2006 Vol. 26, No. 6
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2006, 26(6): 481-485.
doi: 10.11883/1001-1455(2006)06-0481-05
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Abstract:
The dynamic tension experimental technique of electromagnetically driven thin metal rings expansion was described, and quick-discharge switch and cut-off switch were improved to achieve rings free expansion. The approach is useful for studies on mate...
The dynamic tension experimental technique of electromagnetically driven thin metal rings expansion was described, and quick-discharge switch and cut-off switch were improved to achieve rings free expansion. The approach is useful for studies on mate...
2006, 26(6): 486-491.
doi: 10.11883/1001-1455(2006)06-0486-06
Abstract:
Reverse-impact method used to measure the high-pressure sound velocity in shock-compressed metals was described. Two reverse-impact set-ups, Ta/LY12 Al buffer/LiF window and Ta/LiF window, were used to measure the sound velocity in shock-compressed T...
Reverse-impact method used to measure the high-pressure sound velocity in shock-compressed metals was described. Two reverse-impact set-ups, Ta/LY12 Al buffer/LiF window and Ta/LiF window, were used to measure the sound velocity in shock-compressed T...
2006, 26(6): 492-497.
doi: 10.11883/1001-1455(2006)06-0492-06
Abstract:
By using the nonlinear ZWT model and the genetic algorithm method and taking the rate-dependent effects and damage evolution into account, experiments in the quasi-static and impact loading were performed to study the visco-elastic mechanical behavio...
By using the nonlinear ZWT model and the genetic algorithm method and taking the rate-dependent effects and damage evolution into account, experiments in the quasi-static and impact loading were performed to study the visco-elastic mechanical behavio...
2006, 26(6): 498-504.
doi: 10.11883/1001-1455(2006)06-0498-07
Abstract:
A new method was developed to analyze the Taylor impact problem of the rigid target vertically impacted by a cylinder projectile. The quadric nonlinear velocity variation was proposed in this method for the part of a projectile that has not any defor...
A new method was developed to analyze the Taylor impact problem of the rigid target vertically impacted by a cylinder projectile. The quadric nonlinear velocity variation was proposed in this method for the part of a projectile that has not any defor...
2006, 26(6): 505-509.
doi: 10.11883/1001-1455(2006)06-0505-05
Abstract:
The-depth-of-penetration (DOP) experiment of explosively-formed projectile (EFP) penetrating Al2O3 armor ceramic was performed, and the mass protection and difference protection coefficients and the variety of them along with the ceramic thickness we...
The-depth-of-penetration (DOP) experiment of explosively-formed projectile (EFP) penetrating Al2O3 armor ceramic was performed, and the mass protection and difference protection coefficients and the variety of them along with the ceramic thickness we...
2006, 26(6): 510-515.
doi: 10.11883/1001-1455(2006)06-0510-06
Abstract:
By means of optical fibre probe, optical-electrical converter, and oscillograph diagnostic technique, the run distance to detonation was measured as a function of initial shock pressure in a TATB/HMX-based explosive. High amplitude and short duration...
By means of optical fibre probe, optical-electrical converter, and oscillograph diagnostic technique, the run distance to detonation was measured as a function of initial shock pressure in a TATB/HMX-based explosive. High amplitude and short duration...
2006, 26(6): 516-521.
doi: 10.11883/1001-1455(2006)06-0516-06
Abstract:
The experiment and data reduction techniques were improved in the self-consistent method (so called AC method). One-stepped sample and single-flyer instead of the usual two-stepped sample and two-layer combined flyer were used in loading-unloading ex...
The experiment and data reduction techniques were improved in the self-consistent method (so called AC method). One-stepped sample and single-flyer instead of the usual two-stepped sample and two-layer combined flyer were used in loading-unloading ex...
2006, 26(6): 522-527.
doi: 10.11883/1001-1455(2006)06-0522-06
Abstract:
By solving two-dimensional axisymmetric Navier-Stokes equations in conjunction with the chemistry, a numerical simulation of pulse detonation process induced by flame in the tube with CH4-O2-N2 mixture and the flow field outside was performed, and a ...
By solving two-dimensional axisymmetric Navier-Stokes equations in conjunction with the chemistry, a numerical simulation of pulse detonation process induced by flame in the tube with CH4-O2-N2 mixture and the flow field outside was performed, and a ...
2006, 26(6): 528-531.
doi: 10.11883/1001-1455(2006)06-0528-04
Abstract:
The thermal decomposition process of 1,1-diamino-2,2-dinitroethylene (FOX-7) was investigated by differential scaning calorimety(DSC), thermogravimety(TG) and T-Jump rapid scan-FTIR coupling techniques. Results show that the isomerization of the -NO2...
