Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
권호 표지
DOI QR코드

DOI QR Code

Scale Effects of Warhead on Concrete Penetration

탄두의 콘크리트 관통 시 스케일 영향

  • Kim, Seokbong (The 4th Research and Development Institute, Agency for Defense Development) ;
  • Lee, Changsoo (The 4th Research and Development Institute, Agency for Defense Development) ;
  • Yoo, Yohan (The 4th Research and Development Institute, Agency for Defense Development)
  • 김석봉 (국방과학연구소 제4기술연구본부) ;
  • 이창수 (국방과학연구소 제4기술연구본부) ;
  • 유요한 (국방과학연구소 제4기술연구본부)
  • Received : 2016.06.27
  • Accepted : 2017.02.24
  • Published : 2017.04.05
Download PDF
⟨ Previous Next ⟩

Abstract

This paper deals with the scale effects of warhead on concrete penetration. We investigated the scale effects using finite element analysis and Young's penetration equation. As the scale of penetration test decreases, the strain rate effects of target increases, and then strength of concrete target increases. This means the residual velocity and penetration depth of warhead decreases as the test model size decreases. Young's penetration equations are transformed with various penetrator mass and scale cases as a function of scale ratio. Penetration distance and residual velocity are not simply changed by the geometric scaling law.

Keywords

References

  1. C. E. Anderson Jr, S. A. Mullin and C. J. Kuhlman, "Computer Simulation of Strain-rate Effects in Replica Scale Model Penetration Experiments," Int. J. Impact Eng., Vol. 13, No. 1, pp. 35-52, 1993. https://doi.org/10.1016/0734-743X(93)90107-I
  2. M. J. Forrestal, D. J. Frew, J. P. Hickerson and T. A. Rohwer, "Penetration of Concrete Targets with Deceleration-time Measurements," Int. J. Impact Eng., Vol. 28, pp. 479-497, 2003. https://doi.org/10.1016/S0734-743X(02)00108-2
  3. D. J. Frew, M. J. Forrestal and J. D. Cargile, "The Effect of Concrete Target Diameter on Projectile Deceleration and Penetration Depth," Int. J. Impact Eng., Vol. 32, pp. 1584-1594, 2006. https://doi.org/10.1016/j.ijimpeng.2005.01.012
  4. L. J. Malvar, J. E. Crawford, J. W. Wesevich and D. Simons, "A Plasticity Concrete Material Model for DYNA3D," Int. J. Impact Eng., Vol. 19, No. 9/10, pp. 847-873, 1997. https://doi.org/10.1016/S0734-743X(97)00023-7
  5. L. J. Malvar and C. A. Ross, "Review of Strain Rate Effects for Concrete in Tension," ACI Materials J. Vol. 95, No. 6, pp. 735-739, 1998.
  6. M. E. Backman and W. Goldsmith, "The Mechanics of Penetration of Projectiles into Targets," Int. J. of Eng. Sci., Vol. 16, No. 1, pp. 1-99. 1978. https://doi.org/10.1016/0020-7225(78)90002-2
  7. J. T. Gomez and A. Shukla, "Multiple Impact Penetration of Semi-infinite Concrete," Int. J. Impact Eng., Vol. 25, No. 10, pp. 965-979, 2001. https://doi.org/10.1016/S0734-743X(01)00029-X
  8. Q. M. Li and X. W. Chen, "Dimensionless Formulae for Penetration Depth of Concrete Target Impacted by a Non-deformable Projectile," Int. J. Impact Eng., Vol. 28, No. 1, pp. 93-116, 2003. https://doi.org/10.1016/S0734-743X(02)00037-4
  9. C. Y. Tham, "Numerical and Empirical Approach in Predicting the Penetration of a Concrete Target by an Ogive-nosed Projectile," Finite Elements in Analysis and Design, Vol. 42, No. 14, pp. 1258-1268, 2006. https://doi.org/10.1016/j.finel.2006.06.011
  10. C. W. Young, "The Development of Empirical Equations for Predicting Depth of an Earth Penetrating Projectile," SC-DR-67-60, Sandia National Laboratories, 1967.
  11. C. W. Young, "Empirical Equations for Predicting Penetration Performance in Layered Earth Materials for Complex Penetrator Configurations," SC-DR-72-0523, Sandia National Laboratories, 1972.
  12. C. W. Young, "Equations for Predicting Earth Penetration by Projectiles: An Update, SAND88-0013," Sandia National Laboratories, 1988.
  13. C. W. Young, "Penetration Equations," SAND97-2426, Sandia National Laboratories, 1997.