2016 Vol. 36, No. 5
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2016, 36(5): 577-582.
doi: 10.11883/1001-1455(2016)05-0577-06
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Abstract:
In this work we carried out experimental and 3D numerical study of cellular structure of detonation propagating in an annular tube. Detonation cellular patterns were recorded using a smoked foil. Based on the 3D reactive Euler equations with the one-...
In this work we carried out experimental and 3D numerical study of cellular structure of detonation propagating in an annular tube. Detonation cellular patterns were recorded using a smoked foil. Based on the 3D reactive Euler equations with the one-...
2016, 36(5): 583-589.
doi: 10.11883/1001-1455(2016)05-0583-07
Abstract:
In this work, taking into account of the interference of random cracks in the expansion process, we designed a cylindrical sample made with a preset hole. Then, using the Doppler pins system (DPS), we obtained some better curves for the cylinder's ra...
In this work, taking into account of the interference of random cracks in the expansion process, we designed a cylindrical sample made with a preset hole. Then, using the Doppler pins system (DPS), we obtained some better curves for the cylinder's ra...
2016, 36(5): 590-595.
doi: 10.11883/1001-1455(2016)05-0590-06
Abstract:
Under an explosive load a jet, composed by the local melted metal, would be generated and ejected from the crack of a metal plate, whose velocity may reach several kilometers per second while whose mass can only reach several milligrams per centimete...
Under an explosive load a jet, composed by the local melted metal, would be generated and ejected from the crack of a metal plate, whose velocity may reach several kilometers per second while whose mass can only reach several milligrams per centimete...
2016, 36(5): 596-602.
doi: 10.11883/1001-1455(2016)05-0596-07
Abstract:
In the present study, with a view to solve the spallation of ductile metal under intense dynamic loading, we develop a new void coalescence criterion accounting for the damage and void geometry based on the geometric relationship between voids. Follo...
In the present study, with a view to solve the spallation of ductile metal under intense dynamic loading, we develop a new void coalescence criterion accounting for the damage and void geometry based on the geometric relationship between voids. Follo...
2016, 36(5): 603-610.
doi: 10.11883/1001-1455(2016)05-0603-08
Abstract:
In the present work we studied the detonation of Al-RDX suspended in air using CE/SE. The two-phase detonation process of two dusts with different density were simulated and the effects of different particle density on the detonation wave speed and p...
In the present work we studied the detonation of Al-RDX suspended in air using CE/SE. The two-phase detonation process of two dusts with different density were simulated and the effects of different particle density on the detonation wave speed and p...
2016, 36(5): 611-616.
doi: 10.11883/1001-1455(2016)05-0611-06
Abstract:
In order to study the throw characteristics of rock debris after explosion, with a view of solving complicated problems involved in the two-phase gas-solid flow in a penetration channel, we propose a simulation scheme combining the use of FLUENT and ...
In order to study the throw characteristics of rock debris after explosion, with a view of solving complicated problems involved in the two-phase gas-solid flow in a penetration channel, we propose a simulation scheme combining the use of FLUENT and ...
2016, 36(5): 617-624.
doi: 10.11883/1001-1455(2016)05-0617-08
Abstract:
In this paper, the dynamic deformation and failure mode of 5A06 aluminum alloy clamped air-backed circular panels with two different thicknesses subjected to underwater shock loading were investigated using the non-explosive underwater shock loading ...
In this paper, the dynamic deformation and failure mode of 5A06 aluminum alloy clamped air-backed circular panels with two different thicknesses subjected to underwater shock loading were investigated using the non-explosive underwater shock loading ...
2016, 36(5): 625-632.
doi: 10.11883/1001-1455(2016)05-0625-08
Abstract:
In this work, to investigate the penetration performance of a projectile into pre-drilled targets, we proposed and improved a penetration model of an oval-nosed projectile penetrating into the pre-drilled target using the conical pre-drilling assumpt...
