2015 Vol. 35, No. 1
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2015, 35(1): 1-8.
doi: 10.11883/1001-1455(2015)01-0001-08
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Abstract:
Based on the dynamic Rigid-Linear Hardening Plastic-Rigid Unloading (D-R-LHP-R) model of foam materials and starting from the displacement continuity equation, the momentum conservation equation and the motion equation of rigid part, the relation bet...
Based on the dynamic Rigid-Linear Hardening Plastic-Rigid Unloading (D-R-LHP-R) model of foam materials and starting from the displacement continuity equation, the momentum conservation equation and the motion equation of rigid part, the relation bet...
2015, 35(1): 9-15.
doi: 10.11883/1001-1455(2015)01-0009-07
Abstract:
A non-intrusive polynomial chaos method was introduced, and the main procedure of uncertainty quantification for JWL-EOS parameters was given. The method was implemented for the uncertainty quantification of the input parametersR1 and R2 of JWL-EOS t...
A non-intrusive polynomial chaos method was introduced, and the main procedure of uncertainty quantification for JWL-EOS parameters was given. The method was implemented for the uncertainty quantification of the input parametersR1 and R2 of JWL-EOS t...
2015, 35(1): 16-21.
doi: 10.11883/1001-1455(2015)01-0016-06
Abstract:
In order to clarify the influence the base materials have on aluminium honeycombs and to explore the difference of the buckling modes between dynamic and static compression, research of honeycombs with different base materials (3003H18 and 5052H18 al...
In order to clarify the influence the base materials have on aluminium honeycombs and to explore the difference of the buckling modes between dynamic and static compression, research of honeycombs with different base materials (3003H18 and 5052H18 al...
2015, 35(1): 22-28.
doi: 10.11883/1001-1455(2015)01-0022-07
Abstract:
First, the experiments that the steel balls impact to 2D-C/SiC composite under velocity of 79~ 219 m/s are investigated by using the air gun. Second, material parameters of 2D-C/SiC are obtained based on an orthotropic constitutive material model in ...
First, the experiments that the steel balls impact to 2D-C/SiC composite under velocity of 79~ 219 m/s are investigated by using the air gun. Second, material parameters of 2D-C/SiC are obtained based on an orthotropic constitutive material model in ...
2015, 35(1): 29-35.
doi: 10.11883/1001-1455(2015)01-0029-07
Abstract:
A two-dimensional mathematical model of viscous aluminum/air two-phase detonation is established. The flow field inside the detonation tube was calculated by the method of conservation element and solution element. And the distribution of physical pa...
A two-dimensional mathematical model of viscous aluminum/air two-phase detonation is established. The flow field inside the detonation tube was calculated by the method of conservation element and solution element. And the distribution of physical pa...
2015, 35(1): 36-42.
doi: 10.11883/1001-1455(2015)01-0036-07
Abstract:
To investigate the influences of temperature, impact velocity and fiber volumetric fraction on dynamic compressive strength and impact toughness of basalt fiber reinforced concrete (BFRC), dynamic compressive experiments were carried out on BFRC afte...
To investigate the influences of temperature, impact velocity and fiber volumetric fraction on dynamic compressive strength and impact toughness of basalt fiber reinforced concrete (BFRC), dynamic compressive experiments were carried out on BFRC afte...
2015, 35(1): 43-50.
doi: 10.11883/1001-1455(2015)01-0043-08
Abstract:
According to the uncertainty of rock burst intensity prediction and the incompatible problem of the single index which mainly influences the rock burst, a method combining variable weight theory with the degree of target approaching is proposed to ma...
According to the uncertainty of rock burst intensity prediction and the incompatible problem of the single index which mainly influences the rock burst, a method combining variable weight theory with the degree of target approaching is proposed to ma...
2015, 35(1): 51-56.
doi: 10.11883/1001-1455(2015)01-0051-06
Abstract:
The uniaxial compressive properties of aviation polyurethane were investigated experimentally by using a modified aluminum split Hopkinson pressure bar apparatus. The obtained stress-strain curves presented distinct non-linear viscoelastic characteri...
The uniaxial compressive properties of aviation polyurethane were investigated experimentally by using a modified aluminum split Hopkinson pressure bar apparatus. The obtained stress-strain curves presented distinct non-linear viscoelastic characteri...
2015, 35(1): 57-64.
doi: 10.11883/1001-1455(2015)01-0057-08
Abstract:
For the internal-combustion engine, super knock produced by new combustion system may cause detonation in combustion chamber, which may damage the piston. 2D numerical simulation which is conducted by Ansys Fluent is used to investigate the propagati...
For the internal-combustion engine, super knock produced by new combustion system may cause detonation in combustion chamber, which may damage the piston. 2D numerical simulation which is conducted by Ansys Fluent is used to investigate the propagati...
2015, 35(1): 65-69.
doi: 10.11883/1001-1455(2015)01-0065-05
Abstract:
A simple method was developed for measuring the impulse current waveform produce by a small high-voltage exploding device. The model of impulse current was determined by attenuation coefficient. To estimate the attenuation coefficient from the actual...
A simple method was developed for measuring the impulse current waveform produce by a small high-voltage exploding device. The model of impulse current was determined by attenuation coefficient. To estimate the attenuation coefficient from the actual...
2015, 35(1): 70-75.
doi: 10.11883/1001-1455(2015)01-0070-06
Abstract:
A solid traveling charge concept which can be used in high muzzle velocity gun firing is proposed based on differential principle. This concept can effectively overcome disadvantage of traditional traveling charge which increases projectile velocity ...
