2017 Vol. 37, No. 4
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2017, 37(4): 577-584.
doi: 10.11883/1001-1455(2017)04-0577-08
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Abstract:
To investigate quantitatively the effect of argon dilution on the detonation instability of C2H2-O2 mixture, we carried out a digital comparison of smoked foils from C2H2-O2 mixtures with different Argon dilutions (with an volume fraction of 50%, 70%...
To investigate quantitatively the effect of argon dilution on the detonation instability of C2H2-O2 mixture, we carried out a digital comparison of smoked foils from C2H2-O2 mixtures with different Argon dilutions (with an volume fraction of 50%, 70%...
2017, 37(4): 585-590.
doi: 10.11883/1001-1455(2017)04-0585-06
Abstract:
Since probability distributions of input parameters are usually assigned subjectively for uncertainty quantification (UQ) in numerical simulations, the selection of distributions may have significant effect on analysis results of UQ. In this paper, t...
Since probability distributions of input parameters are usually assigned subjectively for uncertainty quantification (UQ) in numerical simulations, the selection of distributions may have significant effect on analysis results of UQ. In this paper, t...
2017, 37(4): 591-599.
doi: 10.11883/1001-1455(2017)04-0591-09
Abstract:
The scattering of the SH-wave by a circular cavity near the vertical boundary in the piezoelectric bi-material half-space was analyzed using the Green function method and the mirror method to obtain the steady state response. The analytical expressio...
The scattering of the SH-wave by a circular cavity near the vertical boundary in the piezoelectric bi-material half-space was analyzed using the Green function method and the mirror method to obtain the steady state response. The analytical expressio...
2017, 37(4): 600-610.
doi: 10.11883/1001-1455(2017)04-0600-11
Abstract:
Using a gas gun driven high-speed aluminum metal foam projectile, we investigated experimentally the dynamic responses of the solid steel plate, the aluminum matrix syntactic foam sandwich panel and the aluminum foam sandwich panel, whose front and b...
Using a gas gun driven high-speed aluminum metal foam projectile, we investigated experimentally the dynamic responses of the solid steel plate, the aluminum matrix syntactic foam sandwich panel and the aluminum foam sandwich panel, whose front and b...
2017, 37(4): 611-620.
doi: 10.11883/1001-1455(2017)04-0611-10
Abstract:
Based on the local interaction theory, we proposed a penetration depth model for projectiles with an arbitrary nose-shape penetrating into a concrete target in consideration of the cratering stage related to nose-shape and normalized nose-shape funct...
Based on the local interaction theory, we proposed a penetration depth model for projectiles with an arbitrary nose-shape penetrating into a concrete target in consideration of the cratering stage related to nose-shape and normalized nose-shape funct...
2017, 37(4): 621-628.
doi: 10.11883/1001-1455(2017)04-0621-08
Abstract:
Based on an analysis of the PELE (penetrator with enhanced lateral efficiency) penetrating thin metal targets, the deformation process of the front-end projectile was divided into two distinct phases: one-dimensional decomposition in the axial direct...
Based on an analysis of the PELE (penetrator with enhanced lateral efficiency) penetrating thin metal targets, the deformation process of the front-end projectile was divided into two distinct phases: one-dimensional decomposition in the axial direct...
2017, 37(4): 629-636.
doi: 10.11883/1001-1455(2017)04-0629-08
Abstract:
To investigate the ballistic resistance and failure mode of three different low-carbon alloy steel plates subjected to ultra-high strength low alloy steel projectiles, we used the typical bulletproof special steels SS and AS and the commonly used Q23...
To investigate the ballistic resistance and failure mode of three different low-carbon alloy steel plates subjected to ultra-high strength low alloy steel projectiles, we used the typical bulletproof special steels SS and AS and the commonly used Q23...
2017, 37(4): 637-642.
doi: 10.11883/1001-1455(2017)04-0637-06
Abstract:
The protection performance and mechanism of explosive reactive armors (ERA) with composite rubber armor as its front or back plate were investigated using experiments and numerical simulation, and the results were examined in comparison with ERA usin...
The protection performance and mechanism of explosive reactive armors (ERA) with composite rubber armor as its front or back plate were investigated using experiments and numerical simulation, and the results were examined in comparison with ERA usin...
2017, 37(4): 643-648.
doi: 10.11883/1001-1455(2017)04-0643-06
Abstract:
A novel shelly cellular material made of PVC lining and foamed ceramics shell was developed in this paper. Large scaled explosion tests were performed to study the damage condition and energy absorption performances of civil defense engineering using...
A novel shelly cellular material made of PVC lining and foamed ceramics shell was developed in this paper. Large scaled explosion tests were performed to study the damage condition and energy absorption performances of civil defense engineering using...
