2014 Vol. 34, No. 6
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2014, 34(6): 641-657.
doi: 10.11883/1001-1455(2014)06-0641-17
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Abstract:
This paper briefly reviews the development and application of the Hopkinson pressure bar experimental technique in China.The research works on the SHPB experimental techniques related to metal, polymer, composite, brittle material, concrete, soft mat...
This paper briefly reviews the development and application of the Hopkinson pressure bar experimental technique in China.The research works on the SHPB experimental techniques related to metal, polymer, composite, brittle material, concrete, soft mat...
2014, 34(6): 658-666.
doi: 10.11883/1001-1455(2014)06-0658-09
Abstract:
The finite element code, AUTODYN, was used to numerically simulate the propagation of the shock wave in the protective structure with holes under contact explosive loads.The overpressuretime curves were obtained for the shock waves around the orifice...
The finite element code, AUTODYN, was used to numerically simulate the propagation of the shock wave in the protective structure with holes under contact explosive loads.The overpressuretime curves were obtained for the shock waves around the orifice...
2014, 34(6): 667-672.
doi: 10.11883/1001-1455(2014)06-0667-06
Abstract:
Based on dynamic triaxial passive loading techniques, a new passive confined SHPB experiment technique was designed for measuring the responses of pressure and volume strain of materials with bulk modulus of giga pascal or less.In the experiment desi...
Based on dynamic triaxial passive loading techniques, a new passive confined SHPB experiment technique was designed for measuring the responses of pressure and volume strain of materials with bulk modulus of giga pascal or less.In the experiment desi...
2014, 34(6): 673-678.
doi: 10.11883/1001-1455(2014)06-0673-06
Abstract:
A new technique for testing dynamic spherical indentation of materials was proposed.It was implemented by putting a WC alloy ball between two specimens, one of which was bonded with the input bar and the other was bonded with the output bar.Then the ...
A new technique for testing dynamic spherical indentation of materials was proposed.It was implemented by putting a WC alloy ball between two specimens, one of which was bonded with the input bar and the other was bonded with the output bar.Then the ...
2014, 34(6): 679-684.
doi: 10.11883/1001-1455(2014)06-0679-06
Abstract:
Aimed to two kinds of TiNi alloy, that is, initial shape-memory effect TiNi alloy and pseudo-elastic TiNi alloy, the transient temperatures at the surfaces of the TiNi alloy specimens were measured during dynamic deformation in real time by using the...
Aimed to two kinds of TiNi alloy, that is, initial shape-memory effect TiNi alloy and pseudo-elastic TiNi alloy, the transient temperatures at the surfaces of the TiNi alloy specimens were measured during dynamic deformation in real time by using the...
2014, 34(6): 685-690.
doi: 10.11883/1001-1455(2014)06-0685-06
Abstract:
In order to investigate the influence of the transition layer on the shear strength of the Zr/steel explosive clad plate and obtain the rational impact parameters of explosive welding, the difference of the Zr/steel and Zr/Ti/steel clad plates was co...
In order to investigate the influence of the transition layer on the shear strength of the Zr/steel explosive clad plate and obtain the rational impact parameters of explosive welding, the difference of the Zr/steel and Zr/Ti/steel clad plates was co...
2014, 34(6): 691-700.
doi: 10.11883/1001-1455(2014)06-0691-10
Abstract:
Aimed at the whipping response of submarines to underwater explosion, the later approximation of the second－order doubly－asymptotic approximation(DAA2)based on the wave equation was deduced in time domain, and the inner field problem of the double cy...
Aimed at the whipping response of submarines to underwater explosion, the later approximation of the second－order doubly－asymptotic approximation(DAA2)based on the wave equation was deduced in time domain, and the inner field problem of the double cy...
2014, 34(6): 701-708.
doi: 10.11883/1001-1455(2014)06-0701-08
Abstract:
Primary waves were chosen as the study object, then an analytical solution for the dynamic response of tunnels with composite lining in infinite media under blasting seismic waves was deduced based on the wave function expansion method.According to t...
Primary waves were chosen as the study object, then an analytical solution for the dynamic response of tunnels with composite lining in infinite media under blasting seismic waves was deduced based on the wave function expansion method.According to t...
2014, 34(6): 709-715.
doi: 10.11883/1001-1455(2014)06-0709-07
Abstract:
Based on two-dimensional Euler equations associated with chemical reactions, gaseous detonation of 2H2/O2/Ar mixture propagating through a T-tube was investigated numerically.The second-order additive semi-implicit Runge-Kutta methods and the fifth-o...
Based on two-dimensional Euler equations associated with chemical reactions, gaseous detonation of 2H2/O2/Ar mixture propagating through a T-tube was investigated numerically.The second-order additive semi-implicit Runge-Kutta methods and the fifth-o...
