2019 Vol. 39, No. 6
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2019, 39(6): 062101.
doi: 10.11883/bzycj-2018-0163
Abstract:
A two-dimensional axisymmetric model about slow cook-off of solid rocket motor was established, where the process of slow cook-off for ammonium perchlorate/hydroxyl-terminated polybutadiene (AP/HTPB) propellant described by a two-step global chemical...
A two-dimensional axisymmetric model about slow cook-off of solid rocket motor was established, where the process of slow cook-off for ammonium perchlorate/hydroxyl-terminated polybutadiene (AP/HTPB) propellant described by a two-step global chemical...
2019, 39(6): 062102.
doi: 10.11883/bzycj-2018-0223
Abstract:
The free-flow simulation range of the detonation driven shock tunnel is closely related to the detonation limit of the driving gas. The wider the detonation limit, the larger the simulation range. The driving gas is generally detonated through the ig...
The free-flow simulation range of the detonation driven shock tunnel is closely related to the detonation limit of the driving gas. The wider the detonation limit, the larger the simulation range. The driving gas is generally detonated through the ig...
2019, 39(6): 062201.
doi: 10.11883/bzycj-2018-0118
Abstract:
Bubble collapse near a wall will generate strong micro-jet in a liquid environment under ultrasonic field. To explore the fluid-solid coupling effect of micro-jet impinging on a wall, hydrodynamics and impact dynamics were employed, and the J-C rate ...
Bubble collapse near a wall will generate strong micro-jet in a liquid environment under ultrasonic field. To explore the fluid-solid coupling effect of micro-jet impinging on a wall, hydrodynamics and impact dynamics were employed, and the J-C rate ...
2019, 39(6): 063101.
doi: 10.11883/bzycj-2018-0114
Abstract:
To study the mechanism of failure behavior and energy release mechanism of Zr-based amorphous alloys, Instron machine, split hopkinson bar, high-speed photography, DSC and SEM are used to achieve the stress-strain curves at low strain rate, stress-st...
To study the mechanism of failure behavior and energy release mechanism of Zr-based amorphous alloys, Instron machine, split hopkinson bar, high-speed photography, DSC and SEM are used to achieve the stress-strain curves at low strain rate, stress-st...
2019, 39(6): 063102.
doi: 10.11883/bzycj-2018-0142
Abstract:
In this paper, we performed SHPB experiments on concrete-like materials with different strengths (C20, C45, C70) and different steel fiber contents (0%, 0.75%, 1.50%, 4.50%) and analyzed the data drawn. The results showed that the constant strain rat...
In this paper, we performed SHPB experiments on concrete-like materials with different strengths (C20, C45, C70) and different steel fiber contents (0%, 0.75%, 1.50%, 4.50%) and analyzed the data drawn. The results showed that the constant strain rat...
2019, 39(6): 063103.
doi: 10.11883/bzycj-2018-0198
Abstract:
In this work we investigated the deformation/failure modes and shock resistance performance of sandwich panels with layered-gradient aluminum foam cores under air-blast loading by experiment using a ballistic pendulum device, the deflection-time hist...
In this work we investigated the deformation/failure modes and shock resistance performance of sandwich panels with layered-gradient aluminum foam cores under air-blast loading by experiment using a ballistic pendulum device, the deflection-time hist...
2019, 39(6): 063301.
doi: 10.11883/bzycj-2018-0094
Abstract:
At the initial stage of water entry, the water surrounding of the rigid sphere will show strong nonlinear characteristics. However, there are no exact three-dimensional effects in impact problem within the Wagner theory. Based on the non-viscous inco...
At the initial stage of water entry, the water surrounding of the rigid sphere will show strong nonlinear characteristics. However, there are no exact three-dimensional effects in impact problem within the Wagner theory. Based on the non-viscous inco...
2019, 39(6): 063302.
doi: 10.11883/bzycj-2018-0411
Abstract:
In the present study we developed an analytical model to describe the attitude deflection of the rigid projectile obliquely penetrating into concrete targets. To improve on the previous models, we took the effect of the inertia moment of the projecti...
In the present study we developed an analytical model to describe the attitude deflection of the rigid projectile obliquely penetrating into concrete targets. To improve on the previous models, we took the effect of the inertia moment of the projecti...
