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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.3
- 수록면
- 73 - 83 (11page)
- DOI
- 10.7315/CDE.2019.073
이용수
초록· 키워드
오류제보하기
The jet formed from the shaped charge with an aspect ratio of 2.73 and a higher strength liner than the conventional liner is shown to form a region where the temperature is higher than the melting point of copper, based on the result of the numerical analyses using an elastic-perfectly plastic constitutive model for the copper liner. This phenomenon is ascribed to the increased plastic work of the high-strength liner. From the result of numerical analyses using an appropriate strain-, strain rate-, and temperature-dependent constitutive model that can describe the stress upturn phenomenon of copper, the flow stress control of the high-strength copper liner is shown to be able to form an appropriate amount of melted volume, which increases the effective jet volume with a velocity higher than 2 km/s, fosters jet extension without breakage, and eventually increases depth of penetration in the target. Necessity of experimental verification for these findings is addressed together with a future activity to obtain the strain rate- and temperaturedependent fracture equivalent strain of the high-strength copper liner.
목차
ABSTRACT
1. 서론
2. 수치해석
3. 결과 및 고찰
4. 결론
References
참고문헌 (26)
참고문헌 신청
Jang, E. and Park, K., 2016, 2D Numerical Analysis for the Penetration Damage Assessment of the Combat Vehicle Armour, Proc. Soc. CAD/ CAM Eng., pp.707-714.
Cho, A., Park, K. and Kim, G., 2017, Numerical Analysis Approach to Calculate the Damage Degree of the Combat Vehicle, Kor. J. Comput. Design Eng., 22(2), pp.101-109.
Lee, S., Lee, Y., Jo, J. and Bae, Y., 2013, A Study on Penetration of Cylindrical and Cube Tungsten under Various Aspect Ratio, Proc. Soc. CAD/CAM Eng., pp.782-787.
Walters, W.P. and Zukas, J.A., 1989, Fundamentals of Shaped Charges, John Wiley & Sons, Hoboken, NJ, USA, pp.1-398.
Kim, H., Park, L., Han, C., Lee, S. and Kim, H., 2009, Characteristic Study on the Jet Formed by W-Cu Liner Applied to the Shaped Charge Warhead, KIMST Annual Conf. Proc., pp. 1260- 1263.
Cho, A., Park, K. and Kim, G., 2017, Numerical Analysis Approach to Calculate the Damage Degree of the Combat Vehicle, Kor. J. Comput. Design Eng., 22(2), pp.101-109.
Lee, S., Lee, Y., Jo, J. and Bae, Y., 2013, A Study on Penetration of Cylindrical and Cube Tungsten under Various Aspect Ratio, Proc. Soc. CAD/CAM Eng., pp.782-787.
Walters, W.P. and Zukas, J.A., 1989, Fundamentals of Shaped Charges, John Wiley & Sons, Hoboken, NJ, USA, pp.1-398.
Kim, H., Park, L., Han, C., Lee, S. and Kim, H., 2009, Characteristic Study on the Jet Formed by W-Cu Liner Applied to the Shaped Charge Warhead, KIMST Annual Conf. Proc., pp. 1260- 1263.
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UCI(KEPA) : I410-ECN-0101-2019-530-000497498