2022 Vol. 42, No. 1
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2022, 42(1): 012101.
doi: 10.11883/bzycj-2021-0191
Abstract:
In order to explore the flame dynamics of methane under oxygen-rich conditions, a series of explosion experiments were carried out in a small-scale square transparent pipe with a CH4/O2/CO2 premixed system as the research object. Through the analysis...
In order to explore the flame dynamics of methane under oxygen-rich conditions, a series of explosion experiments were carried out in a small-scale square transparent pipe with a CH4/O2/CO2 premixed system as the research object. Through the analysis...
2022, 42(1): 013101.
doi: 10.11883/bzycj-2021-0114
Abstract:
Based on the dynamic experimental results of concrete specimens under true triaxial confinement, the Holmquist-Johnson-Cook (HJC) model considering the strain rate effect and the Drucker-Prager (DP) model considering the hydrostatic pressure effect w...
Based on the dynamic experimental results of concrete specimens under true triaxial confinement, the Holmquist-Johnson-Cook (HJC) model considering the strain rate effect and the Drucker-Prager (DP) model considering the hydrostatic pressure effect w...
2022, 42(1): 013102.
doi: 10.11883/bzycj-2021-0074
Abstract:
Crystalline silicon has a complicated phase transition mechanism, which has received extensive attention in the research field of phase diagram, and the deformation mechanism of silicon crystals under dynamic loading is the current research hotspot. ...
Crystalline silicon has a complicated phase transition mechanism, which has received extensive attention in the research field of phase diagram, and the deformation mechanism of silicon crystals under dynamic loading is the current research hotspot. ...
2022, 42(1): 013103.
doi: 10.11883/bzycj-2021-0089
Abstract:
To investigate the mechanical characteristics of static fracture of marble subjected to dynamic damage after cyclic impacts, based on the modeling technology of the finite difference method (FDM) and the discrete element method (DEM) coupling, a thre...
To investigate the mechanical characteristics of static fracture of marble subjected to dynamic damage after cyclic impacts, based on the modeling technology of the finite difference method (FDM) and the discrete element method (DEM) coupling, a thre...
2022, 42(1): 013104.
doi: 10.11883/bzycj-2021-0008
Abstract:
Effective reduction of end surface friction is necessary to ensure the validity and accuracy of the split Hopkinson pressure bar (SHPB) experimental results. In order to study the effects of sample roughness and lubrication efficiency on the end surf...
Effective reduction of end surface friction is necessary to ensure the validity and accuracy of the split Hopkinson pressure bar (SHPB) experimental results. In order to study the effects of sample roughness and lubrication efficiency on the end surf...
2022, 42(1): 013301.
doi: 10.11883/bzycj-2021-0132
Abstract:
Based on the recently proposed Kong-Fang concrete material model and the fluid structure interaction (FSI) and restart algorithms available in the LS-DYNA, the damage and failure of concrete targets subjected to projectile penetration followed by exp...
Based on the recently proposed Kong-Fang concrete material model and the fluid structure interaction (FSI) and restart algorithms available in the LS-DYNA, the damage and failure of concrete targets subjected to projectile penetration followed by exp...
2022, 42(1): 013302.
doi: 10.11883/bzycj-2021-0007
Abstract:
With the advancement of hypervelocity weapons such as the “Rods-from-God”, the damage and failure in targets induced by the hypervelocity penetrators have been a topic of current research, which is still not fully understood. To address this issue, n...
With the advancement of hypervelocity weapons such as the “Rods-from-God”, the damage and failure in targets induced by the hypervelocity penetrators have been a topic of current research, which is still not fully understood. To address this issue, n...
2022, 42(1): 013303.
doi: 10.11883/bzycj-2021-0111
Abstract:
In order to study the initiation mechanisms of the explosive charge covered with a thick shell impacted by a high- velocity rod projectiles, the shock physical explicit Eulerian dynamic software SPEED was applied to numerically simulate the interacti...
In order to study the initiation mechanisms of the explosive charge covered with a thick shell impacted by a high- velocity rod projectiles, the shock physical explicit Eulerian dynamic software SPEED was applied to numerically simulate the interacti...
2022, 42(1): 014101.
doi: 10.11883/bzycj-2020-0207
Abstract:
Gas guns with a water tank assembly, were developed for launching projectiles into water obliquely and horizontally. The burst of gas guns was controlled by the quick valve and the piston valve. The cartridges and models in the one-stage gas gun were...
Gas guns with a water tank assembly, were developed for launching projectiles into water obliquely and horizontally. The burst of gas guns was controlled by the quick valve and the piston valve. The cartridges and models in the one-stage gas gun were...
2022, 42(1): 014201.
doi: 10.11883/bzycj-2021-0218
Abstract:
The split Hopkinson tensile bar is one of the most commonly used apparatuses to test the dynamic tensile mechanical properties of materials at the high strain rates from 102 s−1 to 103 s−1, in which the specimens with a dog-bone shape are usually use...
The split Hopkinson tensile bar is one of the most commonly used apparatuses to test the dynamic tensile mechanical properties of materials at the high strain rates from 102 s−1 to 103 s−1, in which the specimens with a dog-bone shape are usually use...
2022, 42(1): 014202.
doi: 10.11883/bzycj-2021-0106
Abstract:
Underwater blast shock wave is an important load in the evaluation of the impact resistance of ships, and it is also the key and basis for the fast prediction of the structure damage in underwater explosions. In the present study, a series of small e...
Underwater blast shock wave is an important load in the evaluation of the impact resistance of ships, and it is also the key and basis for the fast prediction of the structure damage in underwater explosions. In the present study, a series of small e...
2022, 42(1): 014203.
doi: 10.11883/bzycj-2021-0095
Abstract:
In order to estimate the underwater explosion shock wave pressure of slender cone-shaped charges and to study the characteristic of long duration shock waves, an engineering model based on the superposition principle was proposed. Cone-shaped charges...
In order to estimate the underwater explosion shock wave pressure of slender cone-shaped charges and to study the characteristic of long duration shock waves, an engineering model based on the superposition principle was proposed. Cone-shaped charges...
2022, 42(1): 015201.
doi: 10.11883/bzycj-2020-0436
Abstract:
Aiming at the problem that the free surface not only affected the blasting effect but also the blasting vibration effect, an analytical method of exploring the influence of free surface on the vibration attenuation law of underwater drilling blasting...
Aiming at the problem that the free surface not only affected the blasting effect but also the blasting vibration effect, an analytical method of exploring the influence of free surface on the vibration attenuation law of underwater drilling blasting...
2022, 42(1): 015401.
doi: 10.11883/bzycj-2021-0139
Abstract:
To investigate the explosion characteristics of oil shale dust, four kinds of oil shale dust from main mining areas such as Longkou (LK), Maoming (MM), Huadian (HD) and Fushan (FS) in China were chosen as experimental samples. A 20-litre explosion sp...
To investigate the explosion characteristics of oil shale dust, four kinds of oil shale dust from main mining areas such as Longkou (LK), Maoming (MM), Huadian (HD) and Fushan (FS) in China were chosen as experimental samples. A 20-litre explosion sp...
2022, 42(1): 015402.
doi: 10.11883/bzycj-2021-0064
Abstract:
To reveal the flame propagation mechanisms in the methane/coal dust hybrid explosions, the effects of coal type and methane concentration on the propagation characteristics of methane/coal dust hybrid explosion flame were experimentally investigated....
To reveal the flame propagation mechanisms in the methane/coal dust hybrid explosions, the effects of coal type and methane concentration on the propagation characteristics of methane/coal dust hybrid explosion flame were experimentally investigated....
