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

  • 제18권2호
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  • Pages.154-159
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  • 2015
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  • 1598-9127(pISSN)
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  • 2636-0640(eISSN)
한국군사과학기술학회 (The Korea Institute of Military Science and Technology)
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침투시험에서의 콘크리트 표적크기 영향 분석

Concrete Target Size Effect on Projectile Penetration

  • 김석봉 (국방과학연구소 제4기술연구본부) ;
  • 유요한 (국방과학연구소 제4기술연구본부)
  • Kim, Seokbong (The 4th Research and Development Institute, Agency for Defense Development) ;
  • Yoo, Yohan (The 4th Research and Development Institute, Agency for Defense Development)
  • 투고 : 2014.08.15
  • 심사 : 2015.03.20
  • 발행 : 2015.04.05
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초록

This paper deals with the effect of concrete target size on penetration of projectiles. We investigated the penetration depth and residual velocity of projectiles using the 2-D axial symmetric model. Most analysis were conducted with 13 kg projectile (striking velocity: 456.4 m/s) and concrete target with compressive strength of 39 MPa. This paper provided penetration depth (or residual velocity) versus ratio D/d (target diameter, D and projectile diameter, d). When the bottom of concrete cylinder was constrained, penetration depth converged to limit depth more than the ratio D/d of 36. The residual velocity of projectile with thin concrete target were investigated. The residual velocity was converged to specific velocity more than the ratio D/d of 16.

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참고문헌

  1. D. J. Frew, S. J. Hanchak, M. L. Green and M. J. Forrestal, "Penetration of Concrete Targets with Ogive-nose Steel Rods," Int. J. Impact Eng., Vol. 21, pp. 489-497, 1998. https://doi.org/10.1016/S0734-743X(98)00008-6
  2. D. J. Frew, M. J. Forrestal and S. J. Hanchak, "Penetration Experiments with Limestone Targets and Ogive-nose Steel Projectiles," ASME J. Appl. Mech., Vol. 67, pp. 841-845, 2000. https://doi.org/10.1115/1.1331283
  3. M. J. Forrestal and S. J. Hanchak, "Penetration Limit Velocity for Ogive-nose Projectiles and Limestone Targets," ASME J. Appl. Mech., Vol. 69, pp. 853-854, 2000.
  4. 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
  5. T. L. Warren, A. F. Fossum and D. J. Frew, "Penetration into Low-strength(23 MPa) Concrete: Target Characterization and Simulations," Int. J. Impact Eng., Vol. 30, pp. 477-503, 2004. https://doi.org/10.1016/S0734-743X(03)00092-7
  6. 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
  7. S. B. Kim, Y. H. Yoo and H. J. Kim, "Numerical Study of Concrete Target Size Effect on Projectile Penetration," The 4th Int. Conf. on Design and Analysis of Protective Structures, P-T6-2, 2012.

피인용 문헌

  1. Numerical Study on Variation of Penetration Performance into Concrete with Reinforcement Modeling Methods vol.25, pp.3, 2016, https://doi.org/10.9709/JKSS.2016.25.3.097