2006 Vol. 26, No. 4
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2006, 26(4): 289-293.
doi: 10.11883/1001-1455(2006)04-0289-05
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Abstract:
By applying the smoothed particle hydrodynamics (SPH) method to the detonation driving plate problems, a clear wave structure in the metal plate and the varying process of the projection angle were obtained. According to the projection angle equation...
By applying the smoothed particle hydrodynamics (SPH) method to the detonation driving plate problems, a clear wave structure in the metal plate and the varying process of the projection angle were obtained. According to the projection angle equation...
2006, 26(4): 294-302.
doi: 10.11883/1001-1455(2006)04-0294-09
Abstract:
The present paper studies the perforation of circular metallic plates struck by a blunt rigid projectile with a nose-cabin-column. Effects of transverse shear, bending and membrane deformations on the perforation process are included in a rigid-plast...
The present paper studies the perforation of circular metallic plates struck by a blunt rigid projectile with a nose-cabin-column. Effects of transverse shear, bending and membrane deformations on the perforation process are included in a rigid-plast...
2006, 26(4): 303-308.
doi: 10.11883/1001-1455(2006)04-0303-06
Abstract:
A miniature-Hopkinson bar technique, which was used to measure the mechanical behavior of materials at high strain rates, was proposed. For some metals, the strain rate can exceed 104 s-1. The validation of this technique was proven by using laser oc...
A miniature-Hopkinson bar technique, which was used to measure the mechanical behavior of materials at high strain rates, was proposed. For some metals, the strain rate can exceed 104 s-1. The validation of this technique was proven by using laser oc...
2006, 26(4): 309-314.
doi: 10.11883/1001-1455(2006)04-0309-06
Abstract:
For CV non-Fourier media subjected to high heating rates，an iteration method was proposed for the solution of the coupled thermal-mechanical problem. Two uncoupling problems were computed alternately, and the sufficient precision solution was obtaine...
For CV non-Fourier media subjected to high heating rates，an iteration method was proposed for the solution of the coupled thermal-mechanical problem. Two uncoupling problems were computed alternately, and the sufficient precision solution was obtaine...
2006, 26(4): 315-322.
doi: 10.11883/1001-1455(2006)04-0315-08
Abstract:
By using characteristics method of wave propagation, the SHPB tests for the so-called ZWT viscoelastic materials are numerically studied to explore how the basic assumption of uniform distribution of stress along the length of specimen can be satisfi...
By using characteristics method of wave propagation, the SHPB tests for the so-called ZWT viscoelastic materials are numerically studied to explore how the basic assumption of uniform distribution of stress along the length of specimen can be satisfi...
2006, 26(4): 323-327.
doi: 10.11883/1001-1455(2006)04-0323-05
Abstract:
A one-dimensional model was proposed to describe the process of EFP (explosive formed projectile) penetration into a target of finite thickness. The aftereffect prametors and the limit penetrating velocity were calculated with a program based on the ...
A one-dimensional model was proposed to describe the process of EFP (explosive formed projectile) penetration into a target of finite thickness. The aftereffect prametors and the limit penetrating velocity were calculated with a program based on the ...
2006, 26(4): 328-332.
doi: 10.11883/1001-1455(2006)04-0328-05
Abstract:
By three-dimensional finite element dynamic code LS-DYNA3D, the process of collapse, formation, elongation, instability and break-up of rod-like jet is simulated. The predictions of the simulation are in agreement with experimental data. A acceptable...
By three-dimensional finite element dynamic code LS-DYNA3D, the process of collapse, formation, elongation, instability and break-up of rod-like jet is simulated. The predictions of the simulation are in agreement with experimental data. A acceptable...
2006, 26(4): 333-338.
doi: 10.11883/1001-1455(2006)04-0333-06
Abstract:
To achieve the strength criteria under one-dimensional strain condition for a kind of carbon fiber two-dimensional orthogonal plain woven reinforced polymer matrix composite, formulas were proposed to describe the strain rate-dependent stress-strain ...
To achieve the strength criteria under one-dimensional strain condition for a kind of carbon fiber two-dimensional orthogonal plain woven reinforced polymer matrix composite, formulas were proposed to describe the strain rate-dependent stress-strain ...
2006, 26(4): 339-344.
doi: 10.11883/1001-1455(2006)04-0339-06
Abstract:
By comparing the results of Taylor test and computational simulation, a validating and optimizing method on dynamic constitutive model material constants was proposed. This method was applied to the Johnson-Cook model for OFHC copper and some uncerta...
