkinsonpressurebar(SHPB)experimentwasanalyzedandthecalculationformulaforthe stressdistributioninthespecimenandthepressurebarwasobtained.Andsomefactorsinfluencing th...
Basedontheone-dimensionalstresswavetheory,theelasticstresswavepropagationinthe splitHopkinsonpressurebar(SHPB)experimentwasanalyzedandthecalculationformulaforthe stressdistributioninthespecimenandthepressurebarwasobtained.Andsomefactorsinfluencing th...
2013, 33(6): 662-666.
doi: 10.11883/1001-1455(2013)06-0662-05
Abstract:
Toexplorethedeformationfeaturesoftheplateswithholesunderblastwaves,thinplates oftwomaterialswerepreparedbyadoptingthreekindsofholenumbersandthreekindsofholediameterstogaintherulesofdeflectionatthecentreof heplates.Ageneralizeddeflectionformulawas pro...
Toexplorethedeformationfeaturesoftheplateswithholesunderblastwaves,thinplates oftwomaterialswerepreparedbyadoptingthreekindsofholenumbersandthreekindsofholediameterstogaintherulesofdeflectionatthecentreof heplates.Ageneralizeddeflectionformulawas pro...
2013, 33(6): 667-672.
doi: 10.11883/1001-1455(2013)06-0667-06
Abstract:
WiththehelpofthenonlinearfiniteelementcodeLS-DYNA,adiscretefiniteelementmodelwasdevelopedtonumericallysimulatethedynamicresponseofthereinforcedconcretecontainment underinternalblastloadingbyemployingafluid-structure-couplingalgorithm.Andthesimulatedr...
WiththehelpofthenonlinearfiniteelementcodeLS-DYNA,adiscretefiniteelementmodelwasdevelopedtonumericallysimulatethedynamicresponseofthereinforcedconcretecontainment underinternalblastloadingbyemployingafluid-structure-couplingalgorithm.Andthesimulatedr...
