NUMERICAL STUDY ON REACTIVE FRAGMENT DEFLAGRATION DAMAGE TO MULTILAYER TARGETS OF DIFFERENT TARGET THICKNESS

Peiyu Li, Zhenyang Liu, Guancheng Lu, Qingbo Yu

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

Abstract

To investigate the deflagration behavior of reactive materials under multiple impacts, this study utilizes a numerical algorithm based on Autodyn to model the non-self-sustaining energy release triggered by the impact of reactive materials. By conducting numerical simulations of aluminum/polytetrafluoroethylene (PTFE) reactive material projectiles impacting aluminum alloy spacer plates with varying thicknesses, the changes in fragment morphology, as well as the temporal variations of material damage and reactivity during the impact process, were analyzed. These findings provide insights into the penetration/deflagration energy release behavior of reactive materials. The results indicate that increasing the thickness of the front plate enhances the energy release of the material in the rear plate. Furthermore, the thickness of the rear plate primarily influences the post-impact damage potential of the reactive fragments. Increasing the thickness of the rear plate leads to higher failure and reaction rates of the material during secondary impacts.

Original languageEnglish
Title of host publicationInterior Ballistics, Terminal Ballistics
EditorsFrederik Coghe
PublisherDEStech Publications
Pages1946-1956
Number of pages11
ISBN (Electronic)9781605956923
Publication statusPublished - 2023
Event33rd International Symposium on Ballistics, BALLISTICS 2023 - Bruges, Belgium
Duration: 16 Oct 202320 Oct 2023

Publication series

NameProceedings - 33rd International Symposium on Ballistics, BALLISTICS 2023
Volume2

Conference

Conference33rd International Symposium on Ballistics, BALLISTICS 2023
Country/TerritoryBelgium
CityBruges
Period16/10/2320/10/23

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