2018 Vol. 38, No. 3
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2018, 38(3): 473-484.
doi: 10.11883/bzycj-2017-0230
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Abstract:
As one of the major damage modes of an aircraft fuel tank, the hydrodynamic ram may cause a catastrophic destroy to the fuel tank structure. In order to analyze the multi-fragment impact on the fuel tank under actual combat circumstance, a validated ...
As one of the major damage modes of an aircraft fuel tank, the hydrodynamic ram may cause a catastrophic destroy to the fuel tank structure. In order to analyze the multi-fragment impact on the fuel tank under actual combat circumstance, a validated ...
2018, 38(3): 485-490.
doi: 10.11883/bzycj-2017-0379
Abstract:
To understand the detonation reaction process of the TATB-based JB-9014 explosive, experimental measurements of the detonation wave profile of solid explosives using photon Doppler velocimetry (PDV) were performed. Planar detonations were produced by...
To understand the detonation reaction process of the TATB-based JB-9014 explosive, experimental measurements of the detonation wave profile of solid explosives using photon Doppler velocimetry (PDV) were performed. Planar detonations were produced by...
2018, 38(3): 491-500.
doi: 10.11883/bzycj-2017-0255
Abstract:
The dynamic propagation mechanics of prefabricated crack and its effect on joint were studied for the impact fracture process of L-shaped beam-column specimens with prefabricated cracks. The drop testing was carried out on the specimens with cracks a...
The dynamic propagation mechanics of prefabricated crack and its effect on joint were studied for the impact fracture process of L-shaped beam-column specimens with prefabricated cracks. The drop testing was carried out on the specimens with cracks a...
2018, 38(3): 501-508.
doi: 10.11883/bzycj-2016-0272
Abstract:
Effects of the three-point initiation control parameters on the formation of an explosively-formed projectile (EFP) with fins were studied, including initiation diameter and initiation synchronization error. The Mach wave parameters (pressure and Mac...
Effects of the three-point initiation control parameters on the formation of an explosively-formed projectile (EFP) with fins were studied, including initiation diameter and initiation synchronization error. The Mach wave parameters (pressure and Mac...
2018, 38(3): 509-516.
doi: 10.11883/bzycj-2017-0251
Abstract:
Due to its wide shock frequency and high amplitude, an explosion shock signal is commonly characterized by the phenomenon of signal zero drift in its measuring shock tests. In this study, we examined the origin of this zero drift phenomenon, compared...
Due to its wide shock frequency and high amplitude, an explosion shock signal is commonly characterized by the phenomenon of signal zero drift in its measuring shock tests. In this study, we examined the origin of this zero drift phenomenon, compared...
2018, 38(3): 517-524.
doi: 10.11883/bzycj-2017-0361
Abstract:
This paper presents a bidirectional-load split Hopkinson compression bar (BSHCB), namely, adding other symmetrical incident wave on the basis of traditional split Hpkinson pressure bar (SHPB), the two incident waves would load the specimen synchronou...
This paper presents a bidirectional-load split Hopkinson compression bar (BSHCB), namely, adding other symmetrical incident wave on the basis of traditional split Hpkinson pressure bar (SHPB), the two incident waves would load the specimen synchronou...
2018, 38(3): 525-533.
doi: 10.11883/bzycj-2016-0269
Abstract:
Early-stage deformation of water drops under Weber numbers ranging from 2 100 to 2 700 is investigated by experimental, numerical and theoretical methods, to reveal the influences of primary flow parameters on drop deformation as well as the mechanis...
Early-stage deformation of water drops under Weber numbers ranging from 2 100 to 2 700 is investigated by experimental, numerical and theoretical methods, to reveal the influences of primary flow parameters on drop deformation as well as the mechanis...
2018, 38(3): 534-540.
doi: 10.11883/bzycj-2016-0291
Abstract:
In the present work we investigated the cook-off and combustion explosion properties of 76 L fuel tanks with -10# diesel, fire-resistant diesel (FRD), fire-resistant-explosion-suppression diesel (FED) by performing experiments on the surface temperat...
In the present work we investigated the cook-off and combustion explosion properties of 76 L fuel tanks with -10# diesel, fire-resistant diesel (FRD), fire-resistant-explosion-suppression diesel (FED) by performing experiments on the surface temperat...
2018, 38(3): 541-548.
doi: 10.11883/bzycj-2016-0262
Abstract:
In order to simulate the thermal ignition process of gasoline-air in continuous hot wall, the chemical kinetic model, hydrodynamic model and radiation heat transfer model were coupled to establish a unified model of gasoline-airthermal ignition. Acco...
In order to simulate the thermal ignition process of gasoline-air in continuous hot wall, the chemical kinetic model, hydrodynamic model and radiation heat transfer model were coupled to establish a unified model of gasoline-airthermal ignition. Acco...
2018, 38(3): 549-554.
doi: 10.11883/bzycj-2016-0318
Abstract:
In this study we investigated the property of the shock wave propagating into the LiF window using the pole-curve method of two-dimensional unsteady flow theory and the hydrokinetical software LS-DYNA. The result derived from the pole-curve method sh...
