2005 Vol. 25, No. 4
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2005, 25(4): 289-295.
doi: 10.11883/1001-1455(2005)04-0289-07
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Abstract:
Actions of hoop steel-bar, portrait steel-bar, and steel plate on perforation block in RCBSP are discussed. According to the deformation and failure of RCBSP and distribution of energy in time and space, deformation and failure models of RCBSP are es...
Actions of hoop steel-bar, portrait steel-bar, and steel plate on perforation block in RCBSP are discussed. According to the deformation and failure of RCBSP and distribution of energy in time and space, deformation and failure models of RCBSP are es...
2005, 25(4): 296-302.
doi: 10.11883/1001-1455(2005)04-0296-07
Abstract:
Within the framework of continuum mechanics and immiscible mixture theory, and by assuming that there is no relative motion between the components, an elastic-plastic constitutive model involving damage evolution for fluid-saturated porous solid is p...
Within the framework of continuum mechanics and immiscible mixture theory, and by assuming that there is no relative motion between the components, an elastic-plastic constitutive model involving damage evolution for fluid-saturated porous solid is p...
2005, 25(4): 303-308.
doi: 10.11883/1001-1455(2005)04-0303-06
Abstract:
Experiments were performed to investigate the magnetically accelerating flyers using fast pulsed power. Two flyers with different thicknesses were launched simultaneously, and their velocity histories were recorded by VISAR. When the maximum current ...
Experiments were performed to investigate the magnetically accelerating flyers using fast pulsed power. Two flyers with different thicknesses were launched simultaneously, and their velocity histories were recorded by VISAR. When the maximum current ...
2005, 25(4): 309-312.
doi: 10.11883/1001-1455(2005)04-0309-04
Abstract:
A simplified model of nonideal detonation energy release is proposed to account for the effect of nonideal detonation on underwater explosion. Based on the CJ detonation theory and the later reaction theory, the model divides chemical reactions in al...
A simplified model of nonideal detonation energy release is proposed to account for the effect of nonideal detonation on underwater explosion. Based on the CJ detonation theory and the later reaction theory, the model divides chemical reactions in al...
2005, 25(4): 313-318.
doi: 10.11883/1001-1455(2005)04-0313-06
Abstract:
Formation process and the three fins of the over-turned EFP ignited at three points are numerically simulated with LS-DYNA3D finite element code. Simulated results are in good agreement with experiments, providing the important reference for improvem...
Formation process and the three fins of the over-turned EFP ignited at three points are numerically simulated with LS-DYNA3D finite element code. Simulated results are in good agreement with experiments, providing the important reference for improvem...
2005, 25(4): 319-324.
doi: 10.11883/1001-1455(2005)04-0319-06
Abstract:
By accounting for the effects of temperature and damage on material parameters and the coupled effects of temperature and damage on the plastic deformation, a general explicit form and a specific incremental form of a thermal-plastic constitutive rel...
By accounting for the effects of temperature and damage on material parameters and the coupled effects of temperature and damage on the plastic deformation, a general explicit form and a specific incremental form of a thermal-plastic constitutive rel...
2005, 25(4): 325-329.
doi: 10.11883/1001-1455(2005)04-0325-05
Abstract:
The equilibrium compositions of detonation products of PETN, RDX and HMX explosives are calculated by solving chemical equilibrium equations based on minimizing Gibbs free energy. The results are in good agreement with the results obtained based on B...
The equilibrium compositions of detonation products of PETN, RDX and HMX explosives are calculated by solving chemical equilibrium equations based on minimizing Gibbs free energy. The results are in good agreement with the results obtained based on B...
2005, 25(4): 330-334.
doi: 10.11883/1001-1455(2005)04-0330-05
Abstract:
An experimental system of high-temperature split Hopkinson pressure bar (SHPB) was developed, and the dynamic properties of one type of antihydrogen steel at temperatures from room temperature to 1 000 ℃ and at strain rates from 500 to 1 000 s1 were ...
An experimental system of high-temperature split Hopkinson pressure bar (SHPB) was developed, and the dynamic properties of one type of antihydrogen steel at temperatures from room temperature to 1 000 ℃ and at strain rates from 500 to 1 000 s1 were ...
