2007 Vol. 27, No. 3
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2007, 27(3): 193-197.
doi: 10.11883/1001-1455(2007)03-0193-05
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Abstract:
Using a gas gun, a set of plate impact experiments were performed for 20 steel by measuring the rear free-surface velocity profiles with a velocity interferometer system for any reflector (VISAR). Experiments were arranged by adjusting the thicknesse...
Using a gas gun, a set of plate impact experiments were performed for 20 steel by measuring the rear free-surface velocity profiles with a velocity interferometer system for any reflector (VISAR). Experiments were arranged by adjusting the thicknesse...
2007, 27(3): 198-223.
doi: 10.11883/1001-1455(2007)03-0198-06
Abstract:
Some instability analyses were carried out according to the experimental results of primary breakup of symmetrical spray of water and anhydrous-ethanol.It is shown that the process of primary breakup can be divided into two stages in the experimental...
Some instability analyses were carried out according to the experimental results of primary breakup of symmetrical spray of water and anhydrous-ethanol.It is shown that the process of primary breakup can be divided into two stages in the experimental...
2007, 27(3): 204-209.
doi: 10.11883/1001-1455(2007)03-0204-06
Abstract:
Based on the two-dimensional axisymmetric Euler equations coupling with chemical reactions, the phenomena of implosion wave in the inertia medium and interaction of the implosion flame with shock in the hydrogen-air mixture were numerically studied b...
Based on the two-dimensional axisymmetric Euler equations coupling with chemical reactions, the phenomena of implosion wave in the inertia medium and interaction of the implosion flame with shock in the hydrogen-air mixture were numerically studied b...
2007, 27(3): 210-216.
doi: 10.11883/1001-1455(2007)03-0210-07
Abstract:
By using Instron 1342 testing system and an improved SHPB technique, PP/PA blends were tested at a wide range of strain rates from 10-4 up to 103 s-1 and at a temperature range of 25~80 ℃. Their mechanical responses are shown to be sensitive both to ...
By using Instron 1342 testing system and an improved SHPB technique, PP/PA blends were tested at a wide range of strain rates from 10-4 up to 103 s-1 and at a temperature range of 25~80 ℃. Their mechanical responses are shown to be sensitive both to ...
2007, 27(3): 217-222.
doi: 10.11883/1001-1455(2007)03-0217-06
Abstract:
Impact tests of a new kind of pavement material for concrete bridge deck, steel fiber reinforced and polymer modified concrete (SFRPMC), were carried out by using a large cross-section SHPB system. The impact behaviors of the new material were compar...
Impact tests of a new kind of pavement material for concrete bridge deck, steel fiber reinforced and polymer modified concrete (SFRPMC), were carried out by using a large cross-section SHPB system. The impact behaviors of the new material were compar...
2007, 27(3): 223-229.
doi: 10.11883/1001-1455(2007)03-0223-07
Abstract:
An investigation into the energy absorption behaviors of axially splitting thin-walled metal tubes with polygonal sections was carried out. Curl radius and crushing forces were theoretically calculated for the system under quasi-static load. Numerica...
An investigation into the energy absorption behaviors of axially splitting thin-walled metal tubes with polygonal sections was carried out. Curl radius and crushing forces were theoretically calculated for the system under quasi-static load. Numerica...
2007, 27(3): 230-235.
doi: 10.11883/1001-1455(2007)03-0230-06
Abstract:
Using the loading technique of electrical explosion of metallic foil driving the polyester film flyer to produce short-duration pulse shock wave, the shock initiation characteristics of a TATB/HMX based explosive were studied according to the DRM (de...
Using the loading technique of electrical explosion of metallic foil driving the polyester film flyer to produce short-duration pulse shock wave, the shock initiation characteristics of a TATB/HMX based explosive were studied according to the DRM (de...
2007, 27(3): 236-239.
doi: 10.11883/1001-1455(2007)03-0236-04
Abstract:
A new reaction model was proposed by thinking of the excitation process and slow reaction in the detonation process of insensitive high explosives (IHE). This reaction model can be used in coarse mesh as compared with other reaction model. In the mes...
