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Modeling the tensile behavior of fiber bundles with irregular constituent fibers

He, Wendy W. and Wang, Xungai 2004, Modeling the tensile behavior of fiber bundles with irregular constituent fibers, Journal of applied polymer science, vol. 93, no. 6, pp. 2664-2668.

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Title Modeling the tensile behavior of fiber bundles with irregular constituent fibers
Author(s) He, Wendy W.
Wang, Xungai
Journal name Journal of applied polymer science
Volume number 93
Issue number 6
Start page 2664
End page 2668
Publisher Wiley
Place of publication New York, NY.
Publication date 2004
ISSN 0021-8995
1097-4628
Keyword(s) fibre
irregularity
bundle
stress
strain
numerical model
fibre science
Summary In this paper, the effect of fiber dimensional irregularities on the tensile behavior of fiber bundles is modeled, using the finite element method (FEM). Fiber dimensional irregularities are simulated with sine waves of different magnitude. The specific stress-strain curves of fiber bundles and the constituent single fibers are obtained and compared. The results indicate that fiber diameter irregularity along fiber length has a significant effect on the tensile behavior of the fiber bundle. For a bundle of uniform fibers of different