2012 Vol. 32, No. 4

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Researchonanti-perforatingmechanismand simulationofcompositelaminate
PENG Gang, WANG Xu-cai, LIU Yuan-dong, FENG Jia-chen
2012, 32(4): 337-345. doi: 10.11883/1001-1455(2012)04-0337-09
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Abstract:
Inordertoinvestigatetheanti-penetrationmechanismandtherelationshipbetweendynamic behaviorandanti-perforationperformanceoffiberreinforcedpolymercomposites(FRP),theexperimentwhichspherefragmentsimulatedprojectilespenetratecompositelaminateswasconducted...
Experimentalresearchonthepenetrationoftungsten-fiber/metallic glass-matrixcompositematerialpenetratorintosteeltarge
CHEN Xiao-wei, LI Ji-cheng, ZHANG Fang-ju, CHEN Gang
2012, 32(4): 346-354. doi: 10.11883/1001-1455(2012)04-0346-09
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Abstract:
Forinvestigatingthe mechanicalbehaviorandself-sharpeningoftungsten-fiber/metallic glass-matrixcompositematerial,quasi-statisticanddynamictestsaswellaspenetrationexperiments ofcompositematerialpenetratorsintosteeltargetsareconducted.Thenthefailuremode...
Damageeffectofcabinstructuresubjectedtobubblejet
CUI Jie, ZHANG A-man, GUO Jun, LI Shi-ming, HUANG Chao
2012, 32(4): 355-361. doi: 10.11883/1001-1455(2012)04-0355-07
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Abstract:
Liquidjetsformedwhenbubblescausedbyunderwaterexplosioncollapsecouldseriously threatenthelocalstrengthofwarships.Inordertostudythedamageeffectofvesselstructuresubjectedtobubblejet, aseriesofunderwaterexplosiontrialswereperformedbyusingatypicalcabinmod...
Analysisonnonlineardynamicbucklingofflexibleelectroniccomponents
ZHANG Xiao-qing, OU Zhi-cheng
2012, 32(4): 362-367. doi: 10.11883/1001-1455(2012)04-0362-06
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Abstract:
Thispaperstudiesthedynamicbucklingproblemoftheflexibleelectroniccomponents,a stifffilmboundtoacompliantsubstrate.ThesubstrateandthefilmaredescribedbythesmalldeformationtheoryandtheKirchhoffplaneplatetheory, respectively.ALagrangefunctionofthefilm iso...
Deformationandfailuremodesofclampedsquareplatesunderclose-rangeairblastloads
CHEN Chang-hai, ZHU Xi, HOU Hai-liang, SHEN Xiao-le, TANG Ting
2012, 32(4): 368-373. doi: 10.11883/1001-1455(2012)04-0368-08
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Abstract:
Toexplorethedeformationmodesofwarshipstructuressubjectedtoclose-rangeexplosionofwarheadandfurnishexperimentaldata,thedeformationanddamagemodesofclampedlargescalesquareplatesunderclose-rangeblastloadingwereanalyzedthroughmodelexperiments.Onthebasisoft...
Theoreticalandexperimentalstudyonrubbercompositearmor anti-shapedchargejetpenetration
ZU Xu-dong, HUANG Zheng-xiang, JIA Xin
2012, 32(4): 376-383. doi: 10.11883/1001-1455(2012)04-0376-08
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Abstract:
Theprocessofrubbercompositearmorantishapedchargejetpenetratedwasdividedfour partsbasedonthejetdeformationwhentheshapedchargejetpenetratedtherubbercompositearmor. Theresultswereacquiredthattheinterferencespeedinterval,interferencefrequencyandsurpluspe...
AnadaptiveaxisymmetricFEM-SPHcouplingalgorithmand itsapplicationtohighvelocityimpactsimulation
XIAO Yi-hua, HU De-an, HAN Xu, YANG Gang
2012, 32(4): 384-392. doi: 10.11883/1001-1455(2012)04-0384-09
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Abstract:
Anadaptiveaxisymmetricfiniteelementmethod(FEM)-smoothedparticlehydrodynamics (SPH)couplingalgorithmisproposedtoaccuratelyandefficientlysimulatehighvelocityimpactproblems. ItusesFEMtocalculateatthebeginning.Duringthedeformationprocess,itautomatically ...
Mechanicalpropertiesoffoamaluminum withdifferentsizes
WANG Peng-fei, HU Shi-sheng
2012, 32(4): 393-398. doi: 10.11883/1001-1455(2012)04-0393-06
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Abstract:
Thedensityuniformityandthecorrespondingsizeeffectwereanalyzedfortwodifferent foamaluminum materials.Analyzedresultsshowthatthemorenon-uniformthedensitydistribution ofthefoamaluminum,themoresignificantthesizeeffect.Butifthedensitydistributionintervali...
