2010 Vol. 30, No. 2
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2010, 30(2): 113-118.
doi: 10.11883/1001-1455(2010)02-0113-06
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Abstract:
Based on the quantitative phase analysis using the Rietveld method, in-situ X-ray diffraction (XRD) experiments were conducted to explore isothermal phase transition kinetics of HMX. Transition extent-time curves of HMX were described at different is...
Based on the quantitative phase analysis using the Rietveld method, in-situ X-ray diffraction (XRD) experiments were conducted to explore isothermal phase transition kinetics of HMX. Transition extent-time curves of HMX were described at different is...
2010, 30(2): 119-124.
doi: 10.11883/1001-1455(2010)02-0119-06
Abstract:
Shock compression experiments were performed on C30 concrete by using the one-stage light-gas gun. The stress profiles at the different distances were measured by employing in-material manganin stress gauges. Based on the measured stress profiles, th...
Shock compression experiments were performed on C30 concrete by using the one-stage light-gas gun. The stress profiles at the different distances were measured by employing in-material manganin stress gauges. Based on the measured stress profiles, th...
2010, 30(2): 125-130.
doi: 10.11883/1001-1455(2010)02-0125-06
Abstract:
The dynamics of the airplane impacting on water was investigated. The arbitrary Lagrangian-Eulerian (ALE) method was employed to describe this fluid-structure interaction problem. The velocity of the airplane after landing was researched by analyzing...
The dynamics of the airplane impacting on water was investigated. The arbitrary Lagrangian-Eulerian (ALE) method was employed to describe this fluid-structure interaction problem. The velocity of the airplane after landing was researched by analyzing...
2010, 30(2): 131-137.
doi: 10.11883/1001-1455(2010)02-0131-07
Abstract:
Mesoscale responses of heterogeneous explosives under shock loading were investigated by using a three-dimensional discrete element method. Numerical simulations without chemical reaction were conducted to explore the hot spot mechanisms in plastic b...
Mesoscale responses of heterogeneous explosives under shock loading were investigated by using a three-dimensional discrete element method. Numerical simulations without chemical reaction were conducted to explore the hot spot mechanisms in plastic b...
2010, 30(2): 138-144.
doi: 10.11883/1001-1455(2010)02-0138-07
Abstract:
By considering the elastic-plastic deformation behavior of multiple contacts and the conditions of multiple impacts and multiple separations and by using the finite difference method, the MCIS method was presented to investigate the impact problem of...
By considering the elastic-plastic deformation behavior of multiple contacts and the conditions of multiple impacts and multiple separations and by using the finite difference method, the MCIS method was presented to investigate the impact problem of...
2010, 30(2): 145-151.
doi: 10.11883/1001-1455(2010)02-0145-07
Abstract:
Based on the one-dimensional shock wave theory and the powder shock temperature rising model, dynamical shock response, shock temperature rising and shock-induced chemical reaction were theoretically analyzed for reactive metals under high-velocity i...
Based on the one-dimensional shock wave theory and the powder shock temperature rising model, dynamical shock response, shock temperature rising and shock-induced chemical reaction were theoretically analyzed for reactive metals under high-velocity i...
2010, 30(2): 152-158.
doi: 10.11883/1001-1455(2010)02-0152-07
Abstract:
Sympathetic detonation experiments of the GHL explosives in steel shell were carried out. By observing the remainder of the explosive, the deformation of the witness and steel shell, the explosive reaction state was judged and the critical distance o...
Sympathetic detonation experiments of the GHL explosives in steel shell were carried out. By observing the remainder of the explosive, the deformation of the witness and steel shell, the explosive reaction state was judged and the critical distance o...
2010, 30(2): 159-163.
doi: 10.11883/1001-1455(2010)02-0159-05
Abstract:
Projectiles were regarded as rigid ones to simplify the mechanics principle of the perforation for concrete targets. According to the hydrodynamics model, the cracks were considered to increase astatically when they expanded to the back of the target...
Projectiles were regarded as rigid ones to simplify the mechanics principle of the perforation for concrete targets. According to the hydrodynamics model, the cracks were considered to increase astatically when they expanded to the back of the target...
2010, 30(2): 164-168.
doi: 10.11883/1001-1455(2010)02-0164-05
Abstract:
Dust explosion experiments aiming at 4 kinds of coal dust were carried out in a 20-liter spherical vessel to explore the mechanism of dust explosion. The lower explosion limit, the maximum explosion pressure and the maximum explosion pressure rising ...
Dust explosion experiments aiming at 4 kinds of coal dust were carried out in a 20-liter spherical vessel to explore the mechanism of dust explosion. The lower explosion limit, the maximum explosion pressure and the maximum explosion pressure rising ...
2010, 30(2): 169-177.
doi: 10.11883/1001-1455(2010)02-0169-09
Abstract:
Numerical models for single-layer Kiewitt-8 reticulated domes with the span of 60 m and cylinder impactors were established by the ANSYS/LS-DYNA program and a series of numerical simulations were carried out. Four failure modes for the reticulated do...
Numerical models for single-layer Kiewitt-8 reticulated domes with the span of 60 m and cylinder impactors were established by the ANSYS/LS-DYNA program and a series of numerical simulations were carried out. Four failure modes for the reticulated do...
