2005 Vol. 25, No. 1
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2005, 25(1): 1-4.
doi: 10.11883/1001-1455(2005)01-0001-04
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Abstract:
Starting from the momentum equation, a projection angle equation of the planar flyer plate under detonation driving is derived in the moving reference frame by regarding the material as incompressible fluid and considering the force between the neigh...
Starting from the momentum equation, a projection angle equation of the planar flyer plate under detonation driving is derived in the moving reference frame by regarding the material as incompressible fluid and considering the force between the neigh...
2005, 25(1): 5-10.
doi: 10.11883/1001-1455(2005)01-0005-06
Abstract:
The vented external flow field was visualized using the experimental and numerical methods. The YA-16 high speed shadowgraph system was adopted in test to obtain the consequential clear shadowgraphs of the external flow field. And the explosion venti...
The vented external flow field was visualized using the experimental and numerical methods. The YA-16 high speed shadowgraph system was adopted in test to obtain the consequential clear shadowgraphs of the external flow field. And the explosion venti...
2005, 25(1): 11-16.
doi: 10.11883/1001-1455(2005)01-0011-06
Abstract:
Based on the K- turbulence model and the eddy dissipation combustion model, the explosion venting to the air in a cylindrical vessel filled with the stoichiometric methane-air mixture was simulated using the colocated grid SIMPLE scheme. The dominant...
Based on the K- turbulence model and the eddy dissipation combustion model, the explosion venting to the air in a cylindrical vessel filled with the stoichiometric methane-air mixture was simulated using the colocated grid SIMPLE scheme. The dominant...
2005, 25(1): 17-25.
doi: 10.11883/1001-1455（2005）01-0017-09
Abstract:
Two approaches are usually used in the studies of dynamic constitutive relation of materials. One is to determine the constitutive relation from the wave propagating signals (the so-called second class of inverse problems). The another is to de-coupl...
Two approaches are usually used in the studies of dynamic constitutive relation of materials. One is to determine the constitutive relation from the wave propagating signals (the so-called second class of inverse problems). The another is to de-coupl...
2005, 25(1): 26-30.
doi: 10.11883/1001-1455(2005)01-0026-05
Abstract:
This article reports Ignition and Growth equations of aluminized explosives containing oxidizer (RDX/AP/Al/HTPB=20/43/25/12). VLW EOS (equations of state) is applied to calculate the parameters of JWL EOS for this explosives. The free-surface velocit...
This article reports Ignition and Growth equations of aluminized explosives containing oxidizer (RDX/AP/Al/HTPB=20/43/25/12). VLW EOS (equations of state) is applied to calculate the parameters of JWL EOS for this explosives. The free-surface velocit...
2005, 25(1): 31-34.
doi: 10.11883/1001-1455(2005)01-0031-04
Abstract:
A double sensitivity VISAR system is used to measure the flyer velocity of electrically exploding foil initiator. The flyer surface is treated by plating a metal film, which eliminates the interference caused by bridge foil exploding, and enhances th...
A double sensitivity VISAR system is used to measure the flyer velocity of electrically exploding foil initiator. The flyer surface is treated by plating a metal film, which eliminates the interference caused by bridge foil exploding, and enhances th...
2005, 25(1): 35-40.
doi: 10.11883/1001-1455(2005)01-0035-06
Abstract:
The anomalous response of elastic-plastic circular plate subjected to various rectangle and triangle impulse loadings is studied. The influences of various loading modes and loading areas on the counter-intuitive behavior of the plate are numerically...
The anomalous response of elastic-plastic circular plate subjected to various rectangle and triangle impulse loadings is studied. The influences of various loading modes and loading areas on the counter-intuitive behavior of the plate are numerically...
2005, 25(1): 41-46.
doi: 10.11883/1001-1455(2005)01-0041-06
Abstract:
This paper summarizes some test and theoretical results and evaluates several experimental formulas for estimating the penetration and scabbing limit thickness of concrete targets under projectile impact. The parameters of four types of missiles with...
This paper summarizes some test and theoretical results and evaluates several experimental formulas for estimating the penetration and scabbing limit thickness of concrete targets under projectile impact. The parameters of four types of missiles with...
2005, 25(1): 47-53.
doi: 10.11883/1001-1455(2005)01-0047-07
Abstract:
The hypervelocity impact simulation result is studied about 9.53 mm Al-shpere impacting 2.2 mm Al-target at 6.64 km/s to analyze the macro phenomena. It is shown that the SPH simulations with Steinberg material model and Mie-Grneisen EOS are in accor...
