2021 Vol. 41, No. 11
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2021, 41(11): 111101.
doi: 10.11883/bzycj-2020-0293
Abstract:
High-entropy alloys (HEAs), due to their unique alloy-design concepts and excellent comprehensive properties, are becoming a research hotspot nowadays. However, previous reports were scarcely focused on the dynamic mechanical loading of the HEAs, tha...
High-entropy alloys (HEAs), due to their unique alloy-design concepts and excellent comprehensive properties, are becoming a research hotspot nowadays. However, previous reports were scarcely focused on the dynamic mechanical loading of the HEAs, tha...
2021, 41(11): 112101.
doi: 10.11883/bzycj-2021-0030
Abstract:
In order to investigate the development of flame spreading in the charge bed of a central ignition tube, a visualized ignition experiment platform was designed, and experiments were carried out with different ignition charge masses and charge structu...
In order to investigate the development of flame spreading in the charge bed of a central ignition tube, a visualized ignition experiment platform was designed, and experiments were carried out with different ignition charge masses and charge structu...
2021, 41(11): 112102.
doi: 10.11883/bzycj-2020-0465
Abstract:
To understand the effect of equivalent ratio on the working characteristics of gasoline fuel two-phase rotating detonation engine, a gas-liquid two-phase rotating detonation experimental study with high total temperature air as oxidant has been carri...
To understand the effect of equivalent ratio on the working characteristics of gasoline fuel two-phase rotating detonation engine, a gas-liquid two-phase rotating detonation experimental study with high total temperature air as oxidant has been carri...
2021, 41(11): 112201.
doi: 10.11883/bzycj-2020-0431
Abstract:
For the dynamic response and the instability of the composite cylindrical shell under explosive loading, many factors may affect the stability behavior of the cylindrical shell. In this paper, three main aspects, i. e. the possible defects in the man...
For the dynamic response and the instability of the composite cylindrical shell under explosive loading, many factors may affect the stability behavior of the cylindrical shell. In this paper, three main aspects, i. e. the possible defects in the man...
2021, 41(11): 113101.
doi: 10.11883/bzycj-2021-0088
Abstract:
The grain size effect on the dynamic behavior of sandstone was investigated through the compression tests on coarse-grained (CG), medium-grained (MG) and fine-grained (FG) sandstones by split Hopkinson pressure bar (SHPB) tests under the strain rates...
The grain size effect on the dynamic behavior of sandstone was investigated through the compression tests on coarse-grained (CG), medium-grained (MG) and fine-grained (FG) sandstones by split Hopkinson pressure bar (SHPB) tests under the strain rates...
2021, 41(11): 113102.
doi: 10.11883/bzycj-2020-0444
Abstract:
Fire and explosion often occur together that seriously threatens the safety of engineering structures. In order to investigate the explosion resistance of concrete-filled steel tubular (CFST) columns at elevated temperatures, the finite element (FE) ...
Fire and explosion often occur together that seriously threatens the safety of engineering structures. In order to investigate the explosion resistance of concrete-filled steel tubular (CFST) columns at elevated temperatures, the finite element (FE) ...
2021, 41(11): 113103.
doi: 10.11883/bzycj-2020-0374
Abstract:
For the impact similarity problem of the scaled model and the prototype usually have different materials with elastic and plastic properties, the differences of material properties and the coexistence of elastoplastic in different deformation stages ...
For the impact similarity problem of the scaled model and the prototype usually have different materials with elastic and plastic properties, the differences of material properties and the coexistence of elastoplastic in different deformation stages ...
2021, 41(11): 113301.
doi: 10.11883/bzycj-2021-0134
Abstract:
In order to investigate the ceramic fragmentation behavior of light ceramic composite armors in the process of anti-penetration, ballistic impact tests of ceramic/metal composite armors with different back cover and ceramic thicknesses using a penetr...
In order to investigate the ceramic fragmentation behavior of light ceramic composite armors in the process of anti-penetration, ballistic impact tests of ceramic/metal composite armors with different back cover and ceramic thicknesses using a penetr...
2021, 41(11): 113302.
doi: 10.11883/bzycj-2020-0463
Abstract:
In order to study the high-speed penetration effect of a structural projectile on a reinforced concrete target, tests of structural projectiles with high velocity penetrating into reinforced concrete target were carried out by using a 35mm-caliber ba...
In order to study the high-speed penetration effect of a structural projectile on a reinforced concrete target, tests of structural projectiles with high velocity penetrating into reinforced concrete target were carried out by using a 35mm-caliber ba...
2021, 41(11): 113303.
doi: 10.11883/bzycj-2020-0276
Abstract:
The slamming load and structural response of flexible wedges were investigated by both analytical methods and numerical simulations based on the ALE (arbitrary Lagrangian-Eulerian) coupled method. The cases with various boundary conditions, impact ve...
The slamming load and structural response of flexible wedges were investigated by both analytical methods and numerical simulations based on the ALE (arbitrary Lagrangian-Eulerian) coupled method. The cases with various boundary conditions, impact ve...
2021, 41(11): 114101.
doi: 10.11883/bzycj-2020-0427
Abstract:
In order to achieve bidirectional high strain rate dynamic tension of materials or structures, based on the elastic stress wave propagation theory in bending bars and the principle of the Hopkinson bar, a symmetrical herringbone bending bar was desig...
In order to achieve bidirectional high strain rate dynamic tension of materials or structures, based on the elastic stress wave propagation theory in bending bars and the principle of the Hopkinson bar, a symmetrical herringbone bending bar was desig...
2021, 41(11): 114102.
doi: 10.11883/bzycj-2020-0449
Abstract:
According to the requirements on the soft recovery of fragments of expanding cylindrical metal shells under explosion loading, this paper presents a recovery device combining low density polyurethane foam and water medium through theoretical analysis...
According to the requirements on the soft recovery of fragments of expanding cylindrical metal shells under explosion loading, this paper presents a recovery device combining low density polyurethane foam and water medium through theoretical analysis...
2021, 41(11): 114201.
doi: 10.11883/bzycj-2020-0366
Abstract:
In this paper, in order to improve the resolution of capturing discontinuities, we introduce the pseudo arc-length parameter to make the mesh move to the discontinuities adaptively. By combining the high-precision WENO scheme with the pseudo arc-leng...
In this paper, in order to improve the resolution of capturing discontinuities, we introduce the pseudo arc-length parameter to make the mesh move to the discontinuities adaptively. By combining the high-precision WENO scheme with the pseudo arc-leng...
2021, 41(11): 115201.
doi: 10.11883/bzycj-2020-0378
Abstract:
In order to study the damage effect of blasting load on the surrounding rock of shallow-buried small spacing twin tunnels, the shallow-buried tunneling section of the south extension project of Shunhe Expressway is taken as the engineering background...
In order to study the damage effect of blasting load on the surrounding rock of shallow-buried small spacing twin tunnels, the shallow-buried tunneling section of the south extension project of Shunhe Expressway is taken as the engineering background...
2021, 41(11): 115401.
doi: 10.11883/bzycj-2021-0078
Abstract:
The branch structure of the tunnel significantly affects the overpressure characteristics of combustible gas explosions in confined space. However, most of previous studies involved explosions in branch vessels were limited to single branch structure...
The branch structure of the tunnel significantly affects the overpressure characteristics of combustible gas explosions in confined space. However, most of previous studies involved explosions in branch vessels were limited to single branch structure...
