Experimental and numerical investigation of frictional behavior of carbon yarns for over-braiding conditions

Anh Ngoc Vu*, Wouter J.B. Grouve, M.B. de Rooij, R. Akkerman

*Corresponding author for this work

Research output: Contribution to conferenceAbstractAcademic


In the over-braiding process, friction at the interlaced points strongly affects the final fibre orientation of the preform [1]. In addition, the frictional behavior appears to be more complex when lubrication agents are applied to the yarn in order to improve processing. This work presents a methodology to investigate the frictional behavior of carbon yarns to better understand the sliding contact mechanisms at yarn levels. The method enables measuring the coefficient of friction as a function of the normal force and inter-angle (the angle between yarns) for both dry and wet conditions. The stick-slip phenomenon is captured well by the method. The results show a strong effect of the inter-angle and the normal force on the friction coefficient. Due to the additional contribution of the capillary force, the friction coefficients of the yarns lubricated with water spray are consistently higher than that of the dry yarns. A model is proposed to capture the influence of anisotropy, normal force and capillary effects on the friction between the two yarns. The model is demonstrated to be capable of accurately predicting the contact force and the coordinates of the contact point.
Original languageEnglish
Number of pages1
Publication statusPublished - 14 Sept 2022
Event14th International Conference on Textile Composites, TexComp 2022 - Kyoto Institute of Technology, Kyoto, Japan
Duration: 14 Sept 202216 Sept 2022
Conference number: 14


Conference14th International Conference on Textile Composites, TexComp 2022
Abbreviated titleTexComp 2022
Internet address

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