Mesodeformationcharacteristicsanalysisofaluminumfoamunderimpact
YANG Bao, TANG Li-qun, LIU Yi-ping, HUANG Xiao-qing
2012, 32(4): 399-403. doi: 10.11883/1001-1455(2012)04-0399-05
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Abstract:
ThemesodeformationofthealuminumfoamspecimensimpactedbySHPBwassynchronouslycapturedbyusingahigh- speedcamera.Andthestraindistributionandfailuremodesofthe specimenswereanalyzed.Theinvestigationshowsthatthestraindistributioninthealuminumfoam specimensis...
Dynamicresponseandexplosionreliefof reticulatedshellunderblastloading
ZHAI Xi-mei, WANG Yong-hui
2012, 32(4): 404-410. doi: 10.11883/1001-1455(2012)04-0404-07
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Abstract:
DynamicfiniteelementsoftwareANSYS/LS-DYNA wasusedtosetupthefinefiniteelementmodelforKiewitt8single- layerreticulatedshellwithaspanof40msubjectedtoblastloading locatedatcentralpoint.Theselectionanddeterminationofmaterialparametersandconstitutivemodels...
Matchingcharacteristicsofwaveandflameinthedeflagration todetonationtransitionprocess
ZHANG Peng-gang, HE Xiao-min
2012, 32(4): 411-417. doi: 10.11883/1001-1455(2012)04-0411-07
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Abstract:
Aseriesofsingle-shotdetonationexperimentswereperformedtounderstandthematching characteristicsofwaveandflameinDDTforH2/airmixuresina60mmsquaretubethatwas2min length.Theion-probesandpressuretransducerswererespectivelyutilizedtogetthesignalofflame andwa...
Numericalsimulationoflunginjuryinducedbyshockwave
ZHOU Jie, TAO Gang, WANG Jian
2012, 32(4): 418-422. doi: 10.11883/1001-1455(2012)04-0418-05
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Abstract:
Basedonnumericalsimulation,thedynamicresponseofhumanchestencounteringshockin freeblastfieldisinvestigated.CTImagesaretreatedusingthesoftwareofMimics,andthe3-Dmodelofhumanchestisestablished. Accordingtothecharacteristicsofeachbiologictissueinhuman che...
Mesomechanicsanalysisofstaticcompressivestrengthanddynamic compressivestrengthofwater-saturatedrockunderuniaxialload
WANG Bin, LI Xi-bing
2012, 32(4): 423-431. doi: 10.11883/1001-1455(2012)04-0423-09
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Abstract:
Dynamicmechanicalpropertiesofwater-saturatedrockunderuniaxialloadarehighlydifferentfromitsstaticmechanicalproperties, thereasonsofwhichcannotbeexplainedwellbasedon macro-mechanics.Accordingtomeso-mechanismofrockcompletestress-straincurveunderuniaxial...
Influenceofignitionenergyondustexplosionbehavior
KUAI Nian-sheng, HUANG Wei-xing, YUAN Jing-jie
2012, 32(4): 432-438. doi: 10.11883/1001-1455(2012)04-0432-07
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Abstract:
Inordertopreventandcontrolindustrialdustexplosionandimprovetheaccuracyofdust explosiontests,anexperimentalresearchwascarriedouttohaveaninsightintotheexplosionbehaviorofhigh- andlow-volatiledustsinducedbydifferentignitionenergiesbyusingaSiwek20Lspheri...
Experimentandnumericalanalysisofthetestofcoppercylinder pressuregaugeundercombinedperforationpressure
CUI Chun-sheng, MA Tie-hua, ZU Jing
2012, 32(4): 439-444. doi: 10.11883/1001-1455(2012)04-0439-06
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Abstract:
Aexperimentsofdownholeperforationandfracturingpressurelivetestbasedoncoppercylinderandcorrespondingp- tcurvesatthesametimewereperformed.A mathematicalmodelforcoppercylindergaugeswasdevelopedandobtainedtheanalyticalsolutionofitsworkingprocesswasobtain...
InfluenceofN2/CO2 mixtureonmethaneexplosion
QIAN Hai-lin, WANG Zhi-rong, JIANG Jun-cheng
2012, 32(4): 445-448. doi: 10.11883/1001-1455(2012)04-0445-04
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Abstract:
Experimentalinvestigationonthelimitoxygenvolumefraction,explosionlimitandexplosionsuppressioneffectofmethanewascarriedoutbyaddingN2/ CO2 mixtureintomethane-airmixture. ResultsshowthatthelimitoxygenvolumefractiondecreaseslinearlywiththeincrementofN2 i...