The thermal decomposition process of 1,1-diamino-2,2-dinitroethylene (FOX-7) was investigated by differential scaning calorimety(DSC), thermogravimety(TG) and T-Jump rapid scan-FTIR coupling techniques. Results show that the isomerization of the -NO2...
2006, 26(6): 532-536.
doi: 10.11883/1001-1445(2006)06-0532-05
Abstract:
The planar spall experiments for OFHC were performed on the gas gun facility. 6 mm thickness OFHC sample with PMMA buffer was mounted in a stationary target holder and impacted by 3 mm thickness OFHC flyer carried within the head of the projectile bo...
2006, 26(6): 537-542.
doi: 10.11883/1001-1455(2006)06-0537-06
Abstract:
A polymeric buffer bar is employed to replace the conventional metallic transmission bar in a split Hopkinson pressure bar to determine the spalling strength of a long concrete rod that is placed between the metallic incident bar and the polymer buff...
A polymeric buffer bar is employed to replace the conventional metallic transmission bar in a split Hopkinson pressure bar to determine the spalling strength of a long concrete rod that is placed between the metallic incident bar and the polymer buff...
2006, 26(6): 543-549.
doi: 10.11883/1001-1455(2006)06-0543-07
Abstract:
Detonation characteristics of several fuel vapor (propylene epoxide, IPN,C5~C6, hexane, heptane, decane)-air mixtures were studied. Critical initiation energy was measured by the up-and-down method and cell size on soot foil. Results demonstrate that...
Detonation characteristics of several fuel vapor (propylene epoxide, IPN,C5~C6, hexane, heptane, decane)-air mixtures were studied. Critical initiation energy was measured by the up-and-down method and cell size on soot foil. Results demonstrate that...
2006, 26(6): 550-555.
doi: 10.11883/1001-1455(2006)06-0550-06
Abstract:
By using a Roe scheme of 2nd-order space accuracy and a MUSCLE approach, the propagation of laser-induced shock wave and the thrust generating process of axisymmetric laser thruster were simulated numerically under the air model of perfect gas and hi...
By using a Roe scheme of 2nd-order space accuracy and a MUSCLE approach, the propagation of laser-induced shock wave and the thrust generating process of axisymmetric laser thruster were simulated numerically under the air model of perfect gas and hi...
2006, 26(6): 556-561.
doi: 10.11883/1001-1455(2006)06-0556-06
Abstract:
Numerical investigations were carried out to study the phenomena of detonation sweeping a contact surface of inert gas and its decoupling. The control-equations were solved with upwind TVD algorithm and elemental chemical reaction model, with the poi...
Numerical investigations were carried out to study the phenomena of detonation sweeping a contact surface of inert gas and its decoupling. The control-equations were solved with upwind TVD algorithm and elemental chemical reaction model, with the poi...
2006, 26(6): 562-567.
doi: 10.11883/1001-1455(2006)06-0562-06
Abstract:
The anti-blasting and absorbing energy mechanisms of composite protective structure under blasting loads were numerically simulated by applying ANSYS/LS-DYNA. The energy distribution regulation shows that the foam concrete has greater effects of the ...
The anti-blasting and absorbing energy mechanisms of composite protective structure under blasting loads were numerically simulated by applying ANSYS/LS-DYNA. The energy distribution regulation shows that the foam concrete has greater effects of the ...
2006, 26(6): 568-571.
doi: 10.11883/1001-1455(2006)06-0568-04
Abstract:
With an equipment using Hopkinson pressure bar technique, and using a quartz gage pressure sensors，the high shock acceleration sensors were calibrated, and the calculating formula of the accelerometer sensitivity was developed. The experimental resul...
With an equipment using Hopkinson pressure bar technique, and using a quartz gage pressure sensors，the high shock acceleration sensors were calibrated, and the calculating formula of the accelerometer sensitivity was developed. The experimental resul...
2006, 26(6): 572-576.
doi: 10.11883/1001-1455(2006)06-0572-05
Abstract:
TVD format and elementary reaction model are applied to the study of numerical simulation for phenomena of chemical non-equilibrium oblique detonation wave standing on a projectile. A parallel arithmetic based on MPI parallel environment on PC-Cluste...
TVD format and elementary reaction model are applied to the study of numerical simulation for phenomena of chemical non-equilibrium oblique detonation wave standing on a projectile. A parallel arithmetic based on MPI parallel environment on PC-Cluste...
