DOI QR코드

DOI QR Code

Penetration resistance of steel fiber reinforced concrete containment structure to high velocity projectile

  • Teng, Tso-Liang (Department of Mechanical Engineering, Da-Yeh University) ;
  • Chu, Yi-An (Chung-Shan Institute of Science and Technology) ;
  • Shen, Bor-Cherng (Chung-Shan Institute of Science and Technology)
  • 투고 : 2006.08.16
  • 심사 : 2008.11.05
  • 발행 : 2008.12.25

초록

Containment structures not only are leak-tight barriers, but also may be subjected to impacts caused by tornado-generated projectiles, aircraft crashes or the fragments of missile warhead. This paper presents the results of an experimental study of the impact resistance of steel fiber-reinforced concrete against 45 g projectiles at velocity around 2500 m/s. An explosively formed projectile (EFP) was designed to generate an equivalent missile fragment. The formation and velocity of EFP are measured by flash x-ray. A switch made of double-layered thin copper sheets controlled the exposure time of each flash x-ray. The influence of the fiber volume fraction on the crater diameter of concrete slab and the residual velocity of the projectile were studied. The residual velocity of the projectile decreased as the fiber volume fractions increased. In this work, the residual velocity of the projectile was to 44% that of plain concrete when the fiber volume fraction exceeded 1.5%. Based on the present finding, steel fiber reinforced concrete with the fiber volume fraction exceeding 1.5% appear to be more efficient in protection against high velocity fragment impact.

키워드

참고문헌

  1. ACI Committee 544.1R-96 (1997), "Fiber reinforced concrete".
  2. Almansa, E.M. and Canovas, M.F. (1999) "Behavior of normal and steel fiber-reinforced concrete under impact of small projectiles", Cement Concrete Res. 29, 1807-1814. https://doi.org/10.1016/S0008-8846(99)00174-X
  3. Analysis Laboratory, Ballistic (1961), "The resistance of various metallic materials to perforation by steel fragments; empirical relationships for fragment residual velocity and residual weight", Project THOR Technical report No. 47, April.
  4. Anderson, W.F., J. Watson, A., and Armstrong, P.J. (1984), "Fiber reinforced concretes for the protection of structures against high velocity impact", In: Morton J, editor. Proceeding of the International Conference on Structural Impact and Crashworthiness, London: Imperical College, 687-695.
  5. Dancygier, A.N. and Yankelevsky, D.Z. (1996), "High strength concrete response to hard projectile impact", Int. J. Impact. Eng., 18(6), 583-599. https://doi.org/10.1016/0734-743X(95)00063-G
  6. Gao, J., Sun, W., and Morino, K. (1997), "Mechanical properties of steel fiber-reinforced, high-strength, lightweight concrete", Cement Concrete Comp., 19, 307-313. https://doi.org/10.1016/S0958-9465(97)00023-1
  7. Leppanen, J. (2005), "Experiments and numerical analysis of blast and fragment impacts on concrete", Int. J. Impact. Eng., 31, 843-860. https://doi.org/10.1016/j.ijimpeng.2004.04.012
  8. Lloyd, R.M. (1998), "Conventional warhead systems physics and engineering design", Progress in Astronautics and Aeronautics, 179.
  9. Luccioni, B.M. and Luege, M. (2006), "Concrete pavement slab under blast loads", Int. J. Impact. Eng., 32, 1248-1266. https://doi.org/10.1016/j.ijimpeng.2004.09.005
  10. Luo, Xin, Sun, Wei and Chan, Y.N. (2000), "Characteristics of high-performance steel fiber-reinforced concrete subject to high velocity impact", Cement Concrete Res., 30, 907-914, https://doi.org/10.1016/S0008-8846(00)00255-6
  11. Mindess, S., Bentur, A., Yan, C., and Vondran, G. (1989), "Impact resistance of concrete containing both conventional steel reinforcement and fibrillated polypropylene fibers", ACI Mater. J., 86(6), 545-549.
  12. Ray, I., Chakraborty, A.K., and Sengupta, B. (2006), "High-performance concrete for containment structures", Nucl. Eng. Des., 236, 1041-1048. https://doi.org/10.1016/j.nucengdes.2005.10.005
  13. Wafa, F.F. and Ashour, S.A. (1992), "Mechanical properties of high-strength fiber reinforced concrete", ACI Mater. J., 89(5), 449-455.
  14. Walters, W.P. and Zukas, J.A. (1989), "Fundamentals of shaped charges", John Wiely and Sons, New York.
  15. Zhang, M.H., Shim, V.P.W., Lu, G., and Chew, C.W. (2005), "Resistance of high-strength concrete to projectile impact", Int. J. Impact. Eng., 31, 825-841. https://doi.org/10.1016/j.ijimpeng.2004.04.009
  16. Zukas, J.A. and Walters, W. P. (1998), "Explosive effects and applications", Springer-Verlag New York, Inc.

피인용 문헌

  1. Combined effects of penetration and explosion on damage characteristics of a mass concrete target vol.20, pp.4, 2008, https://doi.org/10.21595/jve.2017.18522