A dynamic drafting model with the frictional force between fibers

Fan, Jule; Zhang, Yuze; Wang, Jun

doi:10.1177/00405175231166395

Cited by 2 publications

(2 citation statements)

References 21 publications

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“…Carbon yarn breakage is a combined effect of external forces, which is affected by a combination of friction, bending, deflection, tension, and material fatigue 14,45,46 . A braiding carrier with a yarn bobbin installed vertically, the carbon yarn first undergoes a 90° bending along the axis of the yarn bobbin, then undergoes a 90° twisting upon contact with the guiding element.…”

Section: Resultsmentioning

confidence: 99%

“…Friction between carbon fibers during weft beating motion in the 3D weaving process, carbon fibers are subjected to a combination of tensile, shear, and compression forces, 12 where shear dominates the wear behavior of carbon fibers 13 . The dynamic drafting model 14 can be used to study the friction performance analysis of carbon fibers. Guo 15 revealed the friction wear mechanism of yarns during Z‐yarn implantation in blanks.…”

Section: Introductionmentioning

confidence: 99%

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Study on the wear characteristics of carbon fiber yarns under the influence of multifactor coupling on braiding carriers

Ye,

Chi,

Peng

et al. 2024

Polymer Composites

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Reducing the wear of carbon fibers on braiding carriers is the key to manufacturing high‐performance carbon fiber composite prefabricated parts. In this study, a new analytical model is developed to describe the local friction behavior of yarns on braiding carriers. The degree of yarn wear is characterized by calculating the gray value of carbon fiber hairiness and observing the micro‐surface morphology of carbon fibers. The wear characteristics of carbon fiber yarns under the multi‐factor coupling influences of yarn tension, unwinding speed, and guiding element characteristics were considered. The results show that increases in unwinding angle and unwinding speed both increase the wear of carbon fiber yarns. Eliminating the effect of unwinding angle can reduce the yarn hairiness by more than 60%, alleviate the yarn tension fluctuation by more than 70%, and improve the yarn tension stability by more than 75%. Meanwhile, the relationship between the wrapping angle between the yarn and the yarn bobbin, the unwinding angle, and the yarn tension was established according to the Capstan Equation. A method is proposed to improve the characteristics and spatial position of the guiding elements to obtain more intact yarn and low‐damage yarn surfaces.Highlights A new analytical model for local friction of carbon fibers is developed. The friction‐wear‐fracture mechanism of carbon fiber yarns is constructed. Characterize the degree of yarn wear from a macro and micro perspective. Wear characteristics of carbon fiber yarns under multi‐factor coupling.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study on the wear characteristics of carbon fiber yarns under the influence of multifactor coupling on braiding carriers

Ye,

Chi,

Peng

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

show abstract

The influence of the friction field on accelerating position distribution

Fan,

Wang,

Zhang

et al. 2024

Textile Research Journal

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In accordance with the tenets of displacement deviation theory, the distribution of accelerating positions was the main reason for the uneven output sliver. To elucidate this phenomenon, a dynamic drafting model with controllable fiber proportion was developed in this paper to simulate the accelerating process of the floating fiber. The model was employed to investigate the impact of the friction field on the distribution of accelerating positions, achieved through the manipulation of friction field distribution and fiber proportion in the drafting zone. The simulation results indicated that, with various drafting conditions, the friction field at the position with a higher slow fiber proportion always made the accelerating position distribution closer to the front roller. In addition, the duration of the friction field influence on the fiber floating process was found to be directly proportional to its effect on the accelerating position distribution. Furthermore, there was a critical slow fiber proportion, which increased in tandem with the augmentation of slow fiber proportions in the drafting zone. The friction field at the position where the proportion of slow fibers was higher than the critical slow fiber proportion made the accelerating position distribution closer to the front roller; otherwise, the friction field made the accelerating position distribution closer to the back roller. This study can offer a valuable reference for designing more effective friction field distribution to improve the output sliver quality.

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A dynamic drafting model with the frictional force between fibers

Cited by 2 publications

References 21 publications

Study on the wear characteristics of carbon fiber yarns under the influence of multifactor coupling on braiding carriers

Study on the wear characteristics of carbon fiber yarns under the influence of multifactor coupling on braiding carriers

The influence of the friction field on accelerating position distribution

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