2016 Vol. 36, No. 6
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2016, 36(6): 745-751.
doi: 10.11883/1001-1455(2016)06-0745-07
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Abstract:
In order to study the explosive friction safety, a numerical simulation of high explosive friction sensitivity experiment was performed based on a melting friction model. The numerical results agree with the experiment results. The law of friction se...
In order to study the explosive friction safety, a numerical simulation of high explosive friction sensitivity experiment was performed based on a melting friction model. The numerical results agree with the experiment results. The law of friction se...
2016, 36(6): 752-758.
doi: 10.11883/1001-1455(2016)06-0752-07
Abstract:
This paper carried out high-speed penetration experiments using semi-infinite plain concrete targets with different projectile materials and aspect ratios to investigate the effects of striking velocity and material strength on projectile loss and pe...
This paper carried out high-speed penetration experiments using semi-infinite plain concrete targets with different projectile materials and aspect ratios to investigate the effects of striking velocity and material strength on projectile loss and pe...
2016, 36(6): 759-766.
doi: 10.11883/1001-1455(2016)06-0759-08
Abstract:
The coefficient of the ultimate elongation is one of significant parameters related with theoretical calculations of a shaped charge jet (SCJ). Based on the effect of a longitudinal magnetic field on the stress-strain of SCJ, and following the motion...
The coefficient of the ultimate elongation is one of significant parameters related with theoretical calculations of a shaped charge jet (SCJ). Based on the effect of a longitudinal magnetic field on the stress-strain of SCJ, and following the motion...
2016, 36(6): 774-780.
doi: 10.11883/1001-1455(2016)06-0774-07
Abstract:
An experimental method in the confinement vessel for silver aerosol source-term investigation of metal under high explosive detonation was designed to simulate the plutonium aerosol source-term of nuclear devices under the circumstance of high explos...
An experimental method in the confinement vessel for silver aerosol source-term investigation of metal under high explosive detonation was designed to simulate the plutonium aerosol source-term of nuclear devices under the circumstance of high explos...
2016, 36(6): 781-788.
doi: 10.11883/1001-1455(2016)06-0781-08
Abstract:
The supercavitating projectile is a new underwater weapon with high speed and kinetic energy. Based on the theory of the ideal compressible potential flow, and taking into account of the gravity effect, an unified theoretical model and numerical calc...
The supercavitating projectile is a new underwater weapon with high speed and kinetic energy. Based on the theory of the ideal compressible potential flow, and taking into account of the gravity effect, an unified theoretical model and numerical calc...
2016, 36(6): 789-796.
doi: 10.11883/1001-1455(2016)06-0789-08
Abstract:
In this paper, we investigated a novel method by carrying out a sclaed down underwater explosion experiment on a centrifuge apparatus and set up the similarity theory between the scaled down and actual underwater explosion experiment. Using numerical...
In this paper, we investigated a novel method by carrying out a sclaed down underwater explosion experiment on a centrifuge apparatus and set up the similarity theory between the scaled down and actual underwater explosion experiment. Using numerical...
2016, 36(6): 797-802.
doi: 10.11883/1001-1455(2016)06-0797-06
Abstract:
The critical ricochet angle of a penetrator impacting hard targets obliquely needs to be analyzed and estimated to ensure that no ricochet occur while the penetrator hits the targets. In this work the experiments on the ricochet performance of the pe...
The critical ricochet angle of a penetrator impacting hard targets obliquely needs to be analyzed and estimated to ensure that no ricochet occur while the penetrator hits the targets. In this work the experiments on the ricochet performance of the pe...
2016, 36(6): 825-831.
doi: 10.11883/1001-1455(2016)06-0825-07
Abstract:
The influences of the blast loading rate, the distance from the guide hole to the free boundary and the radius of the guide hole between the two charge holes, on the dynamic propagation of cracks in rock were studied using realistic failure process a...
The influences of the blast loading rate, the distance from the guide hole to the free boundary and the radius of the guide hole between the two charge holes, on the dynamic propagation of cracks in rock were studied using realistic failure process a...
2016, 36(6): 832-838.
doi: 10.11883/1001-1455(2016)06-0832-07
Abstract:
In order to investigate the flame characteristics of gasoline-air mixture deflagration in a confined space, visualized experiments were performed at different equivalence ratios. Three flame patterns of gasoline-air deflagration were proposed: smooth...
In order to investigate the flame characteristics of gasoline-air mixture deflagration in a confined space, visualized experiments were performed at different equivalence ratios. Three flame patterns of gasoline-air deflagration were proposed: smooth...
2016, 36(6): 839-846.
doi: 10.11883/1001-1455(2016)06-0839-08
Abstract:
In order to improve the blasting vibration and boost the efficiency of blasting energy, this paper mainly focuses on the delay time control research through transmission law. We performed an experiment with a delayed-detonation scheme in different pe...
In order to improve the blasting vibration and boost the efficiency of blasting energy, this paper mainly focuses on the delay time control research through transmission law. We performed an experiment with a delayed-detonation scheme in different pe...
