2019 Vol. 39, No. 11
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2019, 39(11): 112101.
doi: 10.11883/bzycj-2018-0410
Abstract:
This paper offers a new method for calculating the reaction rate of the pore collapse hot-spot ignition in multi-component PBX explosives, and proposes a new mesoscopic reaction rate model capable of describing and predicting the shock initiation and...
This paper offers a new method for calculating the reaction rate of the pore collapse hot-spot ignition in multi-component PBX explosives, and proposes a new mesoscopic reaction rate model capable of describing and predicting the shock initiation and...
2019, 39(11): 112102.
doi: 10.11883/bzycj-2018-0482
Abstract:
The influence of orifice plate perturbation on detonation cellular structure was experimentally investigated. The cellular structure of detonation wave was recorded in a circular detonation tube withthe smoked film method.The stable mixture 2H2+O2+3A...
The influence of orifice plate perturbation on detonation cellular structure was experimentally investigated. The cellular structure of detonation wave was recorded in a circular detonation tube withthe smoked film method.The stable mixture 2H2+O2+3A...
2019, 39(11): 112201.
doi: 10.11883/bzycj-2018-0287
Abstract:
In order to predict the intense blast wave in air, a multi-material numerical scheme is proposed in two-dimensional cylindrical coordinates on Eulerian grids, which can handle the blast wave problems with high ratio in initial density and pressure. C...
In order to predict the intense blast wave in air, a multi-material numerical scheme is proposed in two-dimensional cylindrical coordinates on Eulerian grids, which can handle the blast wave problems with high ratio in initial density and pressure. C...
2019, 39(11): 113101.
doi: 10.11883/bzycj-2018-0506
Abstract:
In order to obtain the effect of meso-structure on plain/reinforced concrete slabs under explosive loading, a meso-structure model of plain/reinforced concrete slabs with stochastic aggregate method was adopted. LS-DYNA was used for numerical simulat...
In order to obtain the effect of meso-structure on plain/reinforced concrete slabs under explosive loading, a meso-structure model of plain/reinforced concrete slabs with stochastic aggregate method was adopted. LS-DYNA was used for numerical simulat...
2019, 39(11): 113301.
doi: 10.11883/bzycj-2018-0402
Abstract:
Whether the replica scaling law holds or not is of great significance because penetration tests of concrete targets against rigid projectiles are commonly conducted in a reduced scale. In this paper, based on the replica scaling model and the analyse...
Whether the replica scaling law holds or not is of great significance because penetration tests of concrete targets against rigid projectiles are commonly conducted in a reduced scale. In this paper, based on the replica scaling model and the analyse...
2019, 39(11): 113901.
doi: 10.11883/bzycj-2018-0315
Abstract:
The numerical simulation of oblique water entry of a certain type of ship-borne projectile at high speed was performed. The FVM method and the VOF multiphase flow model were introduced to solve RANS equations, and the overset mesh and six DOF algorit...
The numerical simulation of oblique water entry of a certain type of ship-borne projectile at high speed was performed. The FVM method and the VOF multiphase flow model were introduced to solve RANS equations, and the overset mesh and six DOF algorit...
2019, 39(11): 113902.
doi: 10.11883/bzycj-2018-0498
Abstract:
In this work we conducted comparative experiments of different truncated cone-nosed projectiles entering water at low-speed and oblique inclination to investigate the influence of the size of the head diameter on water-entry cavity and ballistic char...
In this work we conducted comparative experiments of different truncated cone-nosed projectiles entering water at low-speed and oblique inclination to investigate the influence of the size of the head diameter on water-entry cavity and ballistic char...
2019, 39(11): 113201.
doi: 10.11883/bzycj-2018-0247
Abstract:
A multitude of flaws always exists in brittle material and the influence will be exerted on by other flaws when one flaw is propagating. To investigate the propagation, coalition behavior and stress intensity factors of two cracks in brittle material...
A multitude of flaws always exists in brittle material and the influence will be exerted on by other flaws when one flaw is propagating. To investigate the propagation, coalition behavior and stress intensity factors of two cracks in brittle material...
2019, 39(11): 115101.
doi: 10.11883/bzycj-2018-0237
Abstract:
A kind of hollow reinforced concrete column with inner octagon steel tube is considered as the object of this study. The experiments are carried out using a large drop testing machine which was designed by ourselves. The analysis parameters included ...
A kind of hollow reinforced concrete column with inner octagon steel tube is considered as the object of this study. The experiments are carried out using a large drop testing machine which was designed by ourselves. The analysis parameters included ...
2019, 39(11): 115102.
doi: 10.11883/bzycj-2018-0500
Abstract:
In this work we carried out a lateral impact test of steel reinforced concrete (SRC) members using a super heavy drop weight impact tester, studied the whole process of impact and the ultimate failure mode of drop weight impacted SRC members, and ana...
In this work we carried out a lateral impact test of steel reinforced concrete (SRC) members using a super heavy drop weight impact tester, studied the whole process of impact and the ultimate failure mode of drop weight impacted SRC members, and ana...
2019, 39(11): 115103.
doi: 10.11883/bzycj-2018-0320
Abstract:
As the road plays a more important role in the missile’s unsupported random launch, it is of great significance to study the settlement and damage characteristics under the impulse load of the launching cylinder to improve the weapon deterrent force ...
As the road plays a more important role in the missile’s unsupported random launch, it is of great significance to study the settlement and damage characteristics under the impulse load of the launching cylinder to improve the weapon deterrent force ...
2019, 39(11): 115401.
doi: 10.11883/bzycj-2018-0236
Abstract:
In order to develop green, eco-friendly and highly efficient explosion suppression agent, hydrophobic fumed silica and deionized water are used as the raw materials to prepare novel dry water materials with " water encapsulation by solid” structure b...
In order to develop green, eco-friendly and highly efficient explosion suppression agent, hydrophobic fumed silica and deionized water are used as the raw materials to prepare novel dry water materials with " water encapsulation by solid” structure b...
2019, 39(11): 115402.
doi: 10.11883/bzycj-2018-0394
Abstract:
In this paper, to investigate the variation of the critical initial release pressure with the pipeline length in high-pressure hydrogen leakage that leads to spontaneous combustion and the transition process from spontaneous combustion flame inside t...
In this paper, to investigate the variation of the critical initial release pressure with the pipeline length in high-pressure hydrogen leakage that leads to spontaneous combustion and the transition process from spontaneous combustion flame inside t...
2019, 39(11): 115403.
doi: 10.11883/bzycj-2018-0228
Abstract:
To investigate the effect of blockage ratios (φ) on the inhibited flame, an experimental study was performed to suppress the methane-air explosions in a 5 L duct with the blockage ratios φ = 0, 0.2, 0.4, 0.6, 0.7, 1.0 under BC and Al(OH)3 inhibitors ...
To investigate the effect of blockage ratios (φ) on the inhibited flame, an experimental study was performed to suppress the methane-air explosions in a 5 L duct with the blockage ratios φ = 0, 0.2, 0.4, 0.6, 0.7, 1.0 under BC and Al(OH)3 inhibitors ...
2019, 39(11): 115404.
doi: 10.11883/bzycj-2018-0276
Abstract:
Using a 20 L spherical explosive device filled with porous rare earth metal materials, we investigated the explosion characteristics variation of the premixed methane-air mixture in two different filling patterns: spherical and flaky. The influences ...
Using a 20 L spherical explosive device filled with porous rare earth metal materials, we investigated the explosion characteristics variation of the premixed methane-air mixture in two different filling patterns: spherical and flaky. The influences ...
