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http://dx.doi.org/10.7734/COSEIK.2019.32.2.133

Finite Element Analysis for the Penetration Phenomena of Shaped Charge Jets using Hydrodynamic Theory  

Kang, Youngku (Hanwhwa Corp. Defense R&D Center)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.32, no.2, 2019 , pp. 133-140 More about this Journal
Abstract
In this paper, the penetration process of Shaped charge jet(SCJ) was simulated through finite element analysis to obtain physical quantities such as jet incidence velocity, penetration rate, and penetration increment. As a result of applying these physical quantities to the hydrodynamic theory, it was confirmed that the penetration efficiency of the jet with a high incident velocity is higher than that of the following slow jet. This efficiency decreased sharply when the jet was slower than the hydrodynamic limit(HL). On the other hand, the comparison of penetration increment and jet consumption over time showed that the length extension effect should be considered for SCJ's theoretical penetration analysis.
Keywords
shaped charge warhead; jet; finite element method; hydrodynamic theory; hydrodynamic limit; target; penetration; efficiency;
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