A new reaction model was proposed by thinking of the excitation process and slow reaction in the detonation process of insensitive high explosives (IHE). This reaction model can be used in coarse mesh as compared with other reaction model. In the mes...
2007, 27(3): 240-245.
doi: 10.11883/1001-1455(2007)03-0240-06
Abstract:
Numerical simulations of non-spherical projectiles hypervelocity impact on single bumper shield at normal angles were carried out using the SPH (smoothed particle hydrodynamics) technique of AUTODYN hydro-codes. The results of 2D and 3D simulation we...
Numerical simulations of non-spherical projectiles hypervelocity impact on single bumper shield at normal angles were carried out using the SPH (smoothed particle hydrodynamics) technique of AUTODYN hydro-codes. The results of 2D and 3D simulation we...
2007, 27(3): 246-250.
doi: 10.11883/1001-1455(2007)03-0246-05
Abstract:
In order to describe the adiabatic shearing localization of the projectile that impacts to concrete, the model of adiabatic shearing localization for projectile that impacts to concrete was proposed according to the results of one-dimensional analysi...
In order to describe the adiabatic shearing localization of the projectile that impacts to concrete, the model of adiabatic shearing localization for projectile that impacts to concrete was proposed according to the results of one-dimensional analysi...
2007, 27(3): 251-258.
doi: 10.11883/1001-1455(2007)03-0251-08
Abstract:
The downstream detonation initiation induced by interaction between the shock wave and the single rectangle obstacle interaction was simulated numerically. The upstream detonation forming and its following wave dynamics which initiated the downstream...
The downstream detonation initiation induced by interaction between the shock wave and the single rectangle obstacle interaction was simulated numerically. The upstream detonation forming and its following wave dynamics which initiated the downstream...
2007, 27(3): 259-264.
doi: 10.11883/1001-1455(2007)03-0259-07
Abstract:
The distribution of state parameters for detonation products behind the wave front, the relationship between the effective explosive volume and cylindrical charge geometry, the state equation of detonation products and the expressions of strong deton...
The distribution of state parameters for detonation products behind the wave front, the relationship between the effective explosive volume and cylindrical charge geometry, the state equation of detonation products and the expressions of strong deton...
2007, 27(3): 266-271.
doi: 10.11883/1001-1455(2007)03-0266-06
Abstract:
In order to inspect longitudinal stress-corrosion cracks of large-diameter functionally graded pipes more efficiently, guided circumferential waves in infinitely long hollow cylinders were studied by an orthogonal polynomial approach. Properties of m...
In order to inspect longitudinal stress-corrosion cracks of large-diameter functionally graded pipes more efficiently, guided circumferential waves in infinitely long hollow cylinders were studied by an orthogonal polynomial approach. Properties of m...
2007, 27(3): 272-278.
doi: 10.11883/1001-1455(2007)03-0272-06
Abstract:
The formation of a normal blasting crater for the break blasting of a roadway in rock with high residual stress was investigated based on the theory of cylindrical blasting crater. The criterion on the formation of a normal blasting crater, and the p...
The formation of a normal blasting crater for the break blasting of a roadway in rock with high residual stress was investigated based on the theory of cylindrical blasting crater. The criterion on the formation of a normal blasting crater, and the p...
2007, 27(3): 278-282.
doi: 10.11883/1001-1455(2007)03-0278-05
Abstract:
The digital holographic theories and application in explosion were discussed. The digital hologram of micro-jet from Al flyer with a small conical hole in center under shock load was obtained, based on the questions solved about the resolving power, ...
The digital holographic theories and application in explosion were discussed. The digital hologram of micro-jet from Al flyer with a small conical hole in center under shock load was obtained, based on the questions solved about the resolving power, ...
2007, 27(3): 283-288.
doi: 10.11883/1001-1455(2007)03-0283-06
Abstract:
The dynamic unloading effect of initial stress in hydrostatic field in excavation process of circlar tunnel by blasting under high geostress condition was studied and the damage field was caculated.In the process of dynamic unloading, the radial stre...
The dynamic unloading effect of initial stress in hydrostatic field in excavation process of circlar tunnel by blasting under high geostress condition was studied and the damage field was caculated.In the process of dynamic unloading, the radial stre...
