Experimental and numerical study on ballistic performance of a sandwich composite plate with biomimetic tendon basalt filament bundles (SCP-BTBFB)

IF 6.6 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2025-09-09 DOI:10.1016/j.tws.2025.113960

Yanyan Chu , Jingyu Xu , Xucai Wang , Baokun Zhu , Tao Peng , Yue Zhang , Jinhaitong Zou , Zhao Zhang , Chenhui Jiao , Chaoying Mao

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引用次数: 0

Abstract

Currently, basalt fiber provides a solid support for protective effects due to its high mechanical properties, and its excellent ballistic protection capability is particularly in line with the core requirements of this field. Meanwhile, it also possesses the characteristics of low cost, environmental friendliness and diverse environmental adaptability, thus becoming an ideal alternative to traditional composite materials in the current ballistic protection field. This study developed a sandwich composite plate with biomimetic tendon basalt filament bundles (SCP-BTBFB), using basalt filament bundles as the core and CFRP as face panels. Ballistic impact experiments (7.62 mm pistol bullets, 445 m/s initial velocity) and Abaqus simulations systematically investigated the effects of core height (5–20 mm), impact position, and winding fibers (UHMWPE, Aramid, LCP) on ballistic performance. Results show increasing core height enhances stiffness and reduces residual velocity, with 12.5 mm core achieving optimal SEA (4 J/g). Impacting four filament bundles yields highest energy absorption efficiency (damage volume as a key factor). Aramid-wrapped cores show maximum energy absorption (365.6 J) due to high impact toughness. The study reveals damage mechanisms: front panel shear failure, core filament fracture/extrusion, and rear panel delamination/warping, confirming that synergies between core microstructure and fiber properties are critical for ballistic performance, providing a basis for lightweight protective material design. Furthermore, to further optimize the structural performance, future work will adopt schemes such as modifying fiber materials, interfacial modification, and gradient core layers to further balance costs and improve performance, which is expected to provide some assistance for the field of lightweight protective materials.

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仿生肌腱玄武岩纤维束夹心复合材料板（SCP-BTBFB）弹道性能的实验与数值研究

目前，玄武岩纤维由于其较高的力学性能为防护效果提供了坚实的支撑，其优异的防弹道能力尤其符合该领域的核心要求。同时，它还具有成本低、环境友好和多样化的环境适应性等特点，成为当前弹道防护领域替代传统复合材料的理想选择。本研究以玄武岩纤维束为芯材，CFRP为面材，研制了仿生肌腱玄武岩纤维束夹心复合材料板（SCP-BTBFB）。弹道冲击实验（7.62 mm手枪子弹，初始速度445 m/s）和Abaqus模拟系统地研究了芯高度（5-20 mm）、冲击位置和缠绕纤维（UHMWPE、芳纶、LCP）对弹道性能的影响。结果表明，增加岩心高度可以提高刚度并降低残余速度，12.5 mm岩心的SEA最佳（4 J/g）。冲击四个长丝束产生最高的能量吸收效率（损伤体积是一个关键因素）。芳纶包芯具有较高的冲击韧性，吸能最大（365.6 J）。研究揭示了损伤机制：前面板剪切破坏、芯材断裂/挤压、后面板分层/翘曲，证实了芯材微观结构和纤维性能之间的协同作用对弹道性能至关重要，为轻量化防护材料设计提供了基础。此外，为了进一步优化结构性能，未来的工作将采用改性纤维材料、界面改性、梯度核心层等方案，进一步平衡成本，提高性能，有望为轻量化防护材料领域提供一定的帮助。

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

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.