In this work, to investigate the penetration performance of a projectile into pre-drilled targets, we proposed and improved a penetration model of an oval-nosed projectile penetrating into the pre-drilled target using the conical pre-drilling assumpt...
2016, 36(5): 633-639.
doi: 10.11883/1001-1455(2016)05-0633-07
Abstract:
In the present work, a testing system consisting of three detonation tubes was designed in a regular triangle to investigate the noise characteristics of a three-tube PDE system and their formation mechanism. The distance between each tube and the ce...
In the present work, a testing system consisting of three detonation tubes was designed in a regular triangle to investigate the noise characteristics of a three-tube PDE system and their formation mechanism. The distance between each tube and the ce...
2016, 36(5): 640-647.
doi: 10.11883/1001-1455(2016)05-0640-08
Abstract:
In this work, using a 5083 aluminum alloy plate (4 mm×410 mm×410 mm) and a Q345 steel plate with dovetail grooves (15 mm×400 mm×400 mm) as the flyer and base plates, and based on the lower limit of explosive welding of aluminum alloy with steel calcu...
In this work, using a 5083 aluminum alloy plate (4 mm×410 mm×410 mm) and a Q345 steel plate with dovetail grooves (15 mm×400 mm×400 mm) as the flyer and base plates, and based on the lower limit of explosive welding of aluminum alloy with steel calcu...
2016, 36(5): 648-654.
doi: 10.11883/1001-1455(2016)05-0648-07
Abstract:
The impact fracture process of the magnalium alloy structure was investigated using the XFEM-based cohesive model. First, by the numerical modeling carried out in abaqus software based on XFEM, the fracture mode of magnalium alloy specimens at differ...
The impact fracture process of the magnalium alloy structure was investigated using the XFEM-based cohesive model. First, by the numerical modeling carried out in abaqus software based on XFEM, the fracture mode of magnalium alloy specimens at differ...
2016, 36(5): 655-662.
doi: 10.11883/1001-1455(2016)05-0655-08
Abstract:
In this work, by accurately measuring the bullet speed of the Hopkinson bar, we succeeded in the dynamic calibration of the PVDF pressure sensor. The test data obtained have a good linearity and a deviation below 1.9%. The coefficient value K of dyna...
In this work, by accurately measuring the bullet speed of the Hopkinson bar, we succeeded in the dynamic calibration of the PVDF pressure sensor. The test data obtained have a good linearity and a deviation below 1.9%. The coefficient value K of dyna...
2016, 36(5): 663-669.
doi: 10.11883/1001-1455(2016)05-0663-07
Abstract:
In this work, to find out the formation mechanism of rock's initial damaged zone under explosive impact effect and investigate the main factors contributing to the initial damaged zone (including the crushed zone and the initial fractured zone) aroun...
In this work, to find out the formation mechanism of rock's initial damaged zone under explosive impact effect and investigate the main factors contributing to the initial damaged zone (including the crushed zone and the initial fractured zone) aroun...
2016, 36(5): 670-679.
doi: 10.11883/1001-1455(2016)05-0670-10
Abstract:
In this paper, to study preventive ways against incidents involving the impact of steel plate concrete (SC) structures, the steel plate concrete (SC) walls composed of surface steel plates, tie-bars, shear studs and concretes were selected as the obj...
In this paper, to study preventive ways against incidents involving the impact of steel plate concrete (SC) structures, the steel plate concrete (SC) walls composed of surface steel plates, tie-bars, shear studs and concretes were selected as the obj...
2016, 36(5): 680-687.
doi: 10.11883/1001-1455(2016)05-0680-08
Abstract:
Gasoline-air, being composed of combustible components, is apt to brings about explosion accidents. In order to study the laws governing its venting explosion in a confined space, we carried out visualization experiments on a single pore and double p...
Gasoline-air, being composed of combustible components, is apt to brings about explosion accidents. In order to study the laws governing its venting explosion in a confined space, we carried out visualization experiments on a single pore and double p...
