2014 Vol. 34, No. 1
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2014, 34(1): 1-5.
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Abstract:
To investigate the dynamic strength behaviors of a Zr-based bulk metallic glass(BMG), Zr51Ti5Ni10Cu25Al9(in atomic percent), a series of reverse-impact experiments were performed in the peak shock stress range from 37to 66GPa.A displacement interfero...
To investigate the dynamic strength behaviors of a Zr-based bulk metallic glass(BMG), Zr51Ti5Ni10Cu25Al9(in atomic percent), a series of reverse-impact experiments were performed in the peak shock stress range from 37to 66GPa.A displacement interfero...
2014, 34(1): 6-10.
Abstract:
The explosive compaction-coating technology was introduced in detail and was used to prepare the large-area copper coating.And the surface morphology, element content and thickness of the prepared copper coating were investigated by means of optical ...
The explosive compaction-coating technology was introduced in detail and was used to prepare the large-area copper coating.And the surface morphology, element content and thickness of the prepared copper coating were investigated by means of optical ...
2014, 34(1): 11-16.
Abstract:
Aimed to the limitations of the existent calculation methods for the shock factor of the underwater explosion in near field，a new formula for the shock factor determination was derived from the product of the shock－wave peak pressure and the positive...
2014, 34(1): 17-22.
doi: 10.11883/1001-1455(2014)01-0017-06
Abstract:
According to the time effect of particle dispersion and sedimentation during the dust cloud formation, the paper points out that the internationally accepted method that only by the gas phase turbulence degrees or single dust concentration to set the...
According to the time effect of particle dispersion and sedimentation during the dust cloud formation, the paper points out that the internationally accepted method that only by the gas phase turbulence degrees or single dust concentration to set the...
2014, 34(1): 23-27.
doi: 10.11883/1001-1455(2014)01-0023-05
Abstract:
To investigate the effects of the laneway surfaces on the methane explosion, the mechanism of the methane explosion was analyzed and a physical model for the laneway was proposed.Based on the above, numerical simulations were conducted to explore the...
To investigate the effects of the laneway surfaces on the methane explosion, the mechanism of the methane explosion was analyzed and a physical model for the laneway was proposed.Based on the above, numerical simulations were conducted to explore the...
2014, 34(1): 28-34.
doi: 10.11883/1001-1455(2014)01-0028-07
Abstract:
The fly-ash cenospheres-reinforced 1199Al-matrix composite foam was prepared by the pressure infiltration technique, in which containing the 80-μm-sized fly-ash cenospheres with the volume fraction of 0.4.Dynamic compression experiments were performe...
The fly-ash cenospheres-reinforced 1199Al-matrix composite foam was prepared by the pressure infiltration technique, in which containing the 80-μm-sized fly-ash cenospheres with the volume fraction of 0.4.Dynamic compression experiments were performe...
2014, 34(1): 35-40.
doi: 10.11883/1001-1455(2014)01-0035-06
Abstract:
The typical copper liner with a small cone angle was divided into four sections along the bus direction via the explicit finite software LS-DYNA, and the tracer point method was used to study the movement of the liner element and the structure module...
The typical copper liner with a small cone angle was divided into four sections along the bus direction via the explicit finite software LS-DYNA, and the tracer point method was used to study the movement of the liner element and the structure module...
2014, 34(1): 41-46.
doi: 10.11883/1001-1455(2014)01-0041-06
Abstract:
The in-plane dynamic behaviors of metal honeycombs filled by cells with various configurations and arrangements are studied by the finite element method using ANSYS/LS-DYNA.The deformation modes, crushing strength and energy-absorption ability are co...
The in-plane dynamic behaviors of metal honeycombs filled by cells with various configurations and arrangements are studied by the finite element method using ANSYS/LS-DYNA.The deformation modes, crushing strength and energy-absorption ability are co...
2014, 34(1): 47-51.
doi: 10.11883/1001-1455(2014)01-0047-05
Abstract:
By using the precision shaped charge warheads with the caliber of 36mm, anti-penetration experiments were conducted on the explosive reactive armors(ERAs)encapsulated by three different material layers with the same equivalent thickness, respectively...
By using the precision shaped charge warheads with the caliber of 36mm, anti-penetration experiments were conducted on the explosive reactive armors(ERAs)encapsulated by three different material layers with the same equivalent thickness, respectively...
2014, 34(1): 52-58.
doi: 10.11883/1001-1455(2014)01-0052-07
Abstract:
The finite element program LS-DYNA3D and the molecular dynamic method were applied to investigate the plastic zone formation, evolution process and the consequent dynamic failure behaviors under the dynamic tensile loading in a metal sheet with a pre...
The finite element program LS-DYNA3D and the molecular dynamic method were applied to investigate the plastic zone formation, evolution process and the consequent dynamic failure behaviors under the dynamic tensile loading in a metal sheet with a pre...
2014, 34(1): 59-66.
doi: 10.11883/1001-1455(2014)01-0059-08
Abstract:
The field tests were conducted to investigate the failure mechanism of the masonry infill wall under blast loading.The blast loads and the displacements of the wall under shock waves were measured.And the failure modes of the wall were obtained as we...
The field tests were conducted to investigate the failure mechanism of the masonry infill wall under blast loading.The blast loads and the displacements of the wall under shock waves were measured.And the failure modes of the wall were obtained as we...
2014, 34(1): 67-74.
doi: 10.11883/1001-1455(2014)01-0067-08
Abstract:
The thermal decomposition of each component in the composite explosive was described by the multi-step chemical kinetics model.A multi-component grid unit calculation method was put forward to calculate the thermal decomposition reaction processes of...
