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Journal of Applied Mechanics | Volume 77 | Issue 5 | Research Paper
RESEARCH PAPERS: Terminal Ballistics

The Conception of the Segmented Kinetic Energy Penetrators for Tank Guns

[+] Author and Article Information
Mariusz Magier

 Military Institute of Armament Technology, Prymasa Wyszynskiego 7 Street, Zielonka 05-220, Polandmagier@witu.mil.pl

J. Appl. Mech 77(5), 051802 (Jun 10, 2010) (10 pages) doi:10.1115/1.4001714 History: Received September 01, 2009; Revised May 04, 2010; Posted May 05, 2010; Published June 10, 2010; Online June 10, 2010
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In this paper we present possibilities of increasing the depth of penetration through a steel plate by using segmented kinetic energy penetrators. Conclusions about the possibilities of increasing the penetration depth were formulated based on the critical review of the literature, simulations, and firing test results. A new concept called “forced segmented penetration,” where applied penetrator is composed of two tungsten alloy pieces connected by a screwed steel muff, is presented in this paper. The axial deformation of the connecting muff during the penetration process results in a decrease in the distance between tungsten segments. For this reason the rear segment can hit the front segment to give it some additional kinetic energy, enhancing the penetration depth. Such type of segmented penetration phenomena was not presented earlier. The numerical analyses of the segmented penetrator of the new design are presented in this paper.
Copyright © 2010 by American Society of Mechanical Engineers
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Figures

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+Components of the APFSDS-T projectile
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Components of the APFSDS-T projectile
Figure 1

Components of the APFSDS-T projectile

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+The APFSDS-T projectile at the moment of discarding sabot
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The APFSDS-T projectile at the moment of discarding sabot
Figure 2

The APFSDS-T projectile at the moment of discarding sabot

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+The rod penetrator with the ballistic cap and the fin stabilizer
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The rod penetrator with the ballistic cap and the fin stabilizer
Figure 3

The rod penetrator with the ballistic cap and the fin stabilizer

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+The monolithic and segmented penetrators
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The monolithic and segmented penetrators
Figure 4

The monolithic and segmented penetrators

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+Projectile with segmented penetrator and discarding sabot (ISL)
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Projectile with segmented penetrator and discarding sabot (ISL)
Figure 5

Projectile with segmented penetrator and discarding sabot (ISL)

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+Rod-tube segmented penetrator
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Rod-tube segmented penetrator
Figure 6

Rod-tube segmented penetrator

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+Projectile with split-rod segmented penetrator
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Projectile with split-rod segmented penetrator
Figure 7

Projectile with split-rod segmented penetrator

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+Extended segmented telescopic rod
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Extended segmented telescopic rod
Figure 8

Extended segmented telescopic rod

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+The components of the projectile with segmented penetrator
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The components of the projectile with segmented penetrator
Figure 9

The components of the projectile with segmented penetrator

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+Subcaliber projectile with segmented penetrator (MIAT-Poland)
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Subcaliber projectile with segmented penetrator (MIAT-Poland)
Figure 10

Subcaliber projectile with segmented penetrator (MIAT-Poland)

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+The numerical models of the penetrators: (a) monolithic W1, (b) segmented W2
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The numerical models of the penetrators: (a) monolithic W1, (b) segmented W2
Figure 11

The numerical models of the penetrators: (a) monolithic W1, (b) segmented W2

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+The time sequences of equivalent plastic strain for variant W1 (monolithic penetrator)
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The time sequences of equivalent plastic strain for variant W1 (monolithic penetrator)
Figure 12

The time sequences of equivalent plastic strain for variant W1 (monolithic penetrator)

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+The time sequences of equivalent plastic strain for variant W2 (segmented penetrator)
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The time sequences of equivalent plastic strain for variant W2 (segmented penetrator)
Figure 13

The time sequences of equivalent plastic strain for variant W2 (segmented penetrator)

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+120 mm APFSDS-T round with segmented penetrator
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120 mm APFSDS-T round with segmented penetrator
Figure 14

120 mm APFSDS-T round with segmented penetrator

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+120 mm ballistic gun
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120 mm ballistic gun
Figure 15

120 mm ballistic gun

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+The 27.5 cm thick steel plate penetrated at an angle of 56°36′ by two-pieces penetrators (left-intake holes, right-outlet holes)
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The 27.5 cm thick steel plate penetrated at an angle of 56°36′ by two-pieces penetrators (left-intake holes, right-outlet holes)
Figure 16

The 27.5 cm thick steel plate penetrated at an angle of 56°36′ by two-pieces penetrators (left-intake holes, right-outlet holes)

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+The time sequences of equivalent plastic strain for W3 variant
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The time sequences of equivalent plastic strain for W3 variant
Figure 17

The time sequences of equivalent plastic strain for W3 variant

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+The time sequences of equivalent plastic strain for W4 variant
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The time sequences of equivalent plastic strain for W4 variant
Figure 18

The time sequences of equivalent plastic strain for W4 variant

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+The time sequences of equivalent plastic strain for W5 variant
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The time sequences of equivalent plastic strain for W5 variant
Figure 19

The time sequences of equivalent plastic strain for W5 variant

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+The time sequences of equivalent plastic strain in magnification for connecting muff in W5 variant—the phenomena of the forced segmented penetration
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The time sequences of equivalent plastic strain in magnification for connecting muff in W5 variant—the phenomena of the forced segmented penetration
Figure 20

The time sequences of equivalent plastic strain in magnification for connecting muff in W5 variant—the phenomena of the forced segmented penetration

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