Ballistic performance of perforated steel against explosively formed projectile impact

IF 7.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Mechanical Sciences Pub Date : 2025-06-14 DOI:10.1016/j.ijmecsci.2025.110475

Yuanbo Li, Jinxiang Wang, Lingquan Kong, Yunkun Hou, Jian Wang, Kui Tang, Ming Yang, Liangtao Liu

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引用次数: 0

Abstract

Lightweight protective structures face a critical challenge in simultaneously mitigating high-speed kinetic energy projectiles while maintaining structural efficiency. Honeycomb array perforated steel (HAPS) exhibits distinct protective performance against explosively formed projectiles (EFPs) compared to conventional bullets. A smooth particle hydrodynamics finite-element model numerical simulation and an experimental verification method were used to study the ballistic performance. An analysis was performed to assess the impact of the HAPS arrangement and EFP impact points on protective capabilities. The findings reveal that the protective efficacy is most pronounced when HAPS is placed between two layers of target panels. In the embedding damage mode, the maximum deformation of the back panel in the sandwich structure with HAPS decreased by 52.7 % compared with the HAPS front configuration. In the penetration mode, the ballistic limit velocity increased by 9.9 % compared with the HAPS front configuration. Moreover, the impact location and of the EFP and the cell size of HAPS influences the EFP's penetration capability, with the asymmetric contact between the HAPS and the EFP enhancing the resistance of the structure. Petallike perforations were observed at the rear of the HAPS. These discoveries provide insight into the development of protective structures and offer valuable perspectives for structural design and applications in related fields.

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穿孔钢抗爆炸成形弹丸冲击的弹道性能

轻型防护结构在保持结构效率的同时，如何减轻高速动能弹丸的冲击，这是一个重要的挑战。蜂窝阵列穿孔钢（HAPS）与传统子弹相比，对爆炸形成的弹丸（EFPs）具有独特的防护性能。采用光滑颗粒流体力学有限元模型、数值模拟和实验验证方法对其弹道性能进行了研究。分析评估了HAPS布置和EFP冲击点对防护能力的影响。研究结果表明，当HAPS被放置在两层目标板之间时，其保护效果最为明显。在埋置损伤模式下，夹层结构后面板的最大变形量比前面板减小了52.7%。侵彻模式下，弹道极限速度比HAPS前缘提高了9.9%。此外，弹丸的撞击位置和弹丸单元的尺寸也会影响弹丸的侵彻能力，弹丸与弹丸之间的不对称接触增强了结构的阻力。在HAPS后部观察到花瓣状穿孔。这些发现为防护结构的发展提供了深入的见解，并为相关领域的结构设计和应用提供了有价值的视角。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Mechanical Sciences 工程技术-工程：机械

CiteScore

12.80

自引率

17.80%

发文量

769

审稿时长

19 days

期刊介绍： The International Journal of Mechanical Sciences (IJMS) serves as a global platform for the publication and dissemination of original research that contributes to a deeper scientific understanding of the fundamental disciplines within mechanical, civil, and material engineering. The primary focus of IJMS is to showcase innovative and ground-breaking work that utilizes analytical and computational modeling techniques, such as Finite Element Method (FEM), Boundary Element Method (BEM), and mesh-free methods, among others. These modeling methods are applied to diverse fields including rigid-body mechanics (e.g., dynamics, vibration, stability), structural mechanics, metal forming, advanced materials (e.g., metals, composites, cellular, smart) behavior and applications, impact mechanics, strain localization, and other nonlinear effects (e.g., large deflections, plasticity, fracture). Additionally, IJMS covers the realms of fluid mechanics (both external and internal flows), tribology, thermodynamics, and materials processing. These subjects collectively form the core of the journal's content. In summary, IJMS provides a prestigious platform for researchers to present their original contributions, shedding light on analytical and computational modeling methods in various areas of mechanical engineering, as well as exploring the behavior and application of advanced materials, fluid mechanics, thermodynamics, and materials processing.