体积分数可变的连续纤维增强复合材料的快速成型制造

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2024-10-01 DOI:10.1016/j.compositesa.2024.108504

Haoren Wang , Yafeng Han , Jiping Lu , Shuiyuan Tang , Hongli Fan , Yuhan Xia , Zezhi Xiang , Chenglong Gong , Run Wang , Shiye Chen , Le Tang

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引用次数: 0

摘要

本研究提出了一种用于连续纤维增强复合材料（CFRC）快速成型的新方法，其特点是采用可调节喷嘴，实现连续纤维体积分数的可变控制。通过修改打印头的尺寸，这种方法可以在整个制造过程中无缝调节连续纤维的体积分数，范围从 3.6% 到 32%。与此同时，还开发了一种基于主应力轨迹分析的打印路径优化方法。该算法已通过先进的模拟技术进行了严格验证，证明了其在提高制造试样机械性能方面的功效。随后使用所开发的设备进行了实验验证，在纤维含量没有增加的情况下，拉伸强度提高了 61.04%，从而凸显了所开发工艺的效率。这项研究证实了这一策略在推动复合材料技术的发展、提高机械性能、制造复杂零件方面的潜力。该设备还有望生产出更多具有优化路径的高质量印刷样品。

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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Additive manufacturing of continuous fiber reinforced composites with variable volume fractions

This study presents a novel approach to additive manufacturing for Continuous Fiber Reinforced Composites (CFRCs), featuring an adjustable nozzle, enabling variable volume fraction control of continuous fibers. By modifying the dimensions of the print head, this method allows for a seamless adjustment of the continuous fiber volume fraction, ranging from 3.6% to 32%, throughout the fabrication process. Concurrently, an optimization method for the printing path, grounded in the analysis of principal stress trajectories, has been developed. This algorithm has been rigorously validated through advanced simulation techniques, proving its efficacy in enhancing the mechanical properties of the fabricated specimens. Subsequent experimental validation using the developed equipment resulted in a 61.04% increase in tensile strength, without any increase in fiber content, thereby highlighting the efficiency of the developed process. The study confirms the potential of this strategy in advancing composite material technology for complex part manufacturing with improved mechanical performance. The equipment also promises to produce a greater number of high-quality printed samples with optimized paths.

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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.