2020 Vol. 40, No. 1
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2020, 40(1): 011401.
doi: 10.11883/bzycj-2019-0346
Abstract:
The progress in explosive safety studies related to experiment achievements with precise diagnostics and understanding of non-shock initiation of explosive phenomena in recent 20 years is reviewed. Some widespread misconceptions and misleading in non...
The progress in explosive safety studies related to experiment achievements with precise diagnostics and understanding of non-shock initiation of explosive phenomena in recent 20 years is reviewed. Some widespread misconceptions and misleading in non...
2020, 40(1): 011402.
doi: 10.11883/bzycj-2019-0348
Abstract:
High temperature gaseous products of conductive burning on explosive surface can penetrate into preformed crack inside explosive bulk under high pressure to form so-called convective burning. The high rising gaseous products pressure resulting from t...
High temperature gaseous products of conductive burning on explosive surface can penetrate into preformed crack inside explosive bulk under high pressure to form so-called convective burning. The high rising gaseous products pressure resulting from t...
2020, 40(1): 011403.
doi: 10.11883/bzycj-2019-0345
Abstract:
The aim of this paper is to deep understand the pressurization behavior in evolution of crack burning, and promote the acknowledge level for transition mechanism of high intensity reaction in projectile fillings under accidental ignition. Based on qu...
The aim of this paper is to deep understand the pressurization behavior in evolution of crack burning, and promote the acknowledge level for transition mechanism of high intensity reaction in projectile fillings under accidental ignition. Based on qu...
2020, 40(1): 011404.
doi: 10.11883/bzycj-2019-0347
Abstract:
The burn rate-pressure characteristic of explosive is the intrinsic factor of ammunition safety, which reflects the potential tendency of the development of reaction violence. We conducted the experiment to understand the deflagration behavior of PBX...
The burn rate-pressure characteristic of explosive is the intrinsic factor of ammunition safety, which reflects the potential tendency of the development of reaction violence. We conducted the experiment to understand the deflagration behavior of PBX...
2020, 40(1): 011405.
doi: 10.11883/bzycj-2019-0360
Abstract:
In order to investigate whether the reaction evolution of pressed HMX-based PBXs inside long thick wall steel tube initiated by ignition composition leads to detonation finally or not, a new experiment apparatus was designed based on traditional DDT ...
In order to investigate whether the reaction evolution of pressed HMX-based PBXs inside long thick wall steel tube initiated by ignition composition leads to detonation finally or not, a new experiment apparatus was designed based on traditional DDT ...
2020, 40(1): 012101.
doi: 10.11883/bzycj-2019-0004
Abstract:
This paper is aimed at revealing the couplings of flame instabilities and explosion pressure. By introducing flame wrinkling factor into the smooth flame model, the wrinkled flame model and turbulent flame model are developed to predict explosion pre...
This paper is aimed at revealing the couplings of flame instabilities and explosion pressure. By introducing flame wrinkling factor into the smooth flame model, the wrinkled flame model and turbulent flame model are developed to predict explosion pre...
2020, 40(1): 013101.
doi: 10.11883/bzycj-2019-0038
Abstract:
In this paper, dynamic compression response of metal orthogonal corrugated sandwich structures under impact loading is investigated theoretically and numerically. Considering the effect of strain rate of material, analytical models of dynamic respons...
In this paper, dynamic compression response of metal orthogonal corrugated sandwich structures under impact loading is investigated theoretically and numerically. Considering the effect of strain rate of material, analytical models of dynamic respons...
2020, 40(1): 013102.
doi: 10.11883/bzycj-2019-0041
Abstract:
Solids will be broken into multiple fragments under dynamic tension loadings. The Mott-Grady model based on linear cohesive fracture can predict the lower limits of average fragment size during fragmentation process. However, the damage evolution of ...
Solids will be broken into multiple fragments under dynamic tension loadings. The Mott-Grady model based on linear cohesive fracture can predict the lower limits of average fragment size during fragmentation process. However, the damage evolution of ...
2020, 40(1): 013201.
doi: 10.11883/bzycj-2019-0029
Abstract:
When warheads such as missiles and artillery bombs explode with a certain velocity, such velocity of motion will change the field of blast wave and thus affect the damage power of ammunition. In this paper, numerical simulation of shock wave field of...
When warheads such as missiles and artillery bombs explode with a certain velocity, such velocity of motion will change the field of blast wave and thus affect the damage power of ammunition. In this paper, numerical simulation of shock wave field of...
2020, 40(1): 014201.
doi: 10.11883/bzycj-2018-0467
Abstract:
A simple and stable wavelet method, which is based on adaptive wavelet collocation methods and artificial viscosity techniques, was proposed to compute shock waves. Dynamic multiscale grids generated by wavelet threshold filtering adaptive to the flo...
A simple and stable wavelet method, which is based on adaptive wavelet collocation methods and artificial viscosity techniques, was proposed to compute shock waves. Dynamic multiscale grids generated by wavelet threshold filtering adaptive to the flo...
2020, 40(1): 015201.
doi: 10.11883/bzycj-2018-0495
Abstract:
Aiming at the unevenness of the root bottom and the low power capacity of the explosive in the present stage of smooth blasting, a kind of spiral tube shaped charge was put forward. In order to explore the rock-breaking mechanism of the charge, LS-DY...
Aiming at the unevenness of the root bottom and the low power capacity of the explosive in the present stage of smooth blasting, a kind of spiral tube shaped charge was put forward. In order to explore the rock-breaking mechanism of the charge, LS-DY...
2020, 40(1): 015901.
doi: 10.11883/bzycj-2018-0348
Abstract:
Blast-induced traumatic brain injury (b-TBI) is a signature injury in the current military conflicts. However, the relevant mechanism of injury has not been fully elucidated. In this paper, numerical simulation study is carried out to investigate the...
Blast-induced traumatic brain injury (b-TBI) is a signature injury in the current military conflicts. However, the relevant mechanism of injury has not been fully elucidated. In this paper, numerical simulation study is carried out to investigate the...
