2007 Vol. 27, No. 5
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2007, 27(5): 385-389.
doi: 10.11883/1001-1455(2007)05-0385-05
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Abstract:
Application of linear cutting technique with micro detonation cord( MDC) in penetration ejection system was proposed to improve successful probability of aerial aviator/seat escape system and to reduce aeroplane complexity. Different kinds of MDC w...
Application of linear cutting technique with micro detonation cord( MDC) in penetration ejection system was proposed to improve successful probability of aerial aviator/seat escape system and to reduce aeroplane complexity. Different kinds of MDC w...
2007, 27(5): 390-397.
doi: 10.11883/1001-1455(2007)05-0390-08
Abstract:
Three failure modes of penetration mechanisms, i.e., Taylor impact, petal-cap failure of Sunflower alike and plugging perforation, of Fragment Simulation Projectiles (FSP), were observed in the experiments of A3 steel blunt projectiles impacting 45 s...
Three failure modes of penetration mechanisms, i.e., Taylor impact, petal-cap failure of Sunflower alike and plugging perforation, of Fragment Simulation Projectiles (FSP), were observed in the experiments of A3 steel blunt projectiles impacting 45 s...
2007, 27(5): 398-404.
doi: 10.11883/1001-1455(2007)05-0398-07
Abstract:
Two types of ferromagnetic generators were designed. For one type, a cylinder Nd2Fe14B rare-earth permanent magnet was used as working body, and a plane shock wave forms the detonation of the explosives moved in the cylinder along the direction of it...
Two types of ferromagnetic generators were designed. For one type, a cylinder Nd2Fe14B rare-earth permanent magnet was used as working body, and a plane shock wave forms the detonation of the explosives moved in the cylinder along the direction of it...
2007, 27(5): 405-410.
doi: 10.11883/1001-1455(2007)05-0405-06
Abstract:
The features of energy distribution for blasting seismic wave which is short-time non-stationary random signal are analysed by wavelet transform technique. According to the time-frequency characteristic and multiresolution decomposition of discrete w...
The features of energy distribution for blasting seismic wave which is short-time non-stationary random signal are analysed by wavelet transform technique. According to the time-frequency characteristic and multiresolution decomposition of discrete w...
2007, 27(5): 411-415.
doi: 10.11883/1001-1455(2007)05-0411-05
Abstract:
The direct stress measurement method by PVDF gauge is introduced. The dynamic piezo constant of PVDF gauge is calibrated on the SHPB set-up. Influences of stress concentration, Poisson effect, friction effect on the pulse and the dynamic piezo consta...
The direct stress measurement method by PVDF gauge is introduced. The dynamic piezo constant of PVDF gauge is calibrated on the SHPB set-up. Influences of stress concentration, Poisson effect, friction effect on the pulse and the dynamic piezo consta...
2007, 27(5): 416-419.
doi: 10.11883/1001-1455(2007)05-0416-04
Abstract:
Determining of penetration deceleration on rigid-body by low-pass filtering of the measured penetration deceleration data is investigated. The concept of critical filter cut-off frequency is proposed. Critical filter cut-off frequency is acquired, pe...
Determining of penetration deceleration on rigid-body by low-pass filtering of the measured penetration deceleration data is investigated. The concept of critical filter cut-off frequency is proposed. Critical filter cut-off frequency is acquired, pe...
2007, 27(5): 420-425.
doi: 10.11883/1001-1455(2007)05-0420-06
Abstract:
With Ghost-fluid Euler-Lagrange (GEL) method，a two-dimensional code was developed to couple an Eulerian program(SCB scheme) with a Lagrangian code(DEFEL: 2-D finite element code). Comparing the result of a one-dimensional Riemman problem with one res...
With Ghost-fluid Euler-Lagrange (GEL) method，a two-dimensional code was developed to couple an Eulerian program(SCB scheme) with a Lagrangian code(DEFEL: 2-D finite element code). Comparing the result of a one-dimensional Riemman problem with one res...
2007, 27(5): 426-430.
doi: 10.11883/1001-1455(2007)05-0426-05
Abstract:
Based on action force analysis of slope slice，a calculation method of safety coefficient for slope stability was proposed according to the definition of safety coefficient and the Mohr-Column criteria. Reliability of the proposed method was verified ...
Based on action force analysis of slope slice，a calculation method of safety coefficient for slope stability was proposed according to the definition of safety coefficient and the Mohr-Column criteria. Reliability of the proposed method was verified ...
