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

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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Numerical Analysis of Deformation Characteristics in the Double-Layer Liner According to Explosive Material Distribution

이중층 라이너에서 폭발 재료 분포에 따른 변형 특성 수치해석

  • Mun, Sang Ho (Department of Mechanical Design Engineering, Andong National University) ;
  • Kim, See Jo (Department of Mechanical Design Engineering, Andong National University) ;
  • Lee, Chang Hee (Division of Materials Science & Engineering, College of Engineering, Hanyang University) ;
  • Lee, Seong (The 4th Research and Development Institute, Agency for Defense Development)
  • 문상호 (안동대학교 기계설계공학과) ;
  • 김시조 (안동대학교 기계설계공학과) ;
  • 이창희 (한양대학교 신소재공학부) ;
  • 이성 (국방과학연구소 제4기술연구본부)
  • Received : 2015.09.07
  • Accepted : 2016.08.19
  • Published : 2016.10.05
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Abstract

The development of new concepts of liners is required in order to effectively neutralize the enemy's attack power concealed in the armored vehicles. A multiple-layer liner is one of possibilities and has a mechanism for explosion after penetrating the target which is known as "Behind Armor Effect." The multiple-layer explosive liner should have sufficient kinetic energy to penetrate the protective structure and explosive material react after target penetration. With this in mind, double-layer liner materials were obtained by cold spray coating methods and these material properties were experimentally characterized and used in this simulation for double-layer liners. In this study, numerical simulations in the three different layer types, i.e., single, A/B, A/B/A in terms of the layer location were verified in terms of finite element mesh sizes and numerical results for the jet tip velocity, kinetic energy, and the corresponding jet deformation characteristics were analysed in detail depending on the structure of layer types.

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References

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