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- Title
Study on optimization of jet forming of tandem shaped charge warhead.
- Authors
Zeyan Han; Chong Ji; Xin Wang; Yuting Wang; Gang Wu; Long Zhang; Haojie Zhu
- Abstract
In order to greatly improve the length of shaped charge jet and optimize the jet forming performance, the forming process of a tandem shaped charge structure with reverse detonation mode was numerically simulated. The effects of the rear and front stage liner thickness on the jet length, jet head velocity, jet kinetic energy and energy conversion rate were analyzed respectively using LS-DYNA finite element analysis software. Then the optimal thickness of the front and rear stage liner of the tandem shaped charge structure was optimized, and the jet length was measured. Under the condition of charge diameter of 200 mm, when the liner thickness was 0.02CD (charge diameter) for K-charge and liner thickness was 0.25CD for the front stage warhead, the jet forming was stable and the length is the longest. After the two-stage warhead was detonated in reverse order (the initiation delay time was 220 s), a tandem jet can be formed, and the effective jet length (excluding the pestle body) is 65 % higher than that of the later stage charge.
- Subjects
SHAPED charges; WARHEADS; FINITE element method; KINETIC energy; ENERGY conversion
- Publication
Vibroengineering Procedia, 2022, Vol 44, p130
- ISSN
2345-0533
- Publication type
Article
- DOI
10.21595/vp.2022.22812