A Unified Formula of Critical Penetration Velocity for Natural and Preformed Fragments Penetrating Into Steel Target

In order to study dynamic response of metal, this paper makes use of theoretical formula to investigate changes of temperature and grain size on steel target after the penetration of copper jet based on data gathered from the experiments. Deformed target penetrated by copper jet could be divided into superplastic deformation zone and normal deformation zone according to the different microstructure. Temperature distribution of each deformation zones is in turn calculated by two constitutive equations. The results indicate that areas with high temperature concentrate on the narrow zone near the penetrated channel. Then, the calculation of grain size conforms to the observation. It is obviously proven that the method used in this paper is trustworthy for calculating the changes of temperature and grain size of target caused by penetration.

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Influence of energy parameters of shock pulse generator on the pipe penetration velocity in soil

Journal of Mining Science ◽

10.1134/s1062739114030119 ◽

2014 ◽

Vol 50 (3) ◽

pp. 491-500 ◽

Cited By ~ 3

Author(s):

I. V. Tishchenko ◽

V. V. Chervov

Keyword(s):

Pulse Generator ◽

Shock Pulse ◽

Energy Parameters ◽

Penetration Velocity

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Prediction of sinkage and rolling resistance for off-the-road vehicles considering penetration velocity

Journal of Terramechanics ◽

10.1016/0022-4898(91)90015-x ◽

1991 ◽

Vol 28 (4) ◽

pp. 339-347 ◽

Cited By ~ 13

Author(s):

M. Grahn

Keyword(s):

Rolling Resistance ◽

Road Vehicles ◽

The Road ◽

Penetration Velocity

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Investigation on penetration model of shaped charge jet in water

Modern Physics Letters B ◽

10.1142/s0217984915502681 ◽

2016 ◽

Vol 30 (02) ◽

pp. 1550268 ◽

Cited By ~ 1

Author(s):

Jinwei Shi ◽

Xingbai Luo ◽

Jinming Li ◽

Jianwei Jiang

Keyword(s):

Numerical Simulation ◽

Theoretical Model ◽

Model Simulation ◽

Theoretical Models ◽

Theoretical Research ◽

Water Medium ◽

Simulation Results ◽

Jet Penetration ◽

The Impact ◽

Penetration Velocity

To analyze the process of jet penetration in water medium quantitatively, the properties of jet penetration spaced target with water interlayer were studied through test and numerical simulation. Two theoretical models of jet penetration in water were proposed. The theoretical model 1 was established considering the impact of the shock wave, combined with the shock equation Rankine–Hugoniot and the virtual origin calculation method. The theoretical model 2 was obtained by fitting theoretical analysis and numerical simulation results. The effectiveness and universality of the two theoretical models were compared through the numerical simulation results. Both the models can reflect the relationship between the penetration velocity and the penetration distance in water well, and both the deviation and stability of theoretical model 1 are better than 2, the lower penetration velocity, and the larger deviation of the theoretical model 2. Therefore, the theoretical model 1 can reflect the properties of jet penetration in water effectively, and provide the reference of model simulation and theoretical research.

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Novel KE penetrator performance against a steel/ceramic/steel target at 0° over the velocity range 1800 to 2900 m/s

International Journal of Impact Engineering ◽

10.1016/s0734-743x(01)00099-9 ◽

2001 ◽

Vol 26 (1-10) ◽

pp. 475-486 ◽

Cited By ~ 5

Author(s):

N.J. Lynch ◽

S.J. Bless ◽

C. Brissenden ◽

D. Berry ◽

B. Pedersen

Keyword(s):

Velocity Range ◽

Steel Target

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