2019, 39(6): 064101.
doi: 10.11883/bzycj-2018-0091
Abstract:
A novel fiber optic pressure sensing technology is presented to obtain the peak reflected pressure of shock waves. This technology is based on the Newton's second law and the pressure relates directly to the acceleration of a thin diaphragm. The acce...
A novel fiber optic pressure sensing technology is presented to obtain the peak reflected pressure of shock waves. This technology is based on the Newton's second law and the pressure relates directly to the acceleration of a thin diaphragm. The acce...
2019, 39(6): 064102.
doi: 10.11883/bzycj-2018-0513
Abstract:
To investigate the effect of strain rate on the bond-slip behaviors of smooth steel bars in concrete, we conducted plain steel bar pullout tests from quasi-static to impact loading using a high-speed tensile test machine and obtained the whole bond-s...
To investigate the effect of strain rate on the bond-slip behaviors of smooth steel bars in concrete, we conducted plain steel bar pullout tests from quasi-static to impact loading using a high-speed tensile test machine and obtained the whole bond-s...
2019, 39(6): 064201.
doi: 10.11883/bzycj-2018-0167
Abstract:
Upon impinging on a rigid surface, the blast wave would go through regular and irregular reflection successively. A theoretical model is developed for the determination of the flow field behind the reflected wave, which is based on the method of imag...
Upon impinging on a rigid surface, the blast wave would go through regular and irregular reflection successively. A theoretical model is developed for the determination of the flow field behind the reflected wave, which is based on the method of imag...
2019, 39(6): 064202.
doi: 10.11883/bzycj-2018-0171
Abstract:
The peak pressure on the borehole wall is an important parameter for non-fluid solid coupling dynamic analysis of blasting. Aiming at the method for calculating the borehole peak pressure of the contour blasting, the interaction between explosion sho...
The peak pressure on the borehole wall is an important parameter for non-fluid solid coupling dynamic analysis of blasting. Aiming at the method for calculating the borehole peak pressure of the contour blasting, the interaction between explosion sho...
2019, 39(6): 065101.
doi: 10.11883/bzycj-2018-0090
Abstract:
Through the experimental study on the damage effect of underwater explosion on caisson gravity wharf model under different explosion distances, data collection and analysis for underwater loads and model damage are conducted, a study on damage factor...
Through the experimental study on the damage effect of underwater explosion on caisson gravity wharf model under different explosion distances, data collection and analysis for underwater loads and model damage are conducted, a study on damage factor...
2019, 39(6): 065102.
doi: 10.11883/bzycj-2018-0060
Abstract:
A sandwich defensive structure made up of the star-shaped auxetic cellular material is designed in this paper. FE models are developed to simulate the process of projectile penetration and underwater explosion. Different structure parameters, such as...
A sandwich defensive structure made up of the star-shaped auxetic cellular material is designed in this paper. FE models are developed to simulate the process of projectile penetration and underwater explosion. Different structure parameters, such as...
2019, 39(6): 065201.
doi: 10.11883/bzycj-2018-0089
Abstract:
In this study we investigated the mechanism of water pressure blasting in the thin-walled bridge pier, taking the water pressure directional blasting demolition project of Jamuna bridge as the research object and using the explicit dynamics analysis ...
In this study we investigated the mechanism of water pressure blasting in the thin-walled bridge pier, taking the water pressure directional blasting demolition project of Jamuna bridge as the research object and using the explicit dynamics analysis ...
2019, 39(6): 065401.
doi: 10.11883/bzycj-2018-0131
Abstract:
In this study we investigated the effect of inert gas addition on the characteristics of the syngas explosion using 20 L spherical explosive device. Effects of different volume fraction of inert gas (CO2/N2) on the explosion parameters including the ...
In this study we investigated the effect of inert gas addition on the characteristics of the syngas explosion using 20 L spherical explosive device. Effects of different volume fraction of inert gas (CO2/N2) on the explosion parameters including the ...
2019, 39(6): 065202.
doi: 10.11883/bzycj-2018-0137
Abstract:
In this study, based on the high stress and frequent blast disturbance in the process of surrounding rock excavation in the deep roadway of Dongguashan Copper Mine, we investigated the dynamic properties of the high-energy rock mass disturbed by freq...
In this study, based on the high stress and frequent blast disturbance in the process of surrounding rock excavation in the deep roadway of Dongguashan Copper Mine, we investigated the dynamic properties of the high-energy rock mass disturbed by freq...
