2021 Vol. 41, No. 6
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2021, 41(6): 062201.
doi: 10.11883/bzycj-2020-0381
Abstract:
Decoupled charge blasting can effectively reduce the peak pressure of hole wall and improve the blasting effect. Aiming at the issues associated with the explosive energy transferred into rock mass with different coupling medium, the deformation and ...
Decoupled charge blasting can effectively reduce the peak pressure of hole wall and improve the blasting effect. Aiming at the issues associated with the explosive energy transferred into rock mass with different coupling medium, the deformation and ...
2021, 41(6): 062301.
doi: 10.11883/bzycj-2020-0157
Abstract:
In order to reveal the mechanisms of gun breech-blow phenomenon caused by the fracture of propellant charge, it is urgent to carry out the simulation research on the compression and fracture of propellant charge under the corresponding charge structu...
In order to reveal the mechanisms of gun breech-blow phenomenon caused by the fracture of propellant charge, it is urgent to carry out the simulation research on the compression and fracture of propellant charge under the corresponding charge structu...
2021, 41(6): 062901.
doi: 10.11883/bzycj-2020-0193
Abstract:
The blast loading from an explosion in a confined space is quite different from that in an open environment. The detonation products of TNT can be fully mixed with the surrounding air, and release additional energy through combustion effect, resultin...
The blast loading from an explosion in a confined space is quite different from that in an open environment. The detonation products of TNT can be fully mixed with the surrounding air, and release additional energy through combustion effect, resultin...
2021, 41(6): 062902.
doi: 10.11883/bzycj-2020-0200
Abstract:
In order to explore the flow characteristics and propagation law of combustion gas from the central ignition tube in the initial stage of internal ballistic, a visual experimental platform was designed to carry out ignition experiments with the subst...
In order to explore the flow characteristics and propagation law of combustion gas from the central ignition tube in the initial stage of internal ballistic, a visual experimental platform was designed to carry out ignition experiments with the subst...
2021, 41(6): 063101.
doi: 10.11883/bzycj-2020-0269
Abstract:
The elastic dynamic response of an infinite-length cylindrical shell (equivalent plane strain ring) was analyzed by using the single degree of freedom (SDOF) model under blast loading with triangular pulse load and quasi-static pressure load. The ana...
The elastic dynamic response of an infinite-length cylindrical shell (equivalent plane strain ring) was analyzed by using the single degree of freedom (SDOF) model under blast loading with triangular pulse load and quasi-static pressure load. The ana...
2021, 41(6): 063102.
doi: 10.11883/bzycj-2020-0121
Abstract:
Under impact loads, the crack resistance of reinforcement in concrete is the focus of impact dynamics research. In this study, the three-point bending tests of lightly reinforce concrete beams with notch were conducted with a drop hammer testing mach...
Under impact loads, the crack resistance of reinforcement in concrete is the focus of impact dynamics research. In this study, the three-point bending tests of lightly reinforce concrete beams with notch were conducted with a drop hammer testing mach...
2021, 41(6): 063301.
doi: 10.11883/bzycj-2020-0165
Abstract:
Reactive powder concrete (RPC) has ultra-high strength and excellent crack resistance. To study the damage law of the RPC subjected to multiple impact loads, a 25 mm caliber smoothbore gun was used to penetrate the RPC cylindrical target with the dia...
Reactive powder concrete (RPC) has ultra-high strength and excellent crack resistance. To study the damage law of the RPC subjected to multiple impact loads, a 25 mm caliber smoothbore gun was used to penetrate the RPC cylindrical target with the dia...
2021, 41(6): 063302.
doi: 10.11883/bzycj-2020-0309
Abstract:
It is one of the future development directions to use small tungsten alloy spherical fragments in individual warhead. In order to investigation the penetration performance of small tungsten spheres against human simulation target covered with body ar...
It is one of the future development directions to use small tungsten alloy spherical fragments in individual warhead. In order to investigation the penetration performance of small tungsten spheres against human simulation target covered with body ar...
2021, 41(6): 064101.
doi: 10.11883/bzycj-2020-0138
Abstract:
Based on the Zwick HTM-5020 hydraulic servo high-speed loading system, a planar biaxial tensile test technique was developed. The biaxial tensile loading device is mainly composed of a cross-shaped cone hammer head, a loading force arm, a cross guide...
Based on the Zwick HTM-5020 hydraulic servo high-speed loading system, a planar biaxial tensile test technique was developed. The biaxial tensile loading device is mainly composed of a cross-shaped cone hammer head, a loading force arm, a cross guide...
2021, 41(6): 064201.
doi: 10.11883/bzycj-2020-0156
Abstract:
It is very important to simulate and analyze the evolution of the electromagnetic field on the armature/rail in the electromagnetic emission process for optimizing and improving the design of the rail and armature, which is the main basis for control...
It is very important to simulate and analyze the evolution of the electromagnetic field on the armature/rail in the electromagnetic emission process for optimizing and improving the design of the rail and armature, which is the main basis for control...
2021, 41(6): 064901.
doi: 10.11883/bzcyj-2020-0185
Abstract:
The peak pressure on a borehole wall is an important parameter for the analysis of rock blasting rupture and the non-fluid solid coupling explosion impact dynamic response. Based on the relevant research of calculation methods for the peak pressure o...
The peak pressure on a borehole wall is an important parameter for the analysis of rock blasting rupture and the non-fluid solid coupling explosion impact dynamic response. Based on the relevant research of calculation methods for the peak pressure o...
2021, 41(6): 064902.
doi: 10.11883/bzycj-2020-0194
Abstract:
How to accurately define “close-in explosion” has always been a hotspot in the field of protection engineering research. In this paper, based on the fully validated 2D axisymmetric fine finite element model, the characteristics and laws of the propag...
How to accurately define “close-in explosion” has always been a hotspot in the field of protection engineering research. In this paper, based on the fully validated 2D axisymmetric fine finite element model, the characteristics and laws of the propag...
2021, 41(6): 065101.
doi: 10.11883/bzycj-2020-0168
Abstract:
In this work, in order to reduce hull structural damage caused by ice impact, a new type of square groove longitudinal anti-ice structure is used in the shoulder structure of a hull in ice belt. Using a falling weight impact test system, the structur...
In this work, in order to reduce hull structural damage caused by ice impact, a new type of square groove longitudinal anti-ice structure is used in the shoulder structure of a hull in ice belt. Using a falling weight impact test system, the structur...
2021, 41(6): 065102.
doi: 10.11883/bzycj-2020-0170
Abstract:
In order to study the dynamic characteristics of electric transmission lines undergone blasting de-icing and the corresponding de-icing effects, model experiments on the isolated transmission lines with a span of 50 m were carried out. The artificial...
In order to study the dynamic characteristics of electric transmission lines undergone blasting de-icing and the corresponding de-icing effects, model experiments on the isolated transmission lines with a span of 50 m were carried out. The artificial...
