2006 Vol. 26, No. 2
Display Method:
2006, 26(2): 97-104.
doi: 10.11883/1001-1455(2006)02-0097-08
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Abstract:
Assuming that the main effect of the voids is to reduce the area over which the stress acts in the early stage and the stress decreases to porosity-dependent value in the void coalescence stages, the stress relaxation equations in the spall process a...
Assuming that the main effect of the voids is to reduce the area over which the stress acts in the early stage and the stress decreases to porosity-dependent value in the void coalescence stages, the stress relaxation equations in the spall process a...
2006, 26(2): 105-214.
doi: 10.11883/1001-1455(2006)02-0105-10
Abstract:
The normal and oblique penetration tests of reduced-scale earth penetrating weapon(EPW) are conducted. Various projectile structures and concrete targets as well as the experimental method are designed. The impact velocities vary in the range of 620～...
The normal and oblique penetration tests of reduced-scale earth penetrating weapon(EPW) are conducted. Various projectile structures and concrete targets as well as the experimental method are designed. The impact velocities vary in the range of 620～...
2006, 26(2): 115-120.
doi: 10.11883/1001-1455(2006)02-0115-06
Abstract:
The free-surface velocity profiles of HR2, DT2 and FeMnNi under one-dimensional shock loading were measured by using double-sensitivity VISAR. Combined with the analysis of recovered fragments, dynamic behaviors and spallation phenomena of these mate...
The free-surface velocity profiles of HR2, DT2 and FeMnNi under one-dimensional shock loading were measured by using double-sensitivity VISAR. Combined with the analysis of recovered fragments, dynamic behaviors and spallation phenomena of these mate...
2006, 26(2): 121-124.
doi: 10.11883/1001-1455(2006)02-0121-04
Abstract:
Tests were performed to investigate the dynamic anomalous response of circular plates impacted by projectiles. Different response modes of the circular plates under different impact velocities have been described. Here exists anomalous response in th...
Tests were performed to investigate the dynamic anomalous response of circular plates impacted by projectiles. Different response modes of the circular plates under different impact velocities have been described. Here exists anomalous response in th...
2006, 26(2): 125-128.
doi: 10.11883/1001-1455(2006)02-0125-04
Abstract:
A void growth equation is derived for elastic-plastic deformation process by means of representative volume element (RVE). The distribution of the void number density has been numerically investigated under the condition of the same ratio of inner an...
A void growth equation is derived for elastic-plastic deformation process by means of representative volume element (RVE). The distribution of the void number density has been numerically investigated under the condition of the same ratio of inner an...
2006, 26(2): 129-133.
doi: 10.11883/1001-1455(2006)02-0129-05
Abstract:
The high-speed photography was applied to observe the expanding fracture of 45 steel cylinder shells driven by detonation.The clear photos of expanding process of steel cylinder shells were obtained. The fracture strains of the expanding steel shells...
The high-speed photography was applied to observe the expanding fracture of 45 steel cylinder shells driven by detonation.The clear photos of expanding process of steel cylinder shells were obtained. The fracture strains of the expanding steel shells...
2006, 26(2): 134-139.
doi: 10.11883/1001-1455(2006)02-0134-06
Abstract:
Interfacial friction effects between specimens and bars in SHPB technique were studied. Five materials with different features,silicon rubber, polyurethane foam, Comp.B explosive, PBX-HMX(97%) polymer bonded explosive and 6061-T6 aluminum alloy,were ...
Interfacial friction effects between specimens and bars in SHPB technique were studied. Five materials with different features,silicon rubber, polyurethane foam, Comp.B explosive, PBX-HMX(97%) polymer bonded explosive and 6061-T6 aluminum alloy,were ...
2006, 26(2): 140-144.
doi: 10.11883/1001-1455(2006)02-0140-05
Abstract:
A double-sensitivity VISAR was used to measure flyer velocity driven by JB-9014 and JOB-9003 explosives to compare their ability of acceleration. Numerical simulation was performed with the finite element hydrocode DYNA2D. Experimental and calculated...
A double-sensitivity VISAR was used to measure flyer velocity driven by JB-9014 and JOB-9003 explosives to compare their ability of acceleration. Numerical simulation was performed with the finite element hydrocode DYNA2D. Experimental and calculated...
2006, 26(2): 145-149.
doi: 10.11883/1001-1455(2006)02-0145-05
Abstract:
A new-style vibration isolator composed of wire rope isolators and dishing springs was proposed to reconstruct an explosive laboratory's base-isolated system. The relevant base-isolating projects were presented and the assembled isolators were tested...
