The crushing behavior and energy absorption characteristics of all-composite star-triangular honeycomb structure

IF 23.2 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Advanced Composites and Hybrid Materials Pub Date : 2025-02-24 DOI:10.1007/s42114-025-01276-3

Zhikang Liu, Bo Xiong, Yifei Zhang, Jiayi Liu, Wei Huang

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引用次数: 0

Abstract

The energy absorption characteristics and toughness of carbon fiber-reinforced plastics (CFRP) are improved from two aspects of structure and material. In terms of structure, an all-composite star-triangle honeycomb structure (CSTH) with negative Poisson’s ratio characteristic was designed and fabricated firstly. From the aspect of material, the polyetherimide (PEI) film was added into the layers of CFRP to enhance the toughness. A quasi-static compression experiment of CSTH was carried out. Besides, environmental scanning electron microscopy (ESEM) and ultra depth of field microscope (UDFM) were used to analyze the microstructure of CSTH. The failure mode and damage mechanism of CSTH were compared and revealed novelly from macroscopic and microscopic aspects. The delamination resistance of carboxylic multiwalled carbon nanotube (MWCNT) which was added between PEI film and carbon fiber layers was investigated. The theoretical prediction model of the equivalent elastic modulus and the ultimate compressive strength of CSTH was established. The theoretical results were verified and modified by the experimental results. The maximum error of theoretical results was less than 15% compared with that of experimental results. Results showed that CSTH had a better energy absorption characteristic compared with the re-entrant honeycomb structure and X honeycomb structure. In addition, the foam and PEI film could enhance the toughness of CSTH.

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全复合材料星形三角形蜂窝结构的破碎性能及吸能特性

碳纤维增强塑料（CFRP）的吸能特性和韧性从结构和材料两个方面得到改善。在结构方面，首先设计并制作了一种具有负泊松比特性的全复合星形三角形蜂窝结构。从材料方面，在CFRP层中加入聚醚酰亚胺（PEI）膜，增强其韧性。对CSTH进行了准静态压缩试验。利用环境扫描电镜（ESEM）和超景深显微镜（UDFM）对CSTH的微观结构进行了分析。从宏观和微观两方面对CSTH的破坏模式和损伤机理进行了比较，并有了新的揭示。研究了添加在PEI膜与碳纤维层之间的羧基多壁碳纳米管（MWCNT）的抗分层性能。建立了CSTH等效弹性模量和极限抗压强度的理论预测模型。实验结果对理论结果进行了验证和修正。理论结果与实验结果的最大误差小于15%。结果表明，CSTH结构比重入式蜂窝结构和X型蜂窝结构具有更好的吸能特性。此外，泡沫和PEI膜都能提高CSTH的韧性。

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来源期刊

Advanced Composites and Hybrid Materials Multiple-

CiteScore

26.00

自引率

21.40%

发文量

185

期刊介绍： Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.