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

Xing Boyang, Liu Rongzhong, Guo Rui, Chen Liang, Zhou Hao, Yang Yongliang, Liu Lei

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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 dramatic 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
Title of host publicationProceedings - 30th International Symposium on Ballistics, BALLISTICS 2017
PublisherDEStech publications
Pages1593-1598
Number of pages6
Volume2
ISBN (Electronic)9781605954196
DOIs
Publication statusPublished - 1 Jan 2017
Event30th International Symposium on Ballistics (BALLISTICS 2017) - Long Beach, United States
Duration: 11 Sep 201715 Sep 2017
Conference number: 30

Conference

Conference30th International Symposium on Ballistics (BALLISTICS 2017)
Abbreviated titleBALLISTICS 2017
CountryUnited States
CityLong Beach
Period11/09/1715/09/17

Keywords

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

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