Influence of the embedded structure on the EFP formation of compact terminal sensitive projectile

Bo yang Xing, Rong zhong Liu, Rui Guo, Liang Chen, Hao Zhou, Yong liang Yang, Lei Liu

Research output: Contribution to journalArticleAcademicpeer-review

9 Citations (Scopus)
111 Downloads (Pure)

Abstract

To improve the damage efficiency of compact terminal sensitive projectile with EFP warhead, it is vital to understand how the embedded structure (ES) affects the EFP forming performance. In this paper, the corresponding numerical investigation is focused on, in which the fluid-structure interaction (FSI) method and the experimental verification are used. Based on the obtained quantitative relations between the forming performance and α (the ratio of height to maximum radius of ES), an optimal design is further provided. The results indicate that: when the embedded structural length and width range 0.1–0.3D and 0.1–0.2D (D: diameter of EFP warhead) at a fixed volume, respectively, EFP forming velocity nearly keeps as a constant, 1760 m/s; the height of ES has a dramatical effect on the propagating range of detonation wave, resulting in significant influence on the aerodynamic shape and length-to-diameter ratio of EFP; under the given constraints, the EFP length-diameter ratio can reach the optimal value 2.76, when the height of ES is 0.22D.

Original languageEnglish
Pages (from-to)310-315
Number of pages6
JournalDefence Technology
Volume13
Issue number4
DOIs
Publication statusPublished - 1 Aug 2017

Keywords

  • Detonation wave
  • EFP formation
  • Embedded structure
  • Terminal sensitive projectile

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