2013 Vol. 33, No. 3
Display Method:
2013, 33(3): 225-230.
doi: 10.11883/1001-1455(2013)03-0225-06
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Abstract:
Tungsten structure reinforced composites are materials that the tungsten structure is embedded into the metallic glass to prevent the shear bands from developing in the metallic glass. In order to expand their application and understand their mechani...
Tungsten structure reinforced composites are materials that the tungsten structure is embedded into the metallic glass to prevent the shear bands from developing in the metallic glass. In order to expand their application and understand their mechani...
2013, 33(3): 231-037.
doi: 10.11883/1001-1455(2013)03-0231-07
Abstract:
A computational inverse technique is presented for determining the detonator status in an underground explosion from the given damage effects. In this technique, the detonator status can be determined by minimizing the error functions formulated usin...
A computational inverse technique is presented for determining the detonator status in an underground explosion from the given damage effects. In this technique, the detonator status can be determined by minimizing the error functions formulated usin...
2013, 33(3): 238-242.
doi: 10.11883/1001-1455(2013)03-0238-05
Abstract:
To reveal the sensitivity of strength and fracture toughness to loading rate for ultra-strength steel 18NiC250, the plastic flow stress-strain curves of 18NiC250 were measured in the strain-rate range from 0.001 s-1 to 2 000 s-1 and its fracture toug...
To reveal the sensitivity of strength and fracture toughness to loading rate for ultra-strength steel 18NiC250, the plastic flow stress-strain curves of 18NiC250 were measured in the strain-rate range from 0.001 s-1 to 2 000 s-1 and its fracture toug...
2013, 33(3): 243-248.
doi: 10.11883/1001-1455(2013)03-0243-06
Abstract:
By taking a large airport engineering as an example, the damages to early-age concretes under blasting vibration were experimentally investigated. Pendulum experiments were carried out on the C30 plain concrete cubic specimens at different ages. And ...
By taking a large airport engineering as an example, the damages to early-age concretes under blasting vibration were experimentally investigated. Pendulum experiments were carried out on the C30 plain concrete cubic specimens at different ages. And ...
2013, 33(3): 249-254.
doi: 10.11883/1001-1455(2013)03-0249-06
Abstract:
Abstract:Inviewofthefactsthattheunlockingprocessofanexplosiveboltisinstantaneous,theexplosiveboltcanundergoalargedeformationinthisprocess, andtheimpedancesofthematerialsin theinterfacehavegreatvarianceinthecourseofthecontactexplosion,basedontheSPH me...
Abstract:Inviewofthefactsthattheunlockingprocessofanexplosiveboltisinstantaneous,theexplosiveboltcanundergoalargedeformationinthisprocess, andtheimpedancesofthematerialsin theinterfacehavegreatvarianceinthecourseofthecontactexplosion,basedontheSPH me...
2013, 33(3): 255-263.
doi: 10.11883/1001-1455(2013)03-0255-08
Abstract:
Thedynamicresponsesofstructuresunderblastloadingaremuchmorecomplicatedthan thoseunderotherloadingssuchasstaticandearthquakeloadings.Inordertofullyrealizetheblastresistancesofconcretegravitydams, agreatmanynumericalsimulationswereimplementedbyusing th...
Thedynamicresponsesofstructuresunderblastloadingaremuchmorecomplicatedthan thoseunderotherloadingssuchasstaticandearthquakeloadings.Inordertofullyrealizetheblastresistancesofconcretegravitydams, agreatmanynumericalsimulationswereimplementedbyusing th...
2013, 33(3): 263-269.
doi: 10.11883/1001-1455(2013)03-0263-06
Abstract:
Thedouble-layeredthinA3steelplateswerenormallyimpactedbytheogival-,blunt-and hemispherical-nosedprojectileswiththehelpofagasguntoinvestigatetheinfluencesoflayerorder ontheballisticresistanceandfailuremodeofthetargets.Andtheresidualandinitialvelocitie...
Thedouble-layeredthinA3steelplateswerenormallyimpactedbytheogival-,blunt-and hemispherical-nosedprojectileswiththehelpofagasguntoinvestigatetheinfluencesoflayerorder ontheballisticresistanceandfailuremodeofthetargets.Andtheresidualandinitialvelocitie...
