2019 Vol. 39, No. 10
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2019, 39(10): 102201.
doi: 10.11883/bzycj-2018-0303
Abstract:
In this paper, we investigated the ground vibration effect caused by high pressure gas pipeline explosion using field experiment and numerical simulation. We found out about the magnitude range and attenuation mechanism of the ground vibration of hig...
In this paper, we investigated the ground vibration effect caused by high pressure gas pipeline explosion using field experiment and numerical simulation. We found out about the magnitude range and attenuation mechanism of the ground vibration of hig...
2019, 39(10): 102202.
doi: 10.11883/bzycj-2018-0327
Abstract:
In order to study explosion pressure load distribution characteristics in closed environment, a TNT charge internal explosion experiment of cylinder apparatus with an aspect ratio of 2∶1 was carried out. Pressure load data of the cylinder wall and co...
In order to study explosion pressure load distribution characteristics in closed environment, a TNT charge internal explosion experiment of cylinder apparatus with an aspect ratio of 2∶1 was carried out. Pressure load data of the cylinder wall and co...
2019, 39(10): 103101.
doi: 10.11883/bzycj-2018-0295
Abstract:
In this paper we investigated the dynamic response of thin-wall circular tubes under lateral blast loading based on experimental research, theoretical analysis and finite element simulation. We studied the dynamic responses of the tubes under explosi...
In this paper we investigated the dynamic response of thin-wall circular tubes under lateral blast loading based on experimental research, theoretical analysis and finite element simulation. We studied the dynamic responses of the tubes under explosi...
2019, 39(10): 103102.
doi: 10.11883/bzycj-2018-0308
Abstract:
In this paper, the digital image correlation method is used to test the tip position of the brittle material in the explosion loading strip, the stress intensity factor calculation considering the inertia effect and the crack propagation law. Firstly...
In this paper, the digital image correlation method is used to test the tip position of the brittle material in the explosion loading strip, the stress intensity factor calculation considering the inertia effect and the crack propagation law. Firstly...
2019, 39(10): 103103.
doi: 10.11883/bzycj-2018-0311
Abstract:
The drop process of an energy-absorbing container was simulated by air gun impact test, and the forward and 30° oblique impact experiments of the scale model were carried out. The numerical analysis for the model experiments was conducted to obtain t...
The drop process of an energy-absorbing container was simulated by air gun impact test, and the forward and 30° oblique impact experiments of the scale model were carried out. The numerical analysis for the model experiments was conducted to obtain t...
2019, 39(10): 103201.
doi: 10.11883/bzycj-2018-0279
Abstract:
In order to investigate the influence of the muzzle device on the characteristics of muzzle aeroacoustic noise, simulation analysis and experimental research were performed on the jet noise induced by the complex flows discharging from a small calibe...
In order to investigate the influence of the muzzle device on the characteristics of muzzle aeroacoustic noise, simulation analysis and experimental research were performed on the jet noise induced by the complex flows discharging from a small calibe...
2019, 39(10): 103202.
doi: 10.11883/bzycj-2018-0225
Abstract:
To explore the unloading of blasting excavation in highly-stressed rock masses for hydropower stations, an axial loading and unloading test platform was independently developed. The dynamic strain and strain rate data of rock bars during the blasting...
To explore the unloading of blasting excavation in highly-stressed rock masses for hydropower stations, an axial loading and unloading test platform was independently developed. The dynamic strain and strain rate data of rock bars during the blasting...
Energy dissipation analysis of elliptical truncated oval rigid projectilepenetrating stiffened plate
2019, 39(10): 103203.
doi: 10.11883/bzycj-2018-0350
Abstract:
In order to obtain the residual velocity of elliptical section truncated oval rigid projectile penetrating stiffened plate, according to the failure characteristics of elliptical section projectile penetrating target plate, it is considered that the ...
In order to obtain the residual velocity of elliptical section truncated oval rigid projectile penetrating stiffened plate, according to the failure characteristics of elliptical section projectile penetrating target plate, it is considered that the ...
2019, 39(10): 103301.
doi: 10.11883/bzycj-2018-0275
Abstract:
In order to obtain the damage data of reinforced concrete targets subjected to high-velocity impact of kinetic-energy projectiles, based on the large-caliber launch platform, penetration experiments were carried out by applying 100-mm-caliber oval pr...