A new-style vibration isolator composed of wire rope isolators and dishing springs was proposed to reconstruct an explosive laboratory's base-isolated system. The relevant base-isolating projects were presented and the assembled isolators were tested...
2006, 26(2): 150-155.
doi: 10.11883/1001-1455(2006)02-0150-06
Abstract:
The ballistic impact experiments for composite armor system, which combined with aluminum ahead and FRP behind,were carried out by 7.62 mm caliber uniform firearms. Experimental results and ballistic-resistance mechanism of aluminum target and FRP la...
The ballistic impact experiments for composite armor system, which combined with aluminum ahead and FRP behind,were carried out by 7.62 mm caliber uniform firearms. Experimental results and ballistic-resistance mechanism of aluminum target and FRP la...
2006, 26(2): 156-162.
doi: 10.11883/1001-1455(2006)02-0156-07
Abstract:
A compressible fluid-mixture model based on the volume fraction is introduced and a high-order piecewise parabolic method (PPM) is employed to solve the multi-fluid flow which are characterized by the Mie-Grneisen equation of state. The double shock ...
A compressible fluid-mixture model based on the volume fraction is introduced and a high-order piecewise parabolic method (PPM) is employed to solve the multi-fluid flow which are characterized by the Mie-Grneisen equation of state. The double shock ...
2006, 26(2): 163-168.
doi: 10.11883/1001-1455(2006)02-0163-06
Abstract:
The elastic-plastic code that can be used to analysize the process of the projectile impacting concrete target with high velocity has been prepared by combination of FEM with SPH algorithm. The sliding surface algorithm with artificial transportation...
The elastic-plastic code that can be used to analysize the process of the projectile impacting concrete target with high velocity has been prepared by combination of FEM with SPH algorithm. The sliding surface algorithm with artificial transportation...
2006, 26(2): 169-173.
doi: 10.11883/1001-1455(2006)02-0169-05
Abstract:
The dynamic compressive experiments were conducted on the open-cell aluminum foams prepared by infiltration process using the SHPB. The dynamic response and strain rate dependence of the aluminum foams with the relative density of 0.341~0.419 were in...
The dynamic compressive experiments were conducted on the open-cell aluminum foams prepared by infiltration process using the SHPB. The dynamic response and strain rate dependence of the aluminum foams with the relative density of 0.341~0.419 were in...
2006, 26(2): 174-178.
doi: 10.11883/1001-1455(2006)02-0174-05
Abstract:
The shocking-to-detonation transition (SDT) of insensitive high explosives (IHE) including LX-17 and ultrafine TATB was studied by using Hybrid reaction rate model and modified JWL equation of state (EOS), and phenomena of colliding diverging detonat...
The shocking-to-detonation transition (SDT) of insensitive high explosives (IHE) including LX-17 and ultrafine TATB was studied by using Hybrid reaction rate model and modified JWL equation of state (EOS), and phenomena of colliding diverging detonat...
2006, 26(2): 179-182.
doi: 10.11883/1001-1455(2006)02-0179-04
Abstract:
With an evaluation method based on damage effect on plate and over-pressure impulse criteria, the evaluation experiments of damage power of 3 kinds of FAE warheads are carried out. The TNT equivalent masses of FAE warheads are calculated. The test re...
With an evaluation method based on damage effect on plate and over-pressure impulse criteria, the evaluation experiments of damage power of 3 kinds of FAE warheads are carried out. The TNT equivalent masses of FAE warheads are calculated. The test re...
2006, 26(2): 183-187.
doi: 10.11883/1001-1455(2006)02-0183-05
Abstract:
Numerical simulation has been carried out for blasting demolition of rolling compact concrete cofferdam in crosswise direction of which belongs to the third term of the Three-gorge project using dynamic finite element program LS-DYNA. The influence o...
Numerical simulation has been carried out for blasting demolition of rolling compact concrete cofferdam in crosswise direction of which belongs to the third term of the Three-gorge project using dynamic finite element program LS-DYNA. The influence o...
2006, 26(2): 188-192.
doi: 10.11883/1001-1455(2006)02-0188-05
Abstract:
Based on the contact force characteristics in the interface between the free-standing equipment and base, a sliding-kicking up model for free-standing equipment under explosion seism impact is proposed by Matlab/SIMULINK software, and its correctness...
Based on the contact force characteristics in the interface between the free-standing equipment and base, a sliding-kicking up model for free-standing equipment under explosion seism impact is proposed by Matlab/SIMULINK software, and its correctness...