2013, 33(3): 269-275.
doi: 10.11883/1001-1455(2013)03-0269-06
Abstract:
Basedonthesixbasicparametersincludingapparentdensity,mass,plateauload,out-ofplaneelasticmodulus, compressionratioandenergyabsorption,themappingrelationsweredeveloped betweenthethickness-lengthratiosofthehexagonalaluminumhoneycombcellsbeforeandafterma...
Basedonthesixbasicparametersincludingapparentdensity,mass,plateauload,out-ofplaneelasticmodulus, compressionratioandenergyabsorption,themappingrelationsweredeveloped betweenthethickness-lengthratiosofthehexagonalaluminumhoneycombcellsbeforeandafterma...
2013, 33(3): 275-282.
doi: 10.11883/1001-1455(2013)03-0275-07
Abstract:
Dynamicsplittingexperimentsoncementmortarspecimenswereperformedtoexperimentallyinvestigatethecrackinitiationandpropagationunde variousloadingrates.Andamicro-mechanicalmodelwasdevelopedtodeeplyanalyzethisproblem. Theresultsdemonstratethatthemicrocrack...
Dynamicsplittingexperimentsoncementmortarspecimenswereperformedtoexperimentallyinvestigatethecrackinitiationandpropagationunde variousloadingrates.Andamicro-mechanicalmodelwasdevelopedtodeeplyanalyzethisproblem. Theresultsdemonstratethatthemicrocrack...
2013, 33(3): 282-286.
doi: 10.11883/1001-1455(2013)03-0282-05
Abstract:
WemodifytheinaccurateformulasusedinBurgesssresistivitymodel(BRM)andhisalgorithmflow, andcalculatetheelectricalresistivityofthemetalsaluminum,copper,tungsten,stainlesssteel, goldandsilver.ThecalculatedresultsareconsistentwiththeonesbyBurgess.Amagnetoh...
WemodifytheinaccurateformulasusedinBurgesssresistivitymodel(BRM)andhisalgorithmflow, andcalculatetheelectricalresistivityofthemetalsaluminum,copper,tungsten,stainlesssteel, goldandsilver.ThecalculatedresultsareconsistentwiththeonesbyBurgess.Amagnetoh...
2013, 33(3): 287-292.
doi: 10.11883/1001-1455(2013)03-0287-05
Abstract:
Torealizethathunkfraisescanbefastperforatedandtheperforateddepthandwidthareenough, anewtandemshapedchargestructurewasproposedbyusingtwosamestructuresofexplosively- formedprojectile(EFP)shapedcharges.Andtheeffectsofthestructuralparametersonthe tandemE...
Torealizethathunkfraisescanbefastperforatedandtheperforateddepthandwidthareenough, anewtandemshapedchargestructurewasproposedbyusingtwosamestructuresofexplosively- formedprojectile(EFP)shapedcharges.Andtheeffectsofthestructuralparametersonthe tandemE...
2013, 33(3): 292-297.
doi: 10.11883/1001-1455(2013)03-0292-05
Abstract:
Abstract:Byanalyzingtherelationshipsbetweentheshapeparametersofpropellantgrainandthe pressure-timecurveinaclosedbomb,acomputationalmethodwasestablishedforestimatingthe shapecharacteristicparametersoffracturedpropellantingrainformandthedetailedcalcula...
Abstract:Byanalyzingtherelationshipsbetweentheshapeparametersofpropellantgrainandthe pressure-timecurveinaclosedbomb,acomputationalmethodwasestablishedforestimatingthe shapecharacteristicparametersoffracturedpropellantingrainformandthedetailedcalcula...
2013, 33(3): 297-303.
doi: 10.11883/1001-1455(2013)03-0297-06
Abstract:
Basedontheexistentinvestigationsthatthemainfailurepatternofanthraciteunderuniaxial impactloadingisthecombineddamageoftensilestressdamage,extensiblestraindamageandunloadingdamage, butcompression-shearingdamageisinfrequent,acompression-extension-tensio...
Basedontheexistentinvestigationsthatthemainfailurepatternofanthraciteunderuniaxial impactloadingisthecombineddamageoftensilestressdamage,extensiblestraindamageandunloadingdamage, butcompression-shearingdamageisinfrequent,acompression-extension-tensio...