2010, 30(2): 178-182.
doi: 10.11883/1001-1455(2010)02-0178-05
Abstract:
Several common methods to simulate the problem of penetrating reinforced concrete were presented. Lagrange algorithm in AUTODYN was used to calculate the experiment of kinetic energy projectile penetrating reinforced concrete from the reference, the ...
Several common methods to simulate the problem of penetrating reinforced concrete were presented. Lagrange algorithm in AUTODYN was used to calculate the experiment of kinetic energy projectile penetrating reinforced concrete from the reference, the ...
2010, 30(2): 183-190.
doi: 10.11883/1001-1455(2010)02-0183-08
Abstract:
In order to fully realize the blast resistance of this kind of rock cavern, a great many 3D nonlinear finite element numerical simulations were implemented. Taking the damage of surrounding rock and concrete liner as evaluation criterion, the influen...
In order to fully realize the blast resistance of this kind of rock cavern, a great many 3D nonlinear finite element numerical simulations were implemented. Taking the damage of surrounding rock and concrete liner as evaluation criterion, the influen...
2010, 30(2): 191-196.
doi: 10.11883/1001-1455(2010)02-0191-06
Abstract:
To safely recover the waste heat of the converter gas, a series of experiments were conducted to explore the deflagration properties of CO-air mixture at different initial temperatures in a duct lined with obstacles. By measuring deflagration pressur...
To safely recover the waste heat of the converter gas, a series of experiments were conducted to explore the deflagration properties of CO-air mixture at different initial temperatures in a duct lined with obstacles. By measuring deflagration pressur...
2010, 30(2): 197-202.
doi: 10.11883/1001-1455(2010)02-0197-06
Abstract:
Forcreatingacreditablemodelforboltjointdamage,theexplosionshockdamagebehaviors ofbolt-jointedstructureswereanalyzedbytheLS-DYNAcodeandamethodforestablishingsimple boltdamagemodelswasputforward.ThefiniteelementmodelofM24boltjointswasproposedand prestr...
Forcreatingacreditablemodelforboltjointdamage,theexplosionshockdamagebehaviors ofbolt-jointedstructureswereanalyzedbytheLS-DYNAcodeandamethodforestablishingsimple boltdamagemodelswasputforward.ThefiniteelementmodelofM24boltjointswasproposedand prestr...
2010, 30(2): 203-208.
doi: 10.11883/1001-1455(2010)02-0203-06
Abstract:
Atechniquewasdescribedformodelingtheend-faceindentationduringtheSHPBtest.A numericalcorrectionprocedurewasestablishedbasedonthismodel.Bycombiningthistechniquewith othertechniquesinthedataprocessingofSHPBtest,theaccuracyofstraincalculationwasimproved ...
Atechniquewasdescribedformodelingtheend-faceindentationduringtheSHPBtest.A numericalcorrectionprocedurewasestablishedbasedonthismodel.Bycombiningthistechniquewith othertechniquesinthedataprocessingofSHPBtest,theaccuracyofstraincalculationwasimproved ...
2010, 30(2): 209-214.
doi: 10.11883/1001-1455(2010)02-0209-06
Abstract:
Byusingtheray-tracingmethod,anairopticalbreakdownmodelwasproposedforinvestigatingthelaser- materialinteraction.Thelaserbeam wasdividedintoanumberofrays,whichwere trackedtocomputeradiationintensitybytheradiationtransferequation,andtheairopticalbreakdo...
Byusingtheray-tracingmethod,anairopticalbreakdownmodelwasproposedforinvestigatingthelaser- materialinteraction.Thelaserbeam wasdividedintoanumberofrays,whichwere trackedtocomputeradiationintensitybytheradiationtransferequation,andtheairopticalbreakdo...
2010, 30(2): 215-219.
doi: 10.11883/1001-1455(2010)02-0215-05
Abstract:
Ninediscretemulti-layeredcylindersweremanufacturedwiththesamematerialsandthe magnificationfactorof4.Aseriesofexplosionexperimentswereconductedunderinternalexplosive loadingtoinvestigatetheiranti-explosioncapabilityandscaleeffect.Experimentalresultssh...
Ninediscretemulti-layeredcylindersweremanufacturedwiththesamematerialsandthe magnificationfactorof4.Aseriesofexplosionexperimentswereconductedunderinternalexplosive loadingtoinvestigatetheiranti-explosioncapabilityandscaleeffect.Experimentalresultssh...
2010, 30(2): 220-224.
doi: 10.11883/1001-1455(2010)02-0220-05
Abstract:
Abstract:Guidedbombsweretakenastheresearchobjectstonumericallysimulatethepenetration andexplosionprocessoflarge-aperture-heavy weaponsbyusingathree-dimensionalarbitraryLagrange- Eulerian(ALE)codeandtoexploredamageeffectsofarollercompactedconcretegrav...
Abstract:Guidedbombsweretakenastheresearchobjectstonumericallysimulatethepenetration andexplosionprocessoflarge-aperture-heavy weaponsbyusingathree-dimensionalarbitraryLagrange- Eulerian(ALE)codeandtoexploredamageeffectsofarollercompactedconcretegrav...