By comparing the results of Taylor test and computational simulation, a validating and optimizing method on dynamic constitutive model material constants was proposed. This method was applied to the Johnson-Cook model for OFHC copper and some uncerta...
2006, 26(4): 345-350.
doi: 10.11883/1001-1455(2006)04-0345-06
Abstract:
In order to explore the effect of the boundary on the pulsation of underwater explosion bubble, the model of the bubble pulsation dynamics of an underwater explosion was proposed, based on the potential flow theory and considering the effects of prox...
In order to explore the effect of the boundary on the pulsation of underwater explosion bubble, the model of the bubble pulsation dynamics of an underwater explosion was proposed, based on the potential flow theory and considering the effects of prox...
2006, 26(4): 351-355.
doi: 10.11883/1001-1455(2006)04-0351-05
Abstract:
In order to improve CCD images received from the flash X-ray radiography, a new method called intelligent median-nonlinear diffusion filtering (IMNDF) were proposed based on nonlinear Partial Differential Equation (PDE). This method takes the advanta...
In order to improve CCD images received from the flash X-ray radiography, a new method called intelligent median-nonlinear diffusion filtering (IMNDF) were proposed based on nonlinear Partial Differential Equation (PDE). This method takes the advanta...
2006, 26(4): 356-360.
doi: 10.11883/1001-1455(2006)04-0356-05
Abstract:
By explosive powder compaction technics, the WC/Al2O3/Cu particle reinforced metal-matrix composites produced are studied, and the effects of process parameters on density of compacts are analyzed. After investigating the microstructure, densificatio...
By explosive powder compaction technics, the WC/Al2O3/Cu particle reinforced metal-matrix composites produced are studied, and the effects of process parameters on density of compacts are analyzed. After investigating the microstructure, densificatio...
2006, 26(4): 361-366.
doi: 10.11883/1001-1455(2006)04-0361-06
Abstract:
Pressure response data on the concrete frustum frontispiece were gotten by simulation experiment detonating the aluminized explosives JHL-3, under the conditions of single charge being initiated, and two charges being initiated symmetrically and non-...
Pressure response data on the concrete frustum frontispiece were gotten by simulation experiment detonating the aluminized explosives JHL-3, under the conditions of single charge being initiated, and two charges being initiated symmetrically and non-...
2006, 26(4): 367-372.
doi: 10.11883/1001-1455(2006)04-0367-06
Abstract:
In order to estimate the anti-penetrating power of reactive power steel fiber concrete, the deformation and failure model of media is presented according to the relation between state of media and energy distribution in the process of penetration of ...
In order to estimate the anti-penetrating power of reactive power steel fiber concrete, the deformation and failure model of media is presented according to the relation between state of media and energy distribution in the process of penetration of ...
2006, 26(4): 373-376.
doi: 10.11883/1001-1455(2006)04-0373-04
Abstract:
By bi-sensitivity VISAR, the shock initiation of JB9014 under divergent spherical shock wave (20 GPa) was experimentally studied. The particle velocity profiles of explosive/window interfaces at different positions were measured. The results show tha...
2006, 26(4): 377-380.
doi: 10.11883/1001-1455(2006)04-0377-04
Abstract:
By scan electric microscope, energy spectroscope, physical observation and chemical dripping, it was found that the deflageration of B/KNO3/RDX produced relatively abundant BN. According to this, a new method of synthesis of BN by the deflageration o...
By scan electric microscope, energy spectroscope, physical observation and chemical dripping, it was found that the deflageration of B/KNO3/RDX produced relatively abundant BN. According to this, a new method of synthesis of BN by the deflageration o...
2006, 26(4): 381-384.
doi: 10.11883/1001-1455(2006)04-0381-04
Abstract:
A method of drop hammer impact sensitivity test for big-bill explosive was developed. The weight of the hammer was 20 kg and the drop height was between 0 ~ 15 m. The size of big-bill explosive was20 mm5 mm and its weight was 2.8 g. Tetryl and JOB-90...
A method of drop hammer impact sensitivity test for big-bill explosive was developed. The weight of the hammer was 20 kg and the drop height was between 0 ~ 15 m. The size of big-bill explosive was20 mm5 mm and its weight was 2.8 g. Tetryl and JOB-90...
