14 The Problem of Making Practicable the Steel Target (May 1959)

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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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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Characterization and Cytotoxic Assessment of Ballistic Aerosol Particulates for Tungsten Alloy Penetrators into Steel Target Plates

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph7093313 ◽

2010 ◽

Vol 7 (9) ◽

pp. 3313-3331 ◽

Cited By ~ 6

Author(s):

Brenda I. Machado ◽

Lawrence E. Murr ◽

Raquel M. Suro ◽

Sara M. Gaytan ◽

Diana A. Ramirez ◽

...

Keyword(s):

Tungsten Alloy ◽

Steel Target

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The Porosity of Liner Effect on the Shaped Charge Jet Penetration

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.233-235.2785 ◽

2011 ◽

Vol 233-235 ◽

pp. 2785-2789

Author(s):

Yong Hong Gao ◽

Tian Sheng Liu ◽

Min Rong Huang ◽

Xiao Hui Gu

Keyword(s):

Equation Of State ◽

Penetration Depth ◽

Temperature Rise ◽

Shaped Charge ◽

Charge Diameter ◽

Steel Target ◽

Armor Steel ◽

Jet Penetration ◽

Break Up ◽

Shaped Charge Jet

Shocking temperature rise of the shaped charge with porous liner before collapse was calculated based on the Herrman equation of state. Shaped charges with 36mm charge diameter were used to fire at the 603 armor steel target, the penetration-standoff curves(P-S) of the shaped charge liner with 88.6% and 90.3%T.D were measured and compared. It is shown that proper porosity is helpful to lengthen the jet break up time and penetration depth，which is of significance for the application of porous liner.

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Research on Temperature Change and Microstructure Evolution of Bore in Steel Target Penetrated by Copper Jets

Materials Science Forum ◽

10.4028/www.scientific.net/msf.667-669.641 ◽

2010 ◽

Vol 667-669 ◽

pp. 641-646

Author(s):

Hao Chen ◽

Gang Tao

Keyword(s):

Numerical Simulation ◽

Grain Size ◽

Dynamic Recrystallization ◽

Temperature Change ◽

Microstructure Evolution ◽

Channel Wall ◽

Cooling Time ◽

Steel Target

Copper fragments are found to adhere on penetration channel wall after copper jets penetrate steel target, and the research on it is helpful to know microstructure evolution of jets in the process of penetration and cooling time. This paper is based on the observation of bore in steel target penetrated by copper jets, and uses numerical simulation to study the process of copper jets penetration, then the change of temperature and grain size of jets adhered on penetration channel wall can be gotten, and the results agree with the observation of penetration channel wall taken by SEM. From the observations of copper and steel, we can get the conclusion that copper jets are not melted but have dynamic recrystallization in the process of penetration, then copper grain size increases obviously in cooling time, and twins are formed at the same time.

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