On the understanding of GRAM® technology- robotic wet filament winding- for high-performance fibre-reinforced thermoset composites

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-05-18 DOI:10.1016/j.compositesa.2025.109028

Masoud Bodaghi , Lyazid Bouhala , Claus G. Bayreuther , Ahmed El Moumen , David Macieira , Martin Kerschbaum

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引用次数: 0

Abstract

This study examined the effects of nozzle diameter and fibre pre-tension on the impregnation quality and mechanical performance of GRAM robotized wet filament-wound composites. The use of a larger nozzle improved fibre impregnation, reduced void content from 6 % to 2 %, and enhanced composite uniformity. Higher fibre pre-tension (10 N) flattened fibre tows, increasing packing density and resin distribution, which minimized voids and improved mechanical properties. In contrast, lower pre-tension (5 N) resulted in increased voids and weaker composites. Mechanical testing showed that samples produced with higher pre-tension and larger nozzles exhibited more consistent mechanical responses. Although the larger nozzle samples were ∼7 % stronger than those made with a smaller nozzle, the study highlighted the importance of optimizing fibre impregnation & compaction for achieving high-performance filament-wound composites.

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了解GRAM®技术-机器人湿丝缠绕-用于高性能纤维增强热固性复合材料

研究了喷嘴直径和纤维预张力对GRAM机器人湿丝缠绕复合材料浸渍质量和力学性能的影响。使用更大的喷嘴可以改善纤维浸渍，将孔隙率从6%降低到2%，并增强复合材料的均匀性。更高的纤维预张力（10 N）使纤维束变平，增加了填料密度和树脂分布，从而减少了空隙并改善了机械性能。相比之下，较低的预张力（5 N）会导致空隙增加和复合材料变弱。力学试验表明，高预张力和大喷嘴的试样力学响应更一致。尽管使用较大喷嘴的样品比使用较小喷嘴的样品强度高7%，但该研究强调了优化纤维浸渍的重要性。实现高性能长丝缠绕复合材料的压实。

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.