Vibroscope method for determination of cross-sectional area of glass and carbon fibres – Experiments and analyses

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2024-09-07 DOI:10.1016/j.compositesa.2024.108447

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Abstract

Determination of cross-sectional area of glass and carbon fibres is a critical part of mechanical testing of the fibres. The present study focuses on the vibroscope method which is based on frequency measurements of a fibre under tension. Three data analysis procedures, named simple, direct and iterative, are presented, providing estimates of the fibre cross-sectional area with increasing accuracy. The simple procedure underestimates the cross-sectional area with about 0.4 – 2.0 % and 0.4 – 3.7 % for the tested glass fibres and carbon fibres, respectively. The cross-sectional area determined by the direct procedure deviates only marginally from the most accurate cross-sectional area as determined by the iterative procedure. Histograms of cross-sectional areas of glass and carbon fibres are presented to show the large variation of cross-sectional areas between individual fibres. Stress–strain curves of the tensile tested fibres are presented, and the small variation of stress–strain curves between individual fibres contributes to the validation of the vibroscope method.

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测定玻璃纤维和碳纤维横截面积的振动仪方法 - 实验与分析

玻璃纤维和碳纤维横截面积的测定是纤维机械测试的关键部分。本研究的重点是基于张力下纤维频率测量的振动仪方法。本文介绍了三种数据分析程序，分别为简单程序、直接程序和迭代程序，它们对纤维横截面积的估算越来越精确。对于测试的玻璃纤维和碳纤维，简单程序分别低估了约 0.4 - 2.0 % 和 0.4 - 3.7 % 的横截面积。直接程序确定的横截面积与迭代程序确定的最精确横截面积仅有微小偏差。玻璃纤维和碳纤维横截面积的直方图显示了不同纤维之间横截面积的巨大差异。此外，还展示了拉伸测试纤维的应力-应变曲线，单根纤维之间应力-应变曲线的微小差异有助于验证振动仪方法。

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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.