Volume 7, Issue 1
Study on the Bending Fatigue Behavior of Single Aramid Fibers by a Novel Bending Fatigue Test Method

Guangming Cai, Wenfang Song, Xin Cui & Weidong Yu

Journal of Fiber Bioengineering & Informatics, 7 (2014), pp. 13-22.

Published online: 2014-07

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  • Abstract
In this paper, we report a bending fatigue testing apparatus which can test the bending fatigue resistance of single Kevlar 49 fiber by setting the pretension and bending angle. The cyclic tension and the (number of cyclic bending of fiber) were recorded by this apparatus. The cyclic tension curve showed that the tension changes in periods during the bending fatigue process. The cyclic tension was theoretically analyzed and found that the bending angle had significant effect on the cyclic tension. The cyclic bending number N of Kevlar 49 fiber was plotted as a function of pretension S using S-N curves, which shows that the bending angle and pretension have a significant effect on the fatigue lifetime of a fiber. The bending fatigue morphologies of Kevlar 49 fiber explained the bending failure mechanism of the Kevlar 49 fibers.
  • Keywords

Test Method Bending Fatigue Kevlar 49 Fiber Cyclic Tension Fracture Morphology

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COPYRIGHT: © Global Science Press

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@Article{JFBI-7-13, author = {}, title = {Study on the Bending Fatigue Behavior of Single Aramid Fibers by a Novel Bending Fatigue Test Method}, journal = {Journal of Fiber Bioengineering and Informatics}, year = {2014}, volume = {7}, number = {1}, pages = {13--22}, abstract = {In this paper, we report a bending fatigue testing apparatus which can test the bending fatigue resistance of single Kevlar 49 fiber by setting the pretension and bending angle. The cyclic tension and the (number of cyclic bending of fiber) were recorded by this apparatus. The cyclic tension curve showed that the tension changes in periods during the bending fatigue process. The cyclic tension was theoretically analyzed and found that the bending angle had significant effect on the cyclic tension. The cyclic bending number N of Kevlar 49 fiber was plotted as a function of pretension S using S-N curves, which shows that the bending angle and pretension have a significant effect on the fatigue lifetime of a fiber. The bending fatigue morphologies of Kevlar 49 fiber explained the bending failure mechanism of the Kevlar 49 fibers.}, issn = {2617-8699}, doi = {https://doi.org/10.3993/jfbi03201402}, url = {http://global-sci.org/intro/article_detail/jfbi/4763.html} }
TY - JOUR T1 - Study on the Bending Fatigue Behavior of Single Aramid Fibers by a Novel Bending Fatigue Test Method JO - Journal of Fiber Bioengineering and Informatics VL - 1 SP - 13 EP - 22 PY - 2014 DA - 2014/07 SN - 7 DO - http://doi.org/10.3993/jfbi03201402 UR - https://global-sci.org/intro/article_detail/jfbi/4763.html KW - Test Method KW - Bending Fatigue KW - Kevlar 49 Fiber KW - Cyclic Tension KW - Fracture Morphology AB - In this paper, we report a bending fatigue testing apparatus which can test the bending fatigue resistance of single Kevlar 49 fiber by setting the pretension and bending angle. The cyclic tension and the (number of cyclic bending of fiber) were recorded by this apparatus. The cyclic tension curve showed that the tension changes in periods during the bending fatigue process. The cyclic tension was theoretically analyzed and found that the bending angle had significant effect on the cyclic tension. The cyclic bending number N of Kevlar 49 fiber was plotted as a function of pretension S using S-N curves, which shows that the bending angle and pretension have a significant effect on the fatigue lifetime of a fiber. The bending fatigue morphologies of Kevlar 49 fiber explained the bending failure mechanism of the Kevlar 49 fibers.
Guangming Cai, Wenfang Song, Xin Cui & Weidong Yu . (2019). Study on the Bending Fatigue Behavior of Single Aramid Fibers by a Novel Bending Fatigue Test Method. Journal of Fiber Bioengineering and Informatics. 7 (1). 13-22. doi:10.3993/jfbi03201402
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