2017, 37(4): 649-660.
doi: 10.11883/1001-1455(2017)04-0649-12
Abstract:
A field blast test including 6 specimens was conducted to investigate the effect of the axial compression ratio, the scaled distance, the hollow ratio and the shape of the facing blasting side on the dynamic response of ultra-high performance steel f...
A field blast test including 6 specimens was conducted to investigate the effect of the axial compression ratio, the scaled distance, the hollow ratio and the shape of the facing blasting side on the dynamic response of ultra-high performance steel f...
2017, 37(4): 661-669.
doi: 10.11883/1001-1455(2017)04-0661-09
Abstract:
To improve the energy utilization and fragmentation effect in rock blasting, the explosion energy partitions of end initiation and continuous side initiation were analyzed. In addition, field blasting tests were conducted in Xiangshuigou Quarry, and ...
To improve the energy utilization and fragmentation effect in rock blasting, the explosion energy partitions of end initiation and continuous side initiation were analyzed. In addition, field blasting tests were conducted in Xiangshuigou Quarry, and ...
2017, 37(4): 670-676.
doi: 10.11883/1001-1455(2017)04-0670-07
Abstract:
The dynamic interaction between the surrounding rock and the initial supporting structure is essential for determining the load of the underground structure and designing the supporting structure. Using the nonlinear dynamic finite element procedure ...
The dynamic interaction between the surrounding rock and the initial supporting structure is essential for determining the load of the underground structure and designing the supporting structure. Using the nonlinear dynamic finite element procedure ...
2017, 37(4): 677-684.
doi: 10.11883/1001-1455(2017)04-0677-08
Abstract:
In this paper, against the background of the Huangdeng gravity dam and in consideration of the influence of the concrete's high strain rate, we established a fully-coupled numerical model for the dam-water-air-explosive using the Lagrange-Euler coupl...
In this paper, against the background of the Huangdeng gravity dam and in consideration of the influence of the concrete's high strain rate, we established a fully-coupled numerical model for the dam-water-air-explosive using the Lagrange-Euler coupl...
2017, 37(4): 685-691.
doi: 10.11883/1001-1455(2017)04-0685-07
Abstract:
Being of a complex hierarchical structure with energy closed in it for its intrinsic friction and cohesion, the rock mass can be regarded as a medium with the properties of internal energy source and energy collection. The equivalent impact energy fa...
Being of a complex hierarchical structure with energy closed in it for its intrinsic friction and cohesion, the rock mass can be regarded as a medium with the properties of internal energy source and energy collection. The equivalent impact energy fa...
2017, 37(4): 692-698.
doi: 10.11883/1001-1455(2017)04-0692-07
Abstract:
Microspall is an essential problem in both theoretical investigation and engineering application in shock physics. The Asay window, originally developed to diagnose the multi-spall behavior of material, was recently employed to probe the microspall, ...
Microspall is an essential problem in both theoretical investigation and engineering application in shock physics. The Asay window, originally developed to diagnose the multi-spall behavior of material, was recently employed to probe the microspall, ...
2017, 37(4): 699-704.
doi: 10.11883/1001-1455(2017)04-0699-06
Abstract:
The creation of helium atoms is one of the main damaging mechanisms in neutron irradiated metals and is therefore a major concern in related scientific research. Recent researches under static loading conditions showed that the creation of helium ato...
The creation of helium atoms is one of the main damaging mechanisms in neutron irradiated metals and is therefore a major concern in related scientific research. Recent researches under static loading conditions showed that the creation of helium ato...
2017, 37(4): 705-711.
doi: 10.11883/1001-1455(2017)04-0705-07
Abstract:
Using finite element simulation, we investigated the spalling of such brittle materials as concrete and rock, studied the attenuation mechanism governing the stress wave propagation through the specimen of brittle materials, and found two kinds of me...
Using finite element simulation, we investigated the spalling of such brittle materials as concrete and rock, studied the attenuation mechanism governing the stress wave propagation through the specimen of brittle materials, and found two kinds of me...
2017, 37(4): 712-718.
doi: 10.11883/1001-1455(2017)04-0712-07
Abstract:
To explore the dynamic mechanical behaviors of the concrete corroded by salt solution, we fabricated concrete specimens of ordinary Portland cement with fly ash of 15% mass fraction and, having them immersed for 60 d in NaCl and Na2SO4 solutions with...
To explore the dynamic mechanical behaviors of the concrete corroded by salt solution, we fabricated concrete specimens of ordinary Portland cement with fly ash of 15% mass fraction and, having them immersed for 60 d in NaCl and Na2SO4 solutions with...