In this study we investigated the property of the shock wave propagating into the LiF window using the pole-curve method of two-dimensional unsteady flow theory and the hydrokinetical software LS-DYNA. The result derived from the pole-curve method sh...
2018, 38(3): 555-562.
doi: 10.11883/bzycj-2016-0149
Abstract:
In this paper we studied the scattering of the transmission SH-wave form by elliptic elastic inclusions in a bi-material half-space using mainly the Green function, the complex function, the conformal mapping and the polar coordinate. Firstly, by int...
In this paper we studied the scattering of the transmission SH-wave form by elliptic elastic inclusions in a bi-material half-space using mainly the Green function, the complex function, the conformal mapping and the polar coordinate. Firstly, by int...
2018, 38(3): 563-571.
doi: 10.11883/bzycj-2016-0275
Abstract:
A numerical model of bedding bench slope was established by using the FLAC3D software. First, the dynamic response law of the slope under the blasting waves was analyzed. Then the stability of the slope was analyzed based on the displacement and the ...
A numerical model of bedding bench slope was established by using the FLAC3D software. First, the dynamic response law of the slope under the blasting waves was analyzed. Then the stability of the slope was analyzed based on the displacement and the ...
2018, 38(3): 572-578.
doi: 10.11883/bzycj-2016-0280
Abstract:
In order to achieve traceable dynamic pressure measurement in the liquid pulse pressure calibration, a dynamic pressure measurement method by laser interferometry based on Newton's second law is used. The pulse pressure is generated by a drop mass' i...
In order to achieve traceable dynamic pressure measurement in the liquid pulse pressure calibration, a dynamic pressure measurement method by laser interferometry based on Newton's second law is used. The pulse pressure is generated by a drop mass' i...
2018, 38(3): 579-585.
doi: 10.11883/bzycj-2016-0245
Abstract:
In this paper, we measured the blast overpressures of TNT, SEFAE and DEFAE using a pressure measuring system and pressure transducers installed in the free field and on the ground. The data obtained were analyzed and fitted with the blast overpressur...
In this paper, we measured the blast overpressures of TNT, SEFAE and DEFAE using a pressure measuring system and pressure transducers installed in the free field and on the ground. The data obtained were analyzed and fitted with the blast overpressur...
2018, 38(3): 586-595.
doi: 10.11883/bzycj-2016-0266
Abstract:
In order to understand the deformation behavior and microstructure evolution of a solution treated AM80 magnesium alloy under quasi-static and impact loadings, quasi-static and high-speed impact compression tests at room temperature were performed by...
In order to understand the deformation behavior and microstructure evolution of a solution treated AM80 magnesium alloy under quasi-static and impact loadings, quasi-static and high-speed impact compression tests at room temperature were performed by...
2018, 38(3): 596-602.
doi: 10.11883/bzycj-2016-0286
Abstract:
In this work we conducted a quasi-static tensile test, a high temperature tensile test and a dynamic tensile test on Q235B steel, the most widely used in steel structures in China, using a multi-functional material testing machine and a split Hopkins...
In this work we conducted a quasi-static tensile test, a high temperature tensile test and a dynamic tensile test on Q235B steel, the most widely used in steel structures in China, using a multi-functional material testing machine and a split Hopkins...
2018, 38(3): 603-615.
doi: 10.11883/bzycj-2016-0265
Abstract:
Based on the nonlinear finite element software LS-DYNA and smoothed particle hydrodynamics (SPH) method, a computational model of high-speed railway axles subjected to ballast impact was built. Influences of impact velocity, ballast shape and size, a...
Based on the nonlinear finite element software LS-DYNA and smoothed particle hydrodynamics (SPH) method, a computational model of high-speed railway axles subjected to ballast impact was built. Influences of impact velocity, ballast shape and size, a...
2018, 38(3): 616-621.
doi: 10.11883/bzycj-2016-0263
Abstract:
In order to further improve the damage efficiency of a multiple explosively-formed penetrator warhead, the multiple explosively-formed rod-like penetrator warheads were designed by composite charge and were researched by numerical simulation. Based o...
In order to further improve the damage efficiency of a multiple explosively-formed penetrator warhead, the multiple explosively-formed rod-like penetrator warheads were designed by composite charge and were researched by numerical simulation. Based o...
2018, 38(3): 622-631.
doi: 10.11883/bzycj-2016-0309
Abstract:
Numerical simulation was carried out by applying the fluid dynamics software Fluent to explore the influences of different ignition conditions, such as ignition locations (the distances from the left wall of the closed pipe are 100, 200, and 500 mm, ...
Numerical simulation was carried out by applying the fluid dynamics software Fluent to explore the influences of different ignition conditions, such as ignition locations (the distances from the left wall of the closed pipe are 100, 200, and 500 mm, ...
2018, 38(3): 632-638.
doi: 10.11883/bzycj-2016-0293
Abstract:
In the present study we carried out sympathetic detonation experiments, using RDX-8701 as donor and booster pipe and using JO-9C charge as acceptor explosive, to study the response of the fuse explosion device under shock wave. By observing the remai...