2013, 33(3): 303-311.
doi: 10.11883/1001-1455(2013)03-0303-08
Abstract:
Thedamageinthecarbonfiber-reinforcedaluminumlaminates(CARALs)underlow-velocityimpactwasnumericallyanalyzedbyusingthethree- dimensionaldynamicfiniteelementsoftware, ABAQUS.ParticularattentionwaspaidonthedynamicresponseoftheCARALstolow-velocityimpact. ...
Thedamageinthecarbonfiber-reinforcedaluminumlaminates(CARALs)underlow-velocityimpactwasnumericallyanalyzedbyusingthethree- dimensionaldynamicfiniteelementsoftware, ABAQUS.ParticularattentionwaspaidonthedynamicresponseoftheCARALstolow-velocityimpact. ...
2013, 33(3): 311-315.
doi: 10.11883/1001-1455(2013)03-0311-04
Abstract:
Basedonthecalculationsonthepowderedaluminumpressureandtemperaturerelaxation timesinthedetonationzone,theconventionalCJmodelwasimprovedtoproposeanew multiphase flow modelbyconsideringthemultiphasedetonationproductsaswellasthethermaldisequilibriumin th...
Basedonthecalculationsonthepowderedaluminumpressureandtemperaturerelaxation timesinthedetonationzone,theconventionalCJmodelwasimprovedtoproposeanew multiphase flow modelbyconsideringthemultiphasedetonationproductsaswellasthethermaldisequilibriumin th...
2013, 33(3): 315-321.
doi: 10.11883/1001-1455(2013)03-0315-06
Abstract:
Asimplifiedthree-dimensionalfiniteelementmodelforhumanthoraxeswasestablishedand thepropermaterialmodelsandparameterswereselectedforthedifferentthoraxorgans.Themechanicalinteractionoftheblastwavesandthethoraxwasexploredbytheself- developedlocal-planew...
Asimplifiedthree-dimensionalfiniteelementmodelforhumanthoraxeswasestablishedand thepropermaterialmodelsandparameterswereselectedforthedifferentthoraxorgans.Themechanicalinteractionoftheblastwavesandthethoraxwasexploredbytheself- developedlocal-planew...
2013, 33(3): 321-325.
doi: 10.11883/1001-1455(2013)03-0321-04
Abstract:
Abstract:AninversionswitchforinternalelectronicpressuregaugeswasdesignedbyusingMEMSaccelerometerMMA8453QandMSP430 MCU.Thereby,usingthedirectiondetectionfunctionofthe accelerometer,MCUreadsitsaccelerationthroughtheI2Cinterfaceandjudgeswhetherthetested...
Abstract:AninversionswitchforinternalelectronicpressuregaugeswasdesignedbyusingMEMSaccelerometerMMA8453QandMSP430 MCU.Thereby,usingthedirectiondetectionfunctionofthe accelerometer,MCUreadsitsaccelerationthroughtheI2Cinterfaceandjudgeswhetherthetested...
2013, 33(3): 325-330.
doi: 10.11883/1001-1455(2013)03-0325-05
Abstract:
Aseriesofexperimentswerecarriedouttoexploretheenergyoutputcharacteristicsofthe explosiveinthedifferentunderwaterboundaryconditions:freefield,waterbottom,nearwaterbottomandnearwatersurface. Theexperimentalresultsshowthatwhentheexplosiveisnearthewater ...
Aseriesofexperimentswerecarriedouttoexploretheenergyoutputcharacteristicsofthe explosiveinthedifferentunderwaterboundaryconditions:freefield,waterbottom,nearwaterbottomandnearwatersurface. Theexperimentalresultsshowthatwhentheexplosiveisnearthewater ...
2013, 33(3): 330-336.
doi: 10.11883/1001-1455(2013)03-0330-07
Abstract:
Thepressureattheinnerwalloftheexplosionvesselwasmeasuredbyusingthepressure barmethodtoinvestigatetheinfluencesofthechargeshapeontheblastloadinginthefieldnearthe explosivesource.Theexperimentalresultsdisplaythatthemaximumratioofthepeakandimpulseof the...
Thepressureattheinnerwalloftheexplosionvesselwasmeasuredbyusingthepressure barmethodtoinvestigatetheinfluencesofthechargeshapeontheblastloadinginthefieldnearthe explosivesource.Theexperimentalresultsdisplaythatthemaximumratioofthepeakandimpulseof the...
