A Study on the Improvement of Penetration Capability of a Shaped Charge by Controlling the Jet Mass Parameters

So, Byeongkwan

doi:2015.18.5.566

J. KIMS Technol > Volume 18(5); 2015 > Article

Journal of the Korea Institute of Military Science and Technology 2015;18(5):566-573.
DOI: https://doi.org/10.9766/KIMST.2015.18.5.566

A Study on the Improvement of Penetration Capability of a Shaped Charge by Controlling the Jet Mass Parameters

Byeongkwan So

The 4th Research and Development Institute, Agency for Defense Development

제트 질량 변수 조절에 의한 성형작약 관통성능 증대 연구

소병관

국방과학연구소 제4기술연구본부

Abstract

The most important factor for the penetration performance of shaped charge is the liner design. By designing the liner to have properties of both high jet tip velocity and long jet break-up time, the better penetration performance could be acquired. Usually it is very difficult to satisfy above two conditions simultaneously. In this study, the liner with the shape of ogive was developed to have relatively larger jet mass compared to the conventional trumpet liner. The designed shaped charge showed jet properties with high jet tip velocity and long jet break-up time by using ogive liner and wave shaper. A commercially available hydro-dynamic code AUTODYN-2D was used for numerical analysis of jet formation. The flash X-ray test and the static penetration test were conducted to verify the results of numerical analysis.

Key Words: Shaped Charge, Liner, Jet Mass, Flash X-ray Test, Static Penetration Test