Impact Behavior of the Ballistic Targets Package Composed of Dyneema Polymerand High Entropy Alloy Structures

Archives of Metallurgy and Materials

article

I. Voiculescu¹  V. Geanta²  T. Chereches³  P. Vizureanu⁴  R. Stefanoiu²  A. Rotariu⁵  D. Mitrica⁶ 

[1] University Politehnica of Bucharest, Faculty of Industrial Engineering and Robotics;University Politehnica of Bucharest, Faculty of Materials Science and Engineering;UPS PILOR ARM;Gheorghe Asachi Technical University of Iasi, Faculty of Materials Science and Engineering;Military Technical Academy Ferdinand I;National Research-Development Institute for Non-Ferrous and Rare Metals – IMNR

关键词: ballistic target;    high entropy alloy;    Dyneema polymer;    impact;    numerical simulation;   

DOI  :  10.24425/amm.2022.137792

学科分类：物理（综合）

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

Ballistic targets are multi-material assemblies that can be made of various materials, such as metal alloys, ceramics, andpolymers. Their role is to provide collective or individual ballistic protection against high-speed dynamic penetrators or kineticfragments. The paper presents the impact behavior with incendiary perforating bullets having 7.62 mm of ballistic packagesmade of combinations between Dyneema ultra-high-molecular-weight polyethylene and high entropy alloy from alloying system­AlCoCrFeNi, by analyzing the dynamic phenomena (deformation, perforation) that take place at high speeds. The geometry evolution of the physical model subjected to numerical simulation allows a very good control over the discretization network and alsoallows the export for modeling to nonlinear transient phenomena. The results obtained by numerical simulation showed that theanalyzed ballistic package does not allow sufficient protection for values of impact velocities over 500 m/sec.

【 授权许可】

CC BY-NC