Contact resistance heating of unidirectional carbon fibre tows in a powder-epoxy towpregging line

IF 2.1 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Plastics, Rubber and Composites Pub Date : 2022-08-09 DOI:10.1080/14658011.2022.2108982

M. Çelik, T. Noble, A. Haseeb, James M. Maguire, C. Robert, C. O. Ó Brádaigh

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引用次数: 4

Abstract

ABSTRACT Contact resistances play a major role in Joule heating systems. Identifying contact resistances provides a better understanding of the heating process and increases the accuracy of the process models. In this study, contact resistances of the Joule heating section in a powder-epoxy-based towpregging line were explored. For different process parameters, such as production speed, tension, and temperature, contact resistances occurring between metal roller electrodes and dry carbon fibre tows (i.e. without powder-epoxy) were measured to gain an insight into the heating process. Moreover, the effect of contact resistance heating on the temperature profile of the carbon fibre tows was determined with an infrared thermal camera. A simplified finite element model was developed to calculate the temperature distribution onthe carbon fibre tow, which showed a good agreement with the experimental data. Results suggest that contact resistances in the towpregging line were significant and contact resistance heating changed the heating profile.

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单向碳纤维束在粉末-环氧纤维束浸渍线中的接触电阻加热

接触电阻在焦耳加热系统中起着重要作用。识别接触电阻可以更好地理解加热过程，并提高过程模型的准确性。本研究探讨了粉末环氧基浸渍线焦耳加热段的接触电阻。对于不同的工艺参数，如生产速度、张力和温度，测量金属辊电极和干碳纤维束(即没有粉末环氧树脂)之间的接触电阻，以深入了解加热过程。此外，利用红外热像仪测定了接触电阻加热对碳纤维束温度分布的影响。建立了简化的有限元模型，计算了碳纤维束的温度分布，结果与实验数据吻合较好。结果表明，接触电阻在拖曳线中显著存在，接触电阻加热改变了加热剖面。

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

Plastics, Rubber and Composites 工程技术-材料科学：复合

CiteScore

4.10

自引率

0.00%

发文量

审稿时长

4 months

期刊介绍： Plastics, Rubber and Composites: Macromolecular Engineering provides an international forum for the publication of original, peer-reviewed research on the macromolecular engineering of polymeric and related materials and polymer matrix composites. Modern polymer processing is increasingly focused on macromolecular engineering: the manipulation of structure at the molecular scale to control properties and fitness for purpose of the final component. Intimately linked to this are the objectives of predicting properties in the context of an optimised design and of establishing robust processing routes and process control systems allowing the desired properties to be achieved reliably.