2017, 37(4): 719-726.
doi: 10.11883/1001-1455(2017)04-0719-08
Abstract:
By carrying out model experiments, we investigated the internal load characteristics of the broadside cabin of the defensive structure subjected to underwater contact explosion near the free surface. According to the damage of the experimental models...
By carrying out model experiments, we investigated the internal load characteristics of the broadside cabin of the defensive structure subjected to underwater contact explosion near the free surface. According to the damage of the experimental models...
2017, 37(4): 727-733.
doi: 10.11883/1001-1455(2017)04-0727-07
Abstract:
In this paper, the horizontal water-entry experiments of truncated-ogive projectiles at the velocity range of 100~150 m/s were conducted using a light-gas gun and a high-speed camera to record the whole water-entry process. The characteristics of the...
In this paper, the horizontal water-entry experiments of truncated-ogive projectiles at the velocity range of 100~150 m/s were conducted using a light-gas gun and a high-speed camera to record the whole water-entry process. The characteristics of the...
2017, 37(4): 734-740.
doi: 10.11883/1001-1455(2017)04-0734-07
Abstract:
The assessment of the behavior of large yellow croakers (Pseudosciaena crocea) in response to underwater acoustic waves entails clear and exact indices of assessment. In this work we collected data of underwater acoustic waves of coastal mountain bla...
The assessment of the behavior of large yellow croakers (Pseudosciaena crocea) in response to underwater acoustic waves entails clear and exact indices of assessment. In this work we collected data of underwater acoustic waves of coastal mountain bla...
2017, 37(4): 741-747.
doi: 10.11883/1001-1455(2017)04-0741-07
Abstract:
A computational study of the interaction between shock waves and a spherical flame was carried out using the ninth-order WENO and the tenth-order central difference schemes, and the influence of shock intensity and flame size on the interaction proce...
A computational study of the interaction between shock waves and a spherical flame was carried out using the ninth-order WENO and the tenth-order central difference schemes, and the influence of shock intensity and flame size on the interaction proce...
2017, 37(4): 748-758.
doi: 10.11883/1001-1455(2017)04-0748-11
Abstract:
To study the interaction process of the plane incident shock wave with the magnetized R22 heavy gas column, we numerically simulated the deformation process of the shock-wave-induced R22 heavy gas column resulting from Kelvin-Helmholtz (KH) and Richt...
To study the interaction process of the plane incident shock wave with the magnetized R22 heavy gas column, we numerically simulated the deformation process of the shock-wave-induced R22 heavy gas column resulting from Kelvin-Helmholtz (KH) and Richt...
2017, 37(4): 759-765.
doi: 10.11883/1001-1455(2017)04-0759-07
Abstract:
To explore the influence of the inerting agent with different particle sizes on the flame propagation of the combustible industrial dust, by establishing a vertical dust combustion pipe experiment platform, we investigated the effects of the particle...
To explore the influence of the inerting agent with different particle sizes on the flame propagation of the combustible industrial dust, by establishing a vertical dust combustion pipe experiment platform, we investigated the effects of the particle...
2017, 37(4): 766-772.
doi: 10.11883/1001-1455(2017)04-0766-07
Abstract:
According to the national standards of oil and gas pipeline fire test in China (GB13347—92), six DN50 crimped ribbon deflagration arrestors belonging to Group ⅡA were tested by experiments, and the flameproof velocity of every single arrestor was obt...
According to the national standards of oil and gas pipeline fire test in China (GB13347—92), six DN50 crimped ribbon deflagration arrestors belonging to Group ⅡA were tested by experiments, and the flameproof velocity of every single arrestor was obt...
2017, 37(4): 773-778.
doi: 10.11883/1001-1455(2017)04-0773-06
Abstract:
To study the characteristics of the methane-air mixture exploding in a closed spherical container, we determined the appropriate combustion products and chemical equilibrium temperature using the chemical equilibrium calculation software, thereby pre...
To study the characteristics of the methane-air mixture exploding in a closed spherical container, we determined the appropriate combustion products and chemical equilibrium temperature using the chemical equilibrium calculation software, thereby pre...
2017, 37(4): 779-784.
doi: 10.11883/1001-1455(2017)04-0779-06
Abstract:
Vehicles are apt to catch fire easily in high-temperature weather or in traffic accidents. When their fuel tanks cook off, an explosion may occur, thereby posing a hazard to personal safety. To investigate the cook-off performance of fuel tanks, we c...
Vehicles are apt to catch fire easily in high-temperature weather or in traffic accidents. When their fuel tanks cook off, an explosion may occur, thereby posing a hazard to personal safety. To investigate the cook-off performance of fuel tanks, we c...