A solid traveling charge concept which can be used in high muzzle velocity gun firing is proposed based on differential principle. This concept can effectively overcome disadvantage of traditional traveling charge which increases projectile velocity ...
2015, 35(1): 76-81.
doi: 10.11883/1001-1455(2015)01-0076-06
Abstract:
It is hard to performe measurement of breech system under condition of gun shooting. The idea, treating the system separately to establish shock test platform, is presented. With the design principle determined, the principle model of the shock test ...
It is hard to performe measurement of breech system under condition of gun shooting. The idea, treating the system separately to establish shock test platform, is presented. With the design principle determined, the principle model of the shock test ...
2015, 35(1): 82-88.
doi: 10.11883/1001-1455(2015)01-0082-07
Abstract:
To obtain low detonation velocity explosive, commercial attenuant was blended into the emulsion explosive. The detonation velocity of compound explosive changes from 2 550 m/s to 1 450 m/s. Through analyzing the result of mechanical properties test a...
To obtain low detonation velocity explosive, commercial attenuant was blended into the emulsion explosive. The detonation velocity of compound explosive changes from 2 550 m/s to 1 450 m/s. Through analyzing the result of mechanical properties test a...
2015, 35(1): 89-93.
doi: 10.11883/1001-1455(2015)01-0089-05
Abstract:
To study the effect of water on charge mass for demolishing steel plate, the relationship of charge mass between steel plate backing on air and backing on water is analyzed. The results show that the charge mass for backing on water is 3.68 times the...
To study the effect of water on charge mass for demolishing steel plate, the relationship of charge mass between steel plate backing on air and backing on water is analyzed. The results show that the charge mass for backing on water is 3.68 times the...
2015, 35(1): 94-100.
doi: 10.11883/1001-1455(2015)01-0094-07
Abstract:
In order to investigate the influence of secondary combustion for base flow field, a mathematical and physical model about base flow with chemical non-equilibrium for base bleed equipment is conducted. H2-CO combustion model which consists 10 compone...
In order to investigate the influence of secondary combustion for base flow field, a mathematical and physical model about base flow with chemical non-equilibrium for base bleed equipment is conducted. H2-CO combustion model which consists 10 compone...
2015, 35(1): 101-107.
doi: 10.11883/1001-1455(2015)01-0101-07
Abstract:
To explore the breakage mechanism of rocks around the blasthole and to accurately predict the size of the crushed zone in drilling and blasting, an improved calculation model for calculation the size of the crushed zone was presented. The four-region...
To explore the breakage mechanism of rocks around the blasthole and to accurately predict the size of the crushed zone in drilling and blasting, an improved calculation model for calculation the size of the crushed zone was presented. The four-region...
2015, 35(1): 108-115.
doi: 10.11883/1001-1455(2015)01-0108-08
Abstract:
The main objective of this study is to establish the quantitative relationship between overpressure and flow speed in the open-end square tube by the numerical simulation. It is found that the numbers of the peak value of overpressure and flow speed ...
The main objective of this study is to establish the quantitative relationship between overpressure and flow speed in the open-end square tube by the numerical simulation. It is found that the numbers of the peak value of overpressure and flow speed ...
2015, 35(1): 116-123.
doi: 10.11883/1001-1455(2015)01-0116-08
Abstract:
In order to explore the design method of sandwich bulkhead subjected to the close blast load of missile-warhead, experiments were carried out to investigate the damage effect of sandwich bulkhead subjected to combined impact of shock and fragments us...
In order to explore the design method of sandwich bulkhead subjected to the close blast load of missile-warhead, experiments were carried out to investigate the damage effect of sandwich bulkhead subjected to combined impact of shock and fragments us...
2015, 35(1): 124-129.
doi: 10.11883/1001-1455(2015)01-0124-06
Abstract:
The simulation of the explosion of expanded graphite bums agent requires the determination of the parameters in the JWL EOS of expanded graphite bums agent. The JWL EOS of expanded graphite bums agent are fitted through the differential evolution met...
The simulation of the explosion of expanded graphite bums agent requires the determination of the parameters in the JWL EOS of expanded graphite bums agent. The JWL EOS of expanded graphite bums agent are fitted through the differential evolution met...
2015, 35(1): 130-134.
doi: 10.11883/1001-1455(2015)01-0130-05
Abstract:
One method is offered for calculating small difference of fracture time of cylinder shell in contrast experiments. The fracture strain of cylinder shell was measured by high-speed photography, and simultaneously the velocity-time curve and displaceme...
One method is offered for calculating small difference of fracture time of cylinder shell in contrast experiments. The fracture strain of cylinder shell was measured by high-speed photography, and simultaneously the velocity-time curve and displaceme...
2015, 35(1): 135-139.
doi: 10.11883/1001-1455(2015)01-0135-05
Abstract:
Multiple explosively formed projectile (MEFP) can effectively raise the utilization rate of explosive and the hit rate. The forming process of groove type MEFP and the process of penetrating double nonseptate steel target based on LS-DYNA are studied...
Multiple explosively formed projectile (MEFP) can effectively raise the utilization rate of explosive and the hit rate. The forming process of groove type MEFP and the process of penetrating double nonseptate steel target based on LS-DYNA are studied...
2015, 35(1): 140-144.
doi: 10.11883/1001-1455(2015)01-0140-05
Abstract:
In order to examine the overloading resistance performance and adaptability of primary explosive in detonator used for fuse, several typical primary explosives' mechanical conditions, failure character and overloading resistance capability in the sim...
In order to examine the overloading resistance performance and adaptability of primary explosive in detonator used for fuse, several typical primary explosives' mechanical conditions, failure character and overloading resistance capability in the sim...
