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http://dx.doi.org/10.9766/KIMST.2016.19.5.618

Numerical Analysis of Deformation Characteristics in the Double-Layer Liner According to Explosive Material Distribution  

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)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.19, no.5, 2016 , pp. 618-628 More about this Journal
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.
Keywords
Double-Layer Liner; Explosive Material; Numerical Analysis; Jet Velocity; Deformation Characteristics;
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