提高径向增强复合材料外壳的细胞3d打印纤维增强结构的能量吸收

IF 12.7 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering Pub Date : 2025-04-09 DOI:10.1016/j.compositesb.2025.112513

Bence Szederkényi , Norbert K. Kovács , Tibor Czigany

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引用次数: 0

摘要

本研究考察了碳纤维增强聚合物壳结合的细胞结构的吸能能力。蜂窝芯采用材料挤压3D打印制造，外壳采用碳纤维-环氧预浸料手工铺层制造。在组合配置和组件级别上分别分析了各种材料和增强结构。在准动态压缩测试后，对打印样品的能量吸收性能进行了评估，结果表明，通过引入径向增强箍层，3d打印的细胞结构可以抵抗分层，从而显著提高压缩承载能力，从而避免局部屈曲。这导致了稳定的失效模式和更高的比能量吸收（SEA）。混合结构将外部外壳与细胞框架结合在一起，表现出协同效应，导致SEA改善高达200%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Improving energy absorption in cellular 3D-Printed fiber–reinforced structures with radially reinforced composite shells

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Improving energy absorption in cellular 3D-Printed fiber–reinforced structures with radially reinforced composite shells

This study investigates the energy absorption capabilities of cellular structures combined with carbon fiber–reinforced polymer shells. The cellular core was produced by material extrusion 3D printing, while the shells were manufactured by the hand layup of carbon fiber-epoxy prepreg. Various material and reinforcement configurations were analyzed in a combined configuration and separately on a component level. The energy absorption properties of the printed specimens were evaluated after quasi-dynamic compression tests, demonstrating that the introduced radially reinforced hoop layers significantly improved compressive load-bearing capacity by resisting delamination and, consequently, local buckling in the 3D-printed cellular structures. This led to stable failure modes and higher specific energy absorption (SEA). The hybrid structures, which combined external shells with a cellular framework, exhibited a synergistic effect, resulting in up to a 200 % improvement in SEA.

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来源期刊

Composites Part B: Engineering 工程技术-材料科学：复合

CiteScore

24.40

自引率

11.50%

发文量

784

审稿时长

21 days

期刊介绍： Composites Part B: Engineering is a journal that publishes impactful research of high quality on composite materials. This research is supported by fundamental mechanics and materials science and engineering approaches. The targeted research can cover a wide range of length scales, ranging from nano to micro and meso, and even to the full product and structure level. The journal specifically focuses on engineering applications that involve high performance composites. These applications can range from low volume and high cost to high volume and low cost composite development. The main goal of the journal is to provide a platform for the prompt publication of original and high quality research. The emphasis is on design, development, modeling, validation, and manufacturing of engineering details and concepts. The journal welcomes both basic research papers and proposals for review articles. Authors are encouraged to address challenges across various application areas. These areas include, but are not limited to, aerospace, automotive, and other surface transportation. The journal also covers energy-related applications, with a focus on renewable energy. Other application areas include infrastructure, off-shore and maritime projects, health care technology, and recreational products.