In order to obtain the damage data of reinforced concrete targets subjected to high-velocity impact of kinetic-energy projectiles, based on the large-caliber launch platform, penetration experiments were carried out by applying 100-mm-caliber oval pr...
2019, 39(10): 103901.
doi: 10.11883/bzycj-2018-0214
Abstract:
Based on the acoustic coupling method in ABAQUS software, this paper adopts the equipment and platform integration analysis method on the study of medium floating shock platform. Discusses the impact of platform shape structure on platform shock envi...
Based on the acoustic coupling method in ABAQUS software, this paper adopts the equipment and platform integration analysis method on the study of medium floating shock platform. Discusses the impact of platform shape structure on platform shock envi...
2019, 39(10): 104101.
doi: 10.11883/bzycj-2018-0301
Abstract:
Compared to the split Hopkinson pressure bar (SHPB) technique, the direct impact Hopkinson pressure bar (DIHPB) method can usually obtain a higher strain rate in dynamic tests of material properties. Based on the DIHPB system, a new double shear spec...
Compared to the split Hopkinson pressure bar (SHPB) technique, the direct impact Hopkinson pressure bar (DIHPB) method can usually obtain a higher strain rate in dynamic tests of material properties. Based on the DIHPB system, a new double shear spec...
2019, 39(10): 104102.
doi: 10.11883/bzycj-2019-0233
Abstract:
In order to improve the measurement accuracy of shock wave overpressure peak, most scholars focus on the study of high-frequency characteristics of the system for improving the accuracy of peak value measurement by broadening the bandwidth. The other...
In order to improve the measurement accuracy of shock wave overpressure peak, most scholars focus on the study of high-frequency characteristics of the system for improving the accuracy of peak value measurement by broadening the bandwidth. The other...
2019, 39(10): 104103.
doi: 10.11883/bzycj-2018-0371
Abstract:
Compared with the fixed connection methods such as thread and adhesive commonly used in the split Hopkinson tensile bar experiments, the hook-sheet specimen has the advantages of simple connection form and quick assembly process. Aiming at measuremen...
Compared with the fixed connection methods such as thread and adhesive commonly used in the split Hopkinson tensile bar experiments, the hook-sheet specimen has the advantages of simple connection form and quick assembly process. Aiming at measuremen...
2019, 39(10): 104104.
doi: 10.11883/bzycj-2018-0335
Abstract:
To discuss the radial inertia effect of UHPC impact test using SHPB, the numerical simulation and analysis using the software LS-DYNA are conducted by varying the specimen diameter, length-diameter ratio and constant strain rate loading. The dynamic ...
To discuss the radial inertia effect of UHPC impact test using SHPB, the numerical simulation and analysis using the software LS-DYNA are conducted by varying the specimen diameter, length-diameter ratio and constant strain rate loading. The dynamic ...
Simulation of hypervelocity impact by the material point method coupled with a new equation of state
2019, 39(10): 104201.
doi: 10.11883/bzycj-2018-0261
Abstract:
In the numerical simulation of hypervelocity impact problems, the equation of state (EOS) is used to calculate the pressure of the material. In order to simulate the hypervelocity impact problems more accurately, a new EOS which has a clear expressio...
In the numerical simulation of hypervelocity impact problems, the equation of state (EOS) is used to calculate the pressure of the material. In order to simulate the hypervelocity impact problems more accurately, a new EOS which has a clear expressio...
2019, 39(10): 105401.
doi: 10.11883/bzycj-2018-0297
Abstract:
In this paper we established a horizontal pipeline geometric model based on the horizontal pipeline coal dust explosion experimental device to study the characteristics of impinging airflow and CO gas generation during lignite explosion, and construc...
In this paper we established a horizontal pipeline geometric model based on the horizontal pipeline coal dust explosion experimental device to study the characteristics of impinging airflow and CO gas generation during lignite explosion, and construc...
2019, 39(10): 105402.
doi: 10.11883/bzycj-2019-0006
Abstract:
In this work, experimenting on a self-built vertically transparent duct, we investigated the influence of the blocking ratio (φ) for duct-end venting on the explosive characteristics of aluminum dust explosion through analysis of its such characteris...
In this work, experimenting on a self-built vertically transparent duct, we investigated the influence of the blocking ratio (φ) for duct-end venting on the explosive characteristics of aluminum dust explosion through analysis of its such characteris...