2014, 34(6): 716-722.
doi: 10.11883/1001-1455(2014)06-0716-07
Abstract:
Based on the impact dynamics and the basic theory of explosive welding, the material point method was applied to study the wave formation at the compounded interface by explosive welding, and the corresponding three－dimensional numerical simulations ...
Based on the impact dynamics and the basic theory of explosive welding, the material point method was applied to study the wave formation at the compounded interface by explosive welding, and the corresponding three－dimensional numerical simulations ...
2014, 34(6): 723-729.
doi: 10.11883/1001-1455(2014)06-0723-07
Abstract:
According to the analysis of the tandem warhead characteristics, we proposed a new tandem shaped charge structure composed of two explosively-formed projectile charges with the same structure.By using the finite element software LS-DYNA, the effect o...
According to the analysis of the tandem warhead characteristics, we proposed a new tandem shaped charge structure composed of two explosively-formed projectile charges with the same structure.By using the finite element software LS-DYNA, the effect o...
2014, 34(6): 730-735.
doi: 10.11883/1001-1455(2014)06-0730-06
Abstract:
The three explosion events recorded by Mudanjiang and Baijitong sesimic stations on October 9, 2006, May 25, 2009 and Feburary 12, 2013 were analyzed, respectively.Both the stations belong to Global Sesimic Network.The energy ratios of the three even...
The three explosion events recorded by Mudanjiang and Baijitong sesimic stations on October 9, 2006, May 25, 2009 and Feburary 12, 2013 were analyzed, respectively.Both the stations belong to Global Sesimic Network.The energy ratios of the three even...
2014, 34(6): 736-741.
doi: 10.11883/1001-1455(2014)06-0736-06
Abstract:
The failure mechanism of throttling rings in gun recoil brakes was experimentally researched from the micro level.In the experimental research, the scrapped throttling rings and recoil solutions from a repair facility were chosen as the research obje...
The failure mechanism of throttling rings in gun recoil brakes was experimentally researched from the micro level.In the experimental research, the scrapped throttling rings and recoil solutions from a repair facility were chosen as the research obje...
2014, 34(6): 742-747.
doi: 10.11883/1001-1455(2014)06-0742-06
Abstract:
To examine the rate-dependent properties of aluminum foams, three-dimensional random spherical cell models were constructed to simulate the microstructures of aluminum foams, and the dynamic deformations of aluminum foams at the strain rates of 10-10...
To examine the rate-dependent properties of aluminum foams, three-dimensional random spherical cell models were constructed to simulate the microstructures of aluminum foams, and the dynamic deformations of aluminum foams at the strain rates of 10-10...
2014, 34(6): 748-753.
doi: 10.11883/1001-1455(2014)06-0748-06
Abstract:
To predict the peak pressure in the explosion－vented vessel with a venting duct, the influencing factors on the peak pressure were abstracted from the experimental data in literatures.The abstracted factors were deployed as the inputs to the support ...
To predict the peak pressure in the explosion－vented vessel with a venting duct, the influencing factors on the peak pressure were abstracted from the experimental data in literatures.The abstracted factors were deployed as the inputs to the support ...
2014, 34(6): 754-758.
doi: 10.11883/1001-1455(2014)06-0754-05
Abstract:
Small-scale chemical explosion simulation experiments were carried out to investigate the leakage time and percentage of CO gas from different-scale chemical explosions in rock.The different-scale chemical explosions meted a scaling relation.The rese...
Small-scale chemical explosion simulation experiments were carried out to investigate the leakage time and percentage of CO gas from different-scale chemical explosions in rock.The different-scale chemical explosions meted a scaling relation.The rese...
2014, 34(6): 759-763.
doi: 10.11883/1001-1455(2014)06-0759-05
Abstract:
The explosion of the high pressure, dense gas (SF6) in a circular shape was explored with the use of large eddy simulation (LES), the hybrid high-order schemes were employed to solve the LES equations.The simulated results show that while the shock w...
The explosion of the high pressure, dense gas (SF6) in a circular shape was explored with the use of large eddy simulation (LES), the hybrid high-order schemes were employed to solve the LES equations.The simulated results show that while the shock w...
2014, 34(6): 764-768.
doi: 10.11883/1001-1455(2014)06-0764-05
Abstract:
Aiming at the shortcoming that the measurement of part points can not acquire the propagation process of shock wave overall and the limitations of the empirical formulae for overpressure, this paper utilizes the weighted generalized inversion to inve...
Aiming at the shortcoming that the measurement of part points can not acquire the propagation process of shock wave overall and the limitations of the empirical formulae for overpressure, this paper utilizes the weighted generalized inversion to inve...