2016, 36(6): 847-852.
doi: 10.11883/1001-1455(2016)06-0847-06
Abstract:
In this work experiments were carried out to investigate the effect of ignition locations and vent burst pressures on the pressure profile and the flame propagation during explosion venting of hydrogen-air mixtures. The results indicate that, in all ...
In this work experiments were carried out to investigate the effect of ignition locations and vent burst pressures on the pressure profile and the flame propagation during explosion venting of hydrogen-air mixtures. The results indicate that, in all ...
2016, 36(6): 853-860.
doi: 10.11883/1001-1455(2016)06-0853-08
Abstract:
In this work, based on the similarity theory, we conducted a model experiment to study the vibration effect and damage evolution of rocks surrounding a tunnel in push-type cyclic blasting excavation. The model was constructed with a ratio of 1: 15. B...
In this work, based on the similarity theory, we conducted a model experiment to study the vibration effect and damage evolution of rocks surrounding a tunnel in push-type cyclic blasting excavation. The model was constructed with a ratio of 1: 15. B...
2016, 36(6): 861-868.
doi: 10.11883/1001-1455(2016)06-0861-08
Abstract:
In this work, the standard genetic algorithm (SGA) was parallel processed using multiple parallel structures. Based on the structures, a multiple-population genetic algorithm (MPGA) was established by introducing the immigration operator and quintess...
In this work, the standard genetic algorithm (SGA) was parallel processed using multiple parallel structures. Based on the structures, a multiple-population genetic algorithm (MPGA) was established by introducing the immigration operator and quintess...
2016, 36(6): 869-875.
doi: 10.11883/1001-1455(2016)06-0869-07
Abstract:
During high strain rate and large strain deformation of crystalline metals, there exist phenomena of continuous refinement of microstructural characteristic length, like the size of dislocation cells, which occurs intensively and would have significa...
During high strain rate and large strain deformation of crystalline metals, there exist phenomena of continuous refinement of microstructural characteristic length, like the size of dislocation cells, which occurs intensively and would have significa...
2016, 36(6): 876-882.
doi: 10.11883/1001-1455(2016)06-0876-07
Abstract:
To understand the energy evolution mechanism in the rock failure process, this paper firstly obtained the meso-mechanical parameters of granite using uniaxial compression experiments and particle flow codes, then tested the granite under different co...
To understand the energy evolution mechanism in the rock failure process, this paper firstly obtained the meso-mechanical parameters of granite using uniaxial compression experiments and particle flow codes, then tested the granite under different co...
2016, 36(6): 739-744.
doi: 10.11883/1001-1455(2016)06-0739-06
Abstract:
In this work the instability of the metal shell in the cylindrical implosion was studied numerically using a multi-component elastic-plastic hydrodynamic Eulerian code. Agreeing with those of the experiments, the numerical results show that the mater...
In this work the instability of the metal shell in the cylindrical implosion was studied numerically using a multi-component elastic-plastic hydrodynamic Eulerian code. Agreeing with those of the experiments, the numerical results show that the mater...
2016, 36(6): 767-773.
doi: 10.11883/1001-1455(2016)06-0767-07
Abstract:
Spall experiments of pure aluminum were performed on the light-gas gun equipment and SG Ⅱ high energy laser facility. An improved target configuration was applied to address the problem that the residual vibration was often lost in laser-loading spal...
Spall experiments of pure aluminum were performed on the light-gas gun equipment and SG Ⅱ high energy laser facility. An improved target configuration was applied to address the problem that the residual vibration was often lost in laser-loading spal...
2016, 36(6): 803-810.
doi: 10.11883/1001-1455(2016)06-0803-08
Abstract:
In this study, experimental investigations on the liquid's explosive dispersal under different shell constraints were carried out, effects of shell constraints on the early characteristics of the flow field were discussed, and the mechanism for liqui...
In this study, experimental investigations on the liquid's explosive dispersal under different shell constraints were carried out, effects of shell constraints on the early characteristics of the flow field were discussed, and the mechanism for liqui...
2016, 36(6): 811-818.
doi: 10.11883/1001-1455(2016)06-0811-08
Abstract:
The limit hinge is one of key technologies in the design of evolvable warheads, and its damage efficiency is determined by keeping its integrity in the deploying process of the warhead. In this paper, a novel hinge with energy absorption properties w...
The limit hinge is one of key technologies in the design of evolvable warheads, and its damage efficiency is determined by keeping its integrity in the deploying process of the warhead. In this paper, a novel hinge with energy absorption properties w...
2016, 36(6): 819-824.
doi: 10.11883/1001-1455(2016)06-0819-06
Abstract:
Electromagnetic driving expanding ring experiment and explosive expanding ring experiment are two important means for obtaining dynamic tensile mechanical properties of materials. In this study, they were carried out to investigate the dynamic behavi...
Electromagnetic driving expanding ring experiment and explosive expanding ring experiment are two important means for obtaining dynamic tensile mechanical properties of materials. In this study, they were carried out to investigate the dynamic behavi...
