2010 Vol. 30, No. 3
Display Method:
2010, 30(3): 225-231.
doi: 10.11883/1001-1455(2010)03-0225-07
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Abstract:
The commerical finite element software MSC.Dytran was used to numerically investigate the damage modes of stiffened plates under underwater explosion loads in the case of the different charge quantities and stand-off distances. Some experiments were ...
The commerical finite element software MSC.Dytran was used to numerically investigate the damage modes of stiffened plates under underwater explosion loads in the case of the different charge quantities and stand-off distances. Some experiments were ...
2010, 30(3): 232-238.
doi: 10.11883/1001-1455(2010)03-0232-07
Abstract:
Ultra-high performance cementitious composites (UHPCC) were prepared by substitution ofultra-fine industrial waste powder for large quantity of cement by weight and replacement of groundfine quartz sand with natural fine sand with the maximum particl...
Ultra-high performance cementitious composites (UHPCC) were prepared by substitution ofultra-fine industrial waste powder for large quantity of cement by weight and replacement of groundfine quartz sand with natural fine sand with the maximum particl...
2010, 30(3): 239-246.
doi: 10.11883/1001-1455(2010)03-0239-08
Abstract:
A series of numerical simulations of SHPB test using 921A steel pure shear hat-shaped specimens are conducted with ANSYS/LS-DYNA and validated by the SHPB tests in the present paper. Integrated with the theory of stress wave in a SHPB system,the wave...
A series of numerical simulations of SHPB test using 921A steel pure shear hat-shaped specimens are conducted with ANSYS/LS-DYNA and validated by the SHPB tests in the present paper. Integrated with the theory of stress wave in a SHPB system,the wave...
2010, 30(3): 247-253.
doi: 10.11883/1001-1455(2010)03-0247-07
Abstract:
The acoustic emission(AE) tests of rock failure were made on the SHPB test system and the law of the AE energy was obtained under coupled static-dynamic load. The AE energy presents two different features:mode I,the energy decays rapidly after the pe...
The acoustic emission(AE) tests of rock failure were made on the SHPB test system and the law of the AE energy was obtained under coupled static-dynamic load. The AE energy presents two different features:mode I,the energy decays rapidly after the pe...
2010, 30(3): 254-261.
doi: 10.11883/1001-1455(2010)03-0254-08
Abstract:
By adopting the irrotational and steady motion of the ideal compressible fluid and the supercavity with the Riabushinsky scheme of closure,an integro-differential equation was derived for the supercavitating flow around a slender cone-shaped projecti...
By adopting the irrotational and steady motion of the ideal compressible fluid and the supercavity with the Riabushinsky scheme of closure,an integro-differential equation was derived for the supercavitating flow around a slender cone-shaped projecti...
2010, 30(3): 262-268.
doi: 10.11883/1001-1455(2010)03-0262-07
Abstract:
Based on the multi-viscous-fluid piecewise parabolic method,the Smagorinsky and Vreman subgrid eddy viscosity models were employed to the Navier-Stokes equations. A two-dimensional computational code MVFT(multi-viscosity-fluid and turbulence) was dev...
Based on the multi-viscous-fluid piecewise parabolic method,the Smagorinsky and Vreman subgrid eddy viscosity models were employed to the Navier-Stokes equations. A two-dimensional computational code MVFT(multi-viscosity-fluid and turbulence) was dev...
2010, 30(3): 269-275.
doi: 10.11883/1001-1455(2010)03-0269-07
Abstract:
Penetration experiments were conducted for several typical cylindrical-nose-tip projectiles (CNTP) into concrete targets with the compressive strengths of 9.0,28.4 MPa. The penetration mechanism was elementarily obtained by observing the recovered pr...
Penetration experiments were conducted for several typical cylindrical-nose-tip projectiles (CNTP) into concrete targets with the compressive strengths of 9.0,28.4 MPa. The penetration mechanism was elementarily obtained by observing the recovered pr...
2010, 30(3): 276-282.
doi: 10.11883/1001-1455(2010)03-0276-07
Abstract:
A drum-shaped steel wire rope isolator was applied to a two-floor steel construction to achieve a whole vibration-isolating system. Numerical simulation was carried out by the finite element method to explore the vibration-isolating efficiency of the...
A drum-shaped steel wire rope isolator was applied to a two-floor steel construction to achieve a whole vibration-isolating system. Numerical simulation was carried out by the finite element method to explore the vibration-isolating efficiency of the...
2010, 30(3): 283-287.
doi: 10.11883/1001-1455(2010)03-0283-05
Abstract:
A 100 kV/60 kJ electric gun was developed. The electrical character and geometric scale of the load,as well as the experimental setup,were presented. The experimental results indicate that the flyer has good integrality and high flatness. The electri...
