International Journal of Precision Engineering and Manufacturing

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지

The Perforation Behavior of the Anodized AI Light Armor under High Velocity Impact

  • Sohn, Se-Won (Department of Mechanical and Aerospace Engineering, Kon-Kuk University) ;
  • Lee, Doo-Sung (Department of Mathematics, Kon-Kuk University) ;
  • Kim, Hee-Jae (Department of Weapons Engineering, Korea Military Academ) ;
  • Hong, Sung-Hee (Graduate School of Mechanical Engineering, Kon-Kuk University)
  • Published : 2003.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

In order to investigate the effect of surface treatment (Anodizing) and rolling on AI 5083-H131 alloy, under hyper velocity impact, a ballistic testing was conducted. Ballistic resistance of these materials was measured by a protection ballistic limit ($V_{50}$)' a statistical velocity with 50% probability of penetration. Perforation behavior and ballistic tolerance, described by penetration modes, were respectfully observed, by $V_{50}$ test and Projectile Through Plates (PTP) test at velocities greater than $V_{50}$. PTP tests were conducted with 0$^{\circ}$ obliquity at room temperature using 5.56mm ball projectiles. $V_{50}$ tests with 0$^{\circ}$ obliquity were also done with projectiles that were able to achieve near or complete penetration during PTP tests. Resistance to penetration, and penetration modes of Al 5052-H34 alloy were compared to those of Al 5083-H 131 alloy.

Keywords

References

  1. Manganello, S. J. and R. D. Forrest, 'Metallurgical Factors Affecting the Ballistic Behavior of Sheet Targets,' Journal of Materials, Vol. 7, No. 2, pp. 231-239,1972
  2. U.S. Army Research Laboratory, 'Military Standard, V50 Ballistic Test for Armor, MIL-STD-662E,' Dept. of the Navy, Defense Printing Service, Philadelphia, PA,1984
  3. U.S. Army Test Evaluation Command, 'U.S. Army Test Operations Procedure 2-2-710 Ballistic Test for Armor,' A137973, U.S. Army Test Evaluation Command, Aberdeen Proving Ground, MD 21005
  4. Backman, M. E. and Goldsmith, W., 'The Mechanics of Penetration of Projectiles into Targets,' International Journal of Engineering Science, Vol. 16, pp. 1-99, 1978 https://doi.org/10.1016/0020-7225(78)90002-2
  5. Zukas, J. A., Nicholas, T., Swift, H. F, Greszczuk, L. B. and Curran, D. R., Penetration and Perforation of Solid, Impact Dynamics, Zukas, J. A., et aI., John Wiley and Sons, New York, pp. 155-183, 1982
  6. Jang-J, Park-R, Yun-Y, Park-J and Kim-H, 'Failure of Ceramic/Fiber-Reinforced Plastic Composites Under Hypervelocity Impact Loading,' Journal of Materials Science, Vol. 32, No.1, pp. 23-33.1997 https://doi.org/10.1023/A:1018550411227
  7. Crouch, I. G., 'Metallic Armor-from Cast Aluminum alloys to High-Strength Sheets,' Materials Forum, Vol. 12, pp. 31-37, 1988
  8. U.S. Army Research Laboratory, 'Military Standard, V50 Ballistic Test for Armor, MIL-STD-662E,' Dept. of the Navy, Defense Printing Service, Philadelphia, PA,1984
  9. Kim, C.-H., 'Fractographic Studies in Ballistically Damaged Polycrystalline Alumina,'Journal of the Korean Ceramic Society, Vol. 15, No.3, pp 127-134, 1978
  10. Orphal DL, Franzen RR, Piekutowski AJ, Forrestal MJ, 'Penetration of Confined Aluminum nitride targets by Tungsten rods at 1.5-4.5km/s,' International J. of Impact Eng., Vol. 18, pp. 355-386, 1996 https://doi.org/10.1016/0734-743X(95)00045-C
  11. Forrestal MJ, Okajima K, Luk VK, 'Penetration of 6061-T651 Aluminum targets with Rigid long rods,' ASME J Appl Mech, Vol. 55, pp. 755-760,1988 https://doi.org/10.1115/1.3173718
  12. Nair-SV, Subramaniam-A, Goettler-LA, 'Fracture-Resistance of Polyblends and Polyblend Matrix Composites .2. Role of the Rubber Phase in Nylon 6,6/ABS Alloys,' Journal of Materials Science, Vol. 32, No. 20, pp. 5347-5354. 1997 https://doi.org/10.1023/A:1018670928878
  13. John F. Chinella and Martin G. H. Wells, 'Ballistic Penetration and Fracture Modes of an austempered ductile iron and AISI 4140 Steels,' Structures Under Extreme Loading Conditions- 1998, ASME, PVP-Vol. 361, pp. 37-53,1998
  14. Sohn, S. W., Kim, H. J., Hwang, D. Y. and Hong, S. H., 'A Study on the fracture behavior of surface hardening treated aluminum alloy under the high velocity impact,' Proceeding of the Korean Society of Precision Engineering, pp. 784-789, 2001
  15. Sohn, S. W., Kim, H. J., Hwang, D. Y. and Hong, S. H., 'A Study on the fracture behavior of surface treated A1 5083-H131 alloy under the high velocity impact,' Proceeding of the Korean Society of Precision Engineering, pp. 820-824, 2001
  16. Sohn, S. W., Lee, D. S., Kim, Y. T. and Hong, S. H., 'A Study on perforation behavior of Aluminum 5052-H34 alloy by high velocity impact,' Proceeding of Korean Society of Mechanical Engineers Part A, pp. 174-179, 2001
  17. Sohn, S. W., Kim, H. J., Kim, Y. T. and Hong, S. H., 'A Study on the resistance of surface hardening treated Aluminum, Titanium alloy under the high velocity impact,' Proceedings of the Korean Society of Precision Engineering, pp. 852-855,2002