The thermal decomposition of each component in the composite explosive was described by the multi-step chemical kinetics model.A multi-component grid unit calculation method was put forward to calculate the thermal decomposition reaction processes of...
2014, 34(1): 75-79.
doi: 10.11883/1001-1455(2014)01-0075-05
Abstract:
By making some assumptions, an analytical model was presented to analyze the compression process of the cylindrical metal tube subjected to an inward sliding detonation.And the corresponding numerical simulations were carried out to verify the analyt...
By making some assumptions, an analytical model was presented to analyze the compression process of the cylindrical metal tube subjected to an inward sliding detonation.And the corresponding numerical simulations were carried out to verify the analyt...
2014, 34(1): 80-86.
doi: 10.11883/1001-1455(2014)01-0080-07
Abstract:
Based on the nonlinear explicit dynamic finite element program LS-DYNA and the multi-material Euler algorithm, the shock wave propagations were numerically simulated for the two explosion resources of the TNT dynamite and the acetylene-air gaseous mi...
Based on the nonlinear explicit dynamic finite element program LS-DYNA and the multi-material Euler algorithm, the shock wave propagations were numerically simulated for the two explosion resources of the TNT dynamite and the acetylene-air gaseous mi...
2014, 34(1): 87-92.
Abstract:
Based on the nonlinear wave theory, a mathematical model was proposed by applying the adaptive meshing technique in the ABAQUS code.And in the proposed model, the linear us-up Hugoniot equation of state was used for liquid.By using the proposed model...
Based on the nonlinear wave theory, a mathematical model was proposed by applying the adaptive meshing technique in the ABAQUS code.And in the proposed model, the linear us-up Hugoniot equation of state was used for liquid.By using the proposed model...
2014, 34(1): 93-98.
Abstract:
A loosing coupling strategy was adopted to simulate the propellant of the solid rocket motor.Pressure field was computed by solving the 2-D time-dependent Euler equations within an arbitrary Lagrangian-Eulerian(ALE)framework and the cell-centered fin...
A loosing coupling strategy was adopted to simulate the propellant of the solid rocket motor.Pressure field was computed by solving the 2-D time-dependent Euler equations within an arbitrary Lagrangian-Eulerian(ALE)framework and the cell-centered fin...
2014, 34(1): 99-105.
doi: 10.11883/1001-1455(2014)01-0099-07
Abstract:
The continuous detonation velocity test, the shock wave sensitivity test and the critical initiation pressure testwere developed, respectively, with reference to the GJB772A-97 card gap test.Based on the above tests, the detonation establishment proc...
The continuous detonation velocity test, the shock wave sensitivity test and the critical initiation pressure testwere developed, respectively, with reference to the GJB772A-97 card gap test.Based on the above tests, the detonation establishment proc...
2014, 34(1): 106-110.
doi: 10.11883/1001-1455(2014)01-0106-05
Abstract:
The blasting agentwas prepared by choosing Ce(NO3)3·6H2O as themajor ingredient to synthesize nano-CeO2 powder by the detonation method.The as-synthesized productswere characterized by X-ray diffraction(XRD)and transmission electron microscopy(TEM).T...
The blasting agentwas prepared by choosing Ce(NO3)3·6H2O as themajor ingredient to synthesize nano-CeO2 powder by the detonation method.The as-synthesized productswere characterized by X-ray diffraction(XRD)and transmission electron microscopy(TEM).T...
2014, 34(1): 111-114.
doi: 10.11883/1001-1455(2014)01-0111-04
Abstract:
The self-destructive device in clustermunitions was theoretically abstracted to establish a security failure model for investigating its security and reliability and evaluating the corresponding design.Based on informationism, twomodels were proposed...
The self-destructive device in clustermunitions was theoretically abstracted to establish a security failure model for investigating its security and reliability and evaluating the corresponding design.Based on informationism, twomodels were proposed...
2014, 34(1): 115-119.
doi: 10.11883/1001-1455(2014)01-0115-05
Abstract:
An electric probe measurement technique was proposed to measure the deformation undergone by the ektexines of the cylindrical steel shells subjected to the detonation of spherical explosive charges inside them.Numerical simulation was carried out to ...
An electric probe measurement technique was proposed to measure the deformation undergone by the ektexines of the cylindrical steel shells subjected to the detonation of spherical explosive charges inside them.Numerical simulation was carried out to ...
2014, 34(1): 120-124.
doi: 10.11883/1001-1455(2014)01-0120-05
Abstract:
For solving the high-overload problem existing during launching the scout-robot, the polyurethane foam was used as cushion material to reduce the overloads endured by the scout-robot.The energy-absorption capability of the polyurethane foam in the hi...
For solving the high-overload problem existing during launching the scout-robot, the polyurethane foam was used as cushion material to reduce the overloads endured by the scout-robot.The energy-absorption capability of the polyurethane foam in the hi...
2014, 34(1): 125-128.
doi: 10.11883/1001-1455(2014)01-0125-04
Abstract:
The experiments and the numerical simulations were carried out to investigate the characteristics in the initiation process of the TATB explosive by flyers.The initiation sequence was designed to initiate the high-density TATB explosive.The all-fiber...
The experiments and the numerical simulations were carried out to investigate the characteristics in the initiation process of the TATB explosive by flyers.The initiation sequence was designed to initiate the high-density TATB explosive.The all-fiber...