A 100 kV/60 kJ electric gun was developed. The electrical character and geometric scale of the load,as well as the experimental setup,were presented. The experimental results indicate that the flyer has good integrality and high flatness. The electri...
2010, 30(3): 288-294.
doi: 10.11883/1001-1455(2010)03-0288-07
Abstract:
The quantitative relationships between the lower flammability limits (LFL) and the molecular structures of hydrocarbon compounds were investigated based on the quantitative structure-property relationship (QSPR) studies. Various structure parameters ...
The quantitative relationships between the lower flammability limits (LFL) and the molecular structures of hydrocarbon compounds were investigated based on the quantitative structure-property relationship (QSPR) studies. Various structure parameters ...
2010, 30(3): 295-300.
doi: 10.11883/1001-1455(2010)03-0295-06
Abstract:
A new computational method of two-phase flow interior ballistics which can be used to study the launch safety problem of propellant charge is put forward based on the DCD scheme. By rewriting the form of items about pressure in dynamics equation grou...
A new computational method of two-phase flow interior ballistics which can be used to study the launch safety problem of propellant charge is put forward based on the DCD scheme. By rewriting the form of items about pressure in dynamics equation grou...
2010, 30(3): 301-307.
doi: 10.11883/1001-1455(2010)03-0301-07
Abstract:
Aluminum foam projectiles were used to dynamically load clamped quadrate sandwich plates with an aluminum foam core and monolithic solid plates. A laser Doppler velocimeter and a laser displacement transducer were applied to measure the impact veloci...
Aluminum foam projectiles were used to dynamically load clamped quadrate sandwich plates with an aluminum foam core and monolithic solid plates. A laser Doppler velocimeter and a laser displacement transducer were applied to measure the impact veloci...
2010, 30(3): 308-313.
doi: 10.11883/1001-1455(2010)03-0308-06
Abstract:
To find out the relationship between the sensitizer and the emulsion explosive pressure desensitization,the pressure desensitization of the emulsion explosives was studied which were sensitized respectively with two types of compound sensitizers of c...
To find out the relationship between the sensitizer and the emulsion explosive pressure desensitization,the pressure desensitization of the emulsion explosives was studied which were sensitized respectively with two types of compound sensitizers of c...
2010, 30(3): 314-319.
doi: 10.11883/1001-1455(2010)03-0314-06
Abstract:
Temperature change of earth penetrators during penetration into concrete target
Temperature change of earth penetrators during penetration into concrete target
2010, 30(3): 320-324.
doi: 10.11883/1001-1455(2010)03-0320-05
Abstract:
Ti6Al4V alloy samples were symmetrically and asymmetrically impacted by using a one-stage light gas gun. The recovered samples were analyzed by the scanning electron microscopy and X-ray diffraction. Results indicate that with the increasing of the i...
Ti6Al4V alloy samples were symmetrically and asymmetrically impacted by using a one-stage light gas gun. The recovered samples were analyzed by the scanning electron microscopy and X-ray diffraction. Results indicate that with the increasing of the i...
2010, 30(3): 325-328.
doi: 10.11883/1001-1455(2010)03-0325-04
Abstract:
Aimed at the explosion of the CH4/CO2 reforming reaction,a series of investigations were carried out to explore the explosion characteristics of the carbon powder. It is indicated that the higher the volatile content in the carbon powder,the greater ...
Aimed at the explosion of the CH4/CO2 reforming reaction,a series of investigations were carried out to explore the explosion characteristics of the carbon powder. It is indicated that the higher the volatile content in the carbon powder,the greater ...
2010, 30(3): 329-332.
doi: 10.11883/1001-1455(2010)03-0329-04
Abstract:
To meet the test requirements in special situation,a high-g accelerometer structure with four-terminal fixed beam-island was designed. The dynamic characteristics of the accelerometer were test by using the Hopkinson bar impact calibration device. Th...
To meet the test requirements in special situation,a high-g accelerometer structure with four-terminal fixed beam-island was designed. The dynamic characteristics of the accelerometer were test by using the Hopkinson bar impact calibration device. Th...
2010, 30(3): 333-336.
doi: 10.11883/1001-1455(2010)03-0333-04
Abstract:
A small-size acceleration measurement system based on ARM system was designed by using acceleration chip Model 1221 and expanding the external memory. Combined with the communication port,the application software was developed to display,store and de...
A small-size acceleration measurement system based on ARM system was designed by using acceleration chip Model 1221 and expanding the external memory. Combined with the communication port,the application software was developed to display,store and de...
