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http://dx.doi.org/10.3795/KSME-A.2013.37.8.953

Study of Hypervelocity Penetration Characteristics of Segmented Tungsten Penetrator  

Jo, Jong Hyun (Dept. of Mechanical Design Engineering, Chungnam Nat'l Univ.)
Lee, Young Shin (Dept. of Mechanical Design Engineering, Chungnam Nat'l Univ.)
Kim, Jae Hoon (Dept. of Mechanical Design Engineering, Chungnam Nat'l Univ.)
Bae, Yong Woon (Agency for Defense Development)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.37, no.8, 2013 , pp. 953-960 More about this Journal
Abstract
This study aimed to investigate the penetration characteristics of a segmented penetrator with normal and inclined angles. The length to diameter ratio (L/D) of the segmented penetrator was varied as 1.0, 0.5, and 0.25. Moreover, impact velocities of 1.5, 2.0, and 2.5 km/s and inclination angles of $15^{\circ}$, $30^{\circ}$, and $45^{\circ}$ were successively applied. The AUTODYN-3D code was used to simulate the penetration performance of the segmented penetrator. The results show that the penetration performance of the segmented penetrator with steel plates was obviously higher than that of the corresponding continuous penetrator with steel plates. The outstanding penetration performance of the segmented penetrator can be observed when the impact velocity was 2.0 km/s and L/D = 1. In this case, the penetration performance of the segmented penetrator was 7% higher than that of the corresponding continuous penetrator. This trend was attributable to the interaction between the reactive plate and the projectile. The extent of the interaction relies on the relative velocities of the plate and projectiles, inclination angle, and number of segmented penetrators. It was proven that the penetration performance of the segmented penetrator can be improved by increasing the impact velocity, number of segmented penetrators between segments, and penetrator length.
Keywords
Segmented Penetrator; Length to Diameter Ratio(L/D); Penetration;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Bjerke, T. W., Zukas, J. A. and Kimsey, K. D., 1992, "Penetration Performance of Disk Shaped Penetrators," International Journal of Impact Engineering, Vol.12, No.2, pp.263-280.   DOI   ScienceOn
2 Franzen, R. R., Walker, J. D., Orphal, D. L. and Anderson, C. E., 1994, "An Upper Limit for the Penetration Performance of Segmented Rods with Segment-L/D   DOI   ScienceOn
3 Orphal, D. L., Anderson. C. E., Franzen, R. R. and Babcock, S. M., 1995, "Variation of Crater Geometry with Projectile L/D for L/D   DOI   ScienceOn
4 Normandia, M. J. and Lee, M., 1999, "Penetration Performance of Multiple Segmented-rods at 2.6 km/s," International Journal of Impact Engineering, Vol.23, No.1, pp.675-686.   DOI   ScienceOn
5 Herrmarm, W. and Wilbeck, J. S., 1987, "Review of Hypervelocity Penetration Theories," International Journal of Impact Engineering, Vol.5, No.1-4, pp.307-322.   DOI   ScienceOn
6 De Rosset, W. S. and Sherrick, T., 1996, "Segmented Rod Performance at Ordnance Velocity," ARL-MR- 291 U.S. Army Research Laboratory, Aberdeen Proving Ground, MD.
7 Hauver, E. and Melani, A., 1990, "Behavior of Segmented Rods During Penetration," BRL-TR-3129 Ballistic Research Laboratory, Aberdeen Proving Ground, MD.
8 Hohler, V. and Stilp, A., 1990, "Penetration Performance of Segmented Rods at Different Spacing: Comparison with Homogeneous Rods at 2.5-3.Skin/s," Proc. 12th Int. Symp. Ballistic, San Antonio.
9 Lee, M., 2001, "A Numerical Comparison of the Ballistic Performance of Unitary and Segmented-Rods against Stationary and Moving Oblique Plates," International Journal of Impact Engineering, Vol.26, No. 1-10, pp.399-407.   DOI   ScienceOn
10 Schwartz. W., 1990, "Reactive Armor," Proc. 10th Int. Seminar on Defense Science and Technology, pp.73-77.
11 Weihrauch, G. and Wollmann, E., 1993, "Segmented Penetrators," Propellants, Explosive, Pyrotechnics, Vol.18, No. 5, pp.270-274.   DOI   ScienceOn
12 Jo, J. H., Lee, Y. S., Kim, J. H. and Bae, Y. W., 2012, "A Study on Hypervelocity Penetration Characteristics of Tungsten Cylindrical Penetrator," Proceedings of the KSME 2012 Fall conference of the KSME, pp.2131-2137.
13 Zukas J. A., 1990, High Velocity Impact Dynamics. New York: Wiley.
14 WWW1.ANSYS.COM,2011, "ANSYS/AUTODYN- 3D," 12.1 User's Manual, Material Models Chapter.
15 Jo, J. H. and Lee, Y. S., 2012, "Numerical Simulation of Failure Mechanism of PELE Perforating Thin Target Plates," Trans. Korean Soc. Mech. Eng. A, Vol.36, No.12, pp.1577-1583.   과학기술학회마을   DOI   ScienceOn
16 Jo, J. H., Lee, Y. S. and Jin, H. L., 2012, "Numerical Simulation of Steel/Kevlar Hydrid Composite Helmet subjected to Ballistic Impact," Trans. Korean Soc. Mech. Eng. A, Vol.36, No.12, pp.1569-1575.   DOI   ScienceOn
17 Charters, A. C., Menna, T. L. and Piekutowski, A. J., 1990, "Penetration Dynamics of Rods from Direct Ballistic Tests of Advanced Armor Components at 2-3 km/s," International Journal of Impact Engineering, Vol.10, pp.93-106.   DOI   ScienceOn