2007, 27(5): 431-437.
doi: 10.11883/1001-1455(2007)05-0431-07
Abstract:
A series of experiments were performed to research the dynamic response of fluid cabin at the bottom of warship subjected to underwater explosion. In these experiments, there are three states of fluid cabins, such as cabins without fluid, half fluid ...
A series of experiments were performed to research the dynamic response of fluid cabin at the bottom of warship subjected to underwater explosion. In these experiments, there are three states of fluid cabins, such as cabins without fluid, half fluid ...
2007, 27(5): 438-444.
doi: 10.11883/1001-1455(2007)05-0438-07
Abstract:
Impact-damage experiments on limestone specimens were carried out on one-stage light-gas gun. Pressure in specimens during shock wave action process was tested by manganin gauge. Impact-damaged and fragmentation properties of lime rock were analyzed ...
Impact-damage experiments on limestone specimens were carried out on one-stage light-gas gun. Pressure in specimens during shock wave action process was tested by manganin gauge. Impact-damaged and fragmentation properties of lime rock were analyzed ...
2007, 27(5): 445-450.
doi: 10.11883/1001-1455(2007)05-0445-06
Abstract:
The experimental research was carried out on the energy output characteristics of insensitive RDX, RDX/Al and SEFAE in the explosion chamber and under water. Numerical simulation was conducted to study the internal blast loading of explosion chamber ...
The experimental research was carried out on the energy output characteristics of insensitive RDX, RDX/Al and SEFAE in the explosion chamber and under water. Numerical simulation was conducted to study the internal blast loading of explosion chamber ...
2007, 27(5): 451-454.
doi: 10.11883/1001-1455(2007)05-0451-04
Abstract:
Introduces some new developments in nonauditory damage assessment method exposed to complex waves, analyzes feature and applicable range of these nonauditory damage assessment methods. Max inward chest velocity method, effective peak method and injur...
Introduces some new developments in nonauditory damage assessment method exposed to complex waves, analyzes feature and applicable range of these nonauditory damage assessment methods. Max inward chest velocity method, effective peak method and injur...
2007, 27(5): 455-460.
doi: 10.11883/1001-1455(2007)05-0455-06
Abstract:
Aiming at the shortages on quantity and speed existed in the tunnel blasting design now mainly completed by the artificial method and the CAD, the composition and structure of intelligent system for tunnel blasting design was studied. According to th...
Aiming at the shortages on quantity and speed existed in the tunnel blasting design now mainly completed by the artificial method and the CAD, the composition and structure of intelligent system for tunnel blasting design was studied. According to th...
2007, 27(5): 461-467.
doi: 10.11883/1001-1455(2007)05-0461-07
Abstract:
The long-term and transient deformation characteristics of soft soil ground under explosive loading are analyzed through the field test and numerical simulation. The main factors affecting explosion results and the remarkably impact range in the soil...
The long-term and transient deformation characteristics of soft soil ground under explosive loading are analyzed through the field test and numerical simulation. The main factors affecting explosion results and the remarkably impact range in the soil...
2007, 27(5): 468-472.
doi: 10.11883/1001-1455(2007)05-0468-05
Abstract:
The function, structure and damage mechanism of the missile were studied to analyze the missile vulnerability to the fragment warhead. The damage levels, tree and damage criterion of every component of the missile were given. Based on these, the vuln...
The function, structure and damage mechanism of the missile were studied to analyze the missile vulnerability to the fragment warhead. The damage levels, tree and damage criterion of every component of the missile were given. Based on these, the vuln...
2007, 27(5): 473-476.
doi: 10.11883/1001-1455(2007)05-0473-04
Abstract:
Combining with a measurement of velocity by photoelectric technology, rebuilding a type of nail gun used in civil engineering, a more simple, reliable and miniaturized measurer for shockwave velocity was developed. Thus, the difficult problem to pred...
Combining with a measurement of velocity by photoelectric technology, rebuilding a type of nail gun used in civil engineering, a more simple, reliable and miniaturized measurer for shockwave velocity was developed. Thus, the difficult problem to pred...
2007, 27(5): 477-480.
doi: 10.11883/1001-1455(2007)05-0477-04
Abstract:
Based on developed numerical simulation method, the impacting behavior of copper particle colliding copper substrate in process of transforming material property is investigated. The join strength, penetration depth and condition of emerging adiabati...
Based on developed numerical simulation method, the impacting behavior of copper particle colliding copper substrate in process of transforming material property is investigated. The join strength, penetration depth and condition of emerging adiabati...
