Energy absorption behavior of Al/CFRP hybrid tubes under tearing trigger mechanism

IF 14.2 1区材料科学 Q1 ENGINEERING, MULTIDISCIPLINARY

Composites Part B: Engineering Pub Date : 2025-06-02 DOI:10.1016/j.compositesb.2025.112679

Haoyue Kong , Wenzhen Huang , Yong Zhang , Junhong Lin , Jianxing Yang , Zhixiong Zhang

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引用次数: 0

Abstract

To address the brittle fracture and unstable crushing behavior that limit the energy-absorption potential of carbon fiber-reinforced plastic (CFRP) structures, this paper presents an aluminum/CFRP hybrid tube with tearing triggers (HTTTs). The design strategically introduces geometric features to transform catastrophic brittle failure into progressive tearing, enabling stable and controlled energy dissipation. Simulation results demonstrate significant performance improvements: compared to conventional AL/CFRP crushing tubes, the HTTT exhibits 80 % higher load stability and 20 % greater material utilization efficiency, while achieving a 46 % increase in specific energy absorption (SEA) over CFRP tubes. Parametric studies reveal critical design–performance relationships: internal placement of aluminum tubes optimizes load transfer, enhancing Energy absorption efficiency; IHTTTs with 40–60 % of material percentage show the best synergistic tearing effect, boosting load stability by 78.1 % relative to pure CFRP; and geometric parameters such as a 50 mm outer diameter and 40° conical base angle maximize deformation control through optimized tearing behavior. This research illustrates the benefits of aluminum/CFRP hybrid tubes exhibiting tearing behavior in load-bearing stability and material utilization rate. It also proposes a novel method for developing protective structures offering superior stability and energy absorption.

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撕裂触发机制下Al/CFRP复合材料管的吸能行为

为了解决碳纤维增强塑料（CFRP）结构的脆性断裂和不稳定破碎行为限制其吸能潜力的问题，本文提出了一种带撕裂触发器（HTTTs）的铝/CFRP混合管。设计巧妙地引入几何特征，将灾难性脆性破坏转化为渐进式撕裂，实现稳定可控的能量耗散。模拟结果显示了显著的性能改进：与传统的AL/CFRP破碎管相比，http的负载稳定性提高了80%，材料利用效率提高了20%，而比能量吸收（SEA）比CFRP管提高了46%。参数研究揭示了关键的设计性能关系：铝管的内部放置优化了负载传递，提高了能量吸收效率；材料含量为40 ~ 60%的IHTTTs具有最佳的协同撕裂效果，载荷稳定性较纯CFRP提高78.1%；而外径50 mm、锥底角40°等几何参数通过优化撕裂行为最大限度地控制变形。本研究说明了具有撕裂性能的铝/碳纤维复合材料管在承载稳定性和材料利用率方面的优势。它还提出了一种开发具有优越稳定性和能量吸收性的保护结构的新方法。

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

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.