In the present study we carried out sympathetic detonation experiments, using RDX-8701 as donor and booster pipe and using JO-9C charge as acceptor explosive, to study the response of the fuse explosion device under shock wave. By observing the remai...
2018, 38(3): 639-646.
doi: 10.11883/bzycj-2016-0295
Abstract:
Firstly, the distribution of load and displacement of the free surface of the arch were obtained by using the geometrical relation and the empirical formula, and the related parameters were discussed. Secondly, the modified soil-structure interaction...
Firstly, the distribution of load and displacement of the free surface of the arch were obtained by using the geometrical relation and the empirical formula, and the related parameters were discussed. Secondly, the modified soil-structure interaction...
2018, 38(3): 647-653.
doi: 10.11883/bzycj-2016-0289
Abstract:
In this study we performed a series of penetration tests on specimens of carbon fiber reinforced plastics (CFRPs) using a one-stage gas gun at impact angles of 0°, 30° and 45° at speeds ranging from 70 to 280 m/s to investigate their ballistic resist...
In this study we performed a series of penetration tests on specimens of carbon fiber reinforced plastics (CFRPs) using a one-stage gas gun at impact angles of 0°, 30° and 45° at speeds ranging from 70 to 280 m/s to investigate their ballistic resist...
2018, 38(3): 654-658.
doi: 10.11883/bzycj-2016-0308
Abstract:
In this paper we proposed a method for modifying classical similarity theories to meet the guidance need in the impact experiment of strain rate sensitive materials. This method, based on recent dynamic similarity theories, took into account the effe...
In this paper we proposed a method for modifying classical similarity theories to meet the guidance need in the impact experiment of strain rate sensitive materials. This method, based on recent dynamic similarity theories, took into account the effe...
2018, 38(3): 659-664.
doi: 10.11883/bzycj-2016-0279
Abstract:
This paper presents a study on the multi-spall of ductile metal induced by triangular impulse, using the simple cut-off pressure model and Tuler-Batcher's accumulative damage model to describe the spall. Numerical results show that the spall thicknes...
This paper presents a study on the multi-spall of ductile metal induced by triangular impulse, using the simple cut-off pressure model and Tuler-Batcher's accumulative damage model to describe the spall. Numerical results show that the spall thicknes...
2018, 38(3): 665-670.
doi: 10.11883/bzycj-2016-0310
Abstract:
The intact and pre-existing flaw granite specimens were tested by using the split Hopkinson pressure bar device with 50 mm rod diameter, and the whole process of spalling fracture was recorded by a high-speed video camera. Based on the theoretical an...
The intact and pre-existing flaw granite specimens were tested by using the split Hopkinson pressure bar device with 50 mm rod diameter, and the whole process of spalling fracture was recorded by a high-speed video camera. Based on the theoretical an...
2018, 38(3): 671-676.
doi: 10.11883/bzycj-2016-0300
Abstract:
In this study, based on ANSYS/LS-DYNA, we described the tempered glass using the Lagrange method, reasonably simplified the blast wave load by simulating the failure of the tempered glass using the erosion algorithm, with the maximum elongation line ...
In this study, based on ANSYS/LS-DYNA, we described the tempered glass using the Lagrange method, reasonably simplified the blast wave load by simulating the failure of the tempered glass using the erosion algorithm, with the maximum elongation line ...
2018, 38(3): 677-682.
doi: 10.11883/bzycj-2016-0282
Abstract:
In the measurement of a projectile's acceleration history using an acceleration transducer, the results achieved contain the acceleration resulting from the hindrance of a target that decelerates the projectile and the acceleration resulting from the...
In the measurement of a projectile's acceleration history using an acceleration transducer, the results achieved contain the acceleration resulting from the hindrance of a target that decelerates the projectile and the acceleration resulting from the...
2018, 38(3): 683-687.
doi: 10.11883/bzycj-2016-0302
Abstract:
In the present study, based on the physical process of combined pulse fracturing, we proposed a model for the coupling of the whole process of multi-pulse conflagration fracturing using different combinations of the multi-level pulse propellant confl...
In the present study, based on the physical process of combined pulse fracturing, we proposed a model for the coupling of the whole process of multi-pulse conflagration fracturing using different combinations of the multi-level pulse propellant confl...
2018, 38(3): 688-695.
doi: 10.11883/bzycj-2016-0133
Abstract:
In this paper, we studied the program implosion process and the influence of the magnetic field under a high-energy density state on charged particles and the mechanism of the compression process, using the MHD equations and finite difference method....
In this paper, we studied the program implosion process and the influence of the magnetic field under a high-energy density state on charged particles and the mechanism of the compression process, using the MHD equations and finite difference method....
2018, 38(3): 696-706.
doi: 10.11883/bzycj-2016-0303
Abstract:
In this paper, various collision protection methods were presented to ameliorate naval ships' collision protective capability. Conventional collision protection methods may result in the increase of the ship's weight and reduction of its functional p...
In this paper, various collision protection methods were presented to ameliorate naval ships' collision protective capability. Conventional collision protection methods may result in the increase of the ship's weight and reduction of its functional p...