2016, 36(5): 688-694.
doi: 10.11883/1001-1455(2016)05-0688-07
Abstract:
In this artical, firstly, estimation method of flame combustion regime of the oil-gas explosion was discussed and three oil-gas explosion experiments under the conditions of low, middle and high initial gas vapor concentration were carried out, and t...
In this artical, firstly, estimation method of flame combustion regime of the oil-gas explosion was discussed and three oil-gas explosion experiments under the conditions of low, middle and high initial gas vapor concentration were carried out, and t...
2016, 36(5): 695-702.
doi: 10.11883/1001-1455(2016)05-0695-08
Abstract:
During the tunneling construction in hard granite strata utilizing shield machines, pretreatment of boulders by blasting was commonly used to prevent the abrading cutter from serious damages and reduce construction risks, but the explosive consumptio...
During the tunneling construction in hard granite strata utilizing shield machines, pretreatment of boulders by blasting was commonly used to prevent the abrading cutter from serious damages and reduce construction risks, but the explosive consumptio...
2016, 36(5): 703-709.
doi: 10.11883/1001-1455(2016)05-0703-07
Abstract:
Duration of blasting vibration and delayed time interval of millisecond blasting are respectively an important indicator for assessing and controlling blasting hazards. It is therefore of great necessity to explore the factors that may influence the ...
Duration of blasting vibration and delayed time interval of millisecond blasting are respectively an important indicator for assessing and controlling blasting hazards. It is therefore of great necessity to explore the factors that may influence the ...
2016, 36(5): 710-714.
doi: 10.11883/1001-1455(2016)05-0710-05
Abstract:
Impact load is applicable to material science and engineering. With the research development, there is a higher requirement for the impacting velocity and energy, which are however beyond what the drop hammer can achieve. High-power pulse current can...
Impact load is applicable to material science and engineering. With the research development, there is a higher requirement for the impacting velocity and energy, which are however beyond what the drop hammer can achieve. High-power pulse current can...
2016, 36(5): 715-720.
doi: 10.11883/1001-1455(2016)05-0715-06
Abstract:
Graphite intercalation compounds (GICs) can be obtained when graphite is placed in strong oxidizing acids. Using this characteristic, we prepare liquid explosive by putting natural graphite in strong HNO3 and mixing it with CH3NO2. Then we poured the...
Graphite intercalation compounds (GICs) can be obtained when graphite is placed in strong oxidizing acids. Using this characteristic, we prepare liquid explosive by putting natural graphite in strong HNO3 and mixing it with CH3NO2. Then we poured the...
2016, 36(5): 721-727.
doi: 10.11883/1001-1455(2016)05-0721-07
Abstract:
To investigate the working conditions of a missile in a high-impact environment, this paper presents a design scheme for low-power consuming and high-overload testing system based on an MEMS apiezoresistive sensor. The system is capable of withstandi...
To investigate the working conditions of a missile in a high-impact environment, this paper presents a design scheme for low-power consuming and high-overload testing system based on an MEMS apiezoresistive sensor. The system is capable of withstandi...
2016, 36(5): 728-733.
doi: 10.11883/1001-1455(2016)05-0728-06
Abstract:
In this work, we investigated the process of penetration and energy release of the impact initiated projectile was investigated using numerical simulation, verified the superiority of the coupling of smooth particle hydrodynamics (SPH) with finite el...
In this work, we investigated the process of penetration and energy release of the impact initiated projectile was investigated using numerical simulation, verified the superiority of the coupling of smooth particle hydrodynamics (SPH) with finite el...
2016, 36(5): 734-738.
doi: 10.11883/1001-1455(2016)05-0734-05
Abstract:
Indentation responses and deformation characteristics of closed-cell aluminum foams under elevated temperatures were experimentally investigated by using a flat-ended punch (FEP) and a hemispherical-ended punch (SEP). Based on the quasi-static experi...
Indentation responses and deformation characteristics of closed-cell aluminum foams under elevated temperatures were experimentally investigated by using a flat-ended punch (FEP) and a hemispherical-ended punch (SEP). Based on the quasi-static experi...