The hypervelocity impact simulation result is studied about 9.53 mm Al-shpere impacting 2.2 mm Al-target at 6.64 km/s to analyze the macro phenomena. It is shown that the SPH simulations with Steinberg material model and Mie-Grneisen EOS are in accor...
2005, 25(1): 54-58.
doi: 10.11883/1001-1455(2005)01-0054-05
Abstract:
The expansion of the blast cavity of de-coupling charge in coal is investigated using the pulse X-radiation photography. The expansion speed and bound of the cavity, the energy transferring factor of shock wave, and the particle velocity at different...
The expansion of the blast cavity of de-coupling charge in coal is investigated using the pulse X-radiation photography. The expansion speed and bound of the cavity, the energy transferring factor of shock wave, and the particle velocity at different...
2005, 25(1): 59-63.
doi: 10.11883/1001-1455(2005)01-0059-05
Abstract:
Nubbly corundum concrete is a new type defending material, whose anti-penetration characteristics can be affected by many factors. In this paper, the penetration of the nubbly corundum concrete by projectiles with different hit velocity is experiment...
Nubbly corundum concrete is a new type defending material, whose anti-penetration characteristics can be affected by many factors. In this paper, the penetration of the nubbly corundum concrete by projectiles with different hit velocity is experiment...
2005, 25(1): 64-68.
doi: 10.11883/1001-1455(2005)01-0064-05
Abstract:
The blasting toe-shooting method is a new technique for soft foundation treatment. The mechanism of blasting toe-shooting method used in mountainous area is studied. Based on the basic theory of soil mechanics and explosive mechanics, the formula of ...
The blasting toe-shooting method is a new technique for soft foundation treatment. The mechanism of blasting toe-shooting method used in mountainous area is studied. Based on the basic theory of soil mechanics and explosive mechanics, the formula of ...
2005, 25(1): 70-73.
doi: 10.11883/1001-1455(2005)01-0070-04
Abstract:
Extrusion-cast explosive (ECX) is a new type of composite explosive with high energy and low vulnerability. It can be expected that for ECX wide applications will be found in warhead of high performance weapons. In this work, four ECX with HMX were d...
Extrusion-cast explosive (ECX) is a new type of composite explosive with high energy and low vulnerability. It can be expected that for ECX wide applications will be found in warhead of high performance weapons. In this work, four ECX with HMX were d...
2005, 25(1): 74-79.
doi: 10.11883/1001-1455(2005)01-0074-06
Abstract:
The rupture modes of thin metal circular plates struck by conical-nosed missiles were experimentally studied at the critical rupture speeds. The modes of piercing, petalling and plugging appeared respectively with increasing cone half-angles. A failu...
The rupture modes of thin metal circular plates struck by conical-nosed missiles were experimentally studied at the critical rupture speeds. The modes of piercing, petalling and plugging appeared respectively with increasing cone half-angles. A failu...
2005, 25(1): 80-84.
doi: 10.11883/1001-1455(2005)01-0080-05
Abstract:
Dynamic compression experiments on a special steel were carried out using a common SHPB system and a two-specimen SHPB system. The dynamic compression stress-strain curves were obtained for different strain rate history. The effect of strain rate his...
Dynamic compression experiments on a special steel were carried out using a common SHPB system and a two-specimen SHPB system. The dynamic compression stress-strain curves were obtained for different strain rate history. The effect of strain rate his...
2005, 25(1): 85-89.
doi: 10.11883/1001-1455(2005)01-0085-05
Abstract:
The BPM2D (beam-particle model in two dimensions) was used to simulate the problem of concrete penetration. Three types of beam in the BPM2D were used to create numerical models of concrete. The mechanical properties of each type of beam were randoml...
The BPM2D (beam-particle model in two dimensions) was used to simulate the problem of concrete penetration. Three types of beam in the BPM2D were used to create numerical models of concrete. The mechanical properties of each type of beam were randoml...
2005, 25(1): 90-96.
doi: 10.11883/1001-1455(2005)01-0090-07
Abstract:
The dynamic response of simply supporting rigid-plastic circular plate is analyzed using the plastic limit method along with Taylor plate theory. Parameters including maximum residual deformation field are obtained and compared with the FEM results. ...
The dynamic response of simply supporting rigid-plastic circular plate is analyzed using the plastic limit method along with Taylor plate theory. Parameters including maximum residual deformation field are obtained and compared with the FEM results. ...