2005, 25(4): 335-340.
doi: 10.11883/1001-1455(2005)04-0335-06
Abstract:
Explosion seismic waves are numerically studied with a non-stationary random process model. Based on energy conservation and experiential relation, an envelope function of acceleration amplitude and power density of explosion seismic waves is propose...
Explosion seismic waves are numerically studied with a non-stationary random process model. Based on energy conservation and experiential relation, an envelope function of acceleration amplitude and power density of explosion seismic waves is propose...
2005, 25(4): 341-349.
doi: 10.11883/1001-1455(2005)04-0341-09
Abstract:
To create a mathematical model for the hydro-ballistic trajectory of high speed pellet entering water, the hydro-ballistic trajectory and cavity of sphere and pistol pellets entering water at three oblique angles and six velocities have been experime...
To create a mathematical model for the hydro-ballistic trajectory of high speed pellet entering water, the hydro-ballistic trajectory and cavity of sphere and pistol pellets entering water at three oblique angles and six velocities have been experime...
2005, 25(4): 350-354.
doi: 10.11883/1001-1455(2005)04-0350-05
Abstract:
PVDF pressure sensor has been developed to measure shock waves in concrete structures. The work principle and design methodology of the sensor are briefly introduced. Stable capacity of the sensor has been verified through calibration tests, and the ...
PVDF pressure sensor has been developed to measure shock waves in concrete structures. The work principle and design methodology of the sensor are briefly introduced. Stable capacity of the sensor has been verified through calibration tests, and the ...
2005, 25(4): 355-360.
doi: 10.11883/1001-1455(2005)04-0355-06
Abstract:
This paper presents a vaporization model of remnant propellant on the ground and a diffusion model of the poisonous gas for liquid hypergolic propellant launch vehicle explosion. The estimated mass of remnant propellant on the ground, the equivalent ...
This paper presents a vaporization model of remnant propellant on the ground and a diffusion model of the poisonous gas for liquid hypergolic propellant launch vehicle explosion. The estimated mass of remnant propellant on the ground, the equivalent ...
2005, 25(4): 361-367.
doi: 10.11883/1001-1455(2005)04-0361-07
Abstract:
Based on large deformation dynamic equation and finite difference method, the elastic-plastic dynamic responses of a fully clamped shallow arch subjected to projectile impact were studied numerically. Through analyzing the instantaneous distribution ...
Based on large deformation dynamic equation and finite difference method, the elastic-plastic dynamic responses of a fully clamped shallow arch subjected to projectile impact were studied numerically. Through analyzing the instantaneous distribution ...
2005, 25(4): 368-373.
doi: 10.11883/1001-1455(2005)04-0368-06
Abstract:
Advantages and disadvantages of classical and some modified methods for SHPB data processing are discussed. Errors brought by using the classical methods under different experimental conditions are analyzed. Results show that the three-wave method wh...
Advantages and disadvantages of classical and some modified methods for SHPB data processing are discussed. Errors brought by using the classical methods under different experimental conditions are analyzed. Results show that the three-wave method wh...
2005, 25(4): 374-377.
doi: 10.11883/1001-1455(2005)04-0374-04
Abstract:
This paper presents the design idea, work principle, main structure, technical indexes, and applications of a large-caliber mock missile launcher.
This paper presents the design idea, work principle, main structure, technical indexes, and applications of a large-caliber mock missile launcher.
2005, 25(4): 378-381.
doi: 10.11883/1001-1455(2005)04-0378-04
Abstract:
In order to exactly predict the velocity of EFP, its formation process is divided into a loading phase by high explosives and a self-deforming phase. It is assumed that the process ends at the time when the whole liner has melted, and the deformation...
In order to exactly predict the velocity of EFP, its formation process is divided into a loading phase by high explosives and a self-deforming phase. It is assumed that the process ends at the time when the whole liner has melted, and the deformation...
2005, 25(4): 382-384.
doi: 10.11883/1001-1455(2005)04-0382-03
Abstract:
Free surface velocity histories of a film flyer driven by electrical gun at charging voltage of 18 kV were measured using bi-sensitivity VISAR. The experimental setup, testing method, and experimental results are given in this paper. Several key fact...
Free surface velocity histories of a film flyer driven by electrical gun at charging voltage of 18 kV were measured using bi-sensitivity VISAR. The experimental setup, testing method, and experimental results are given in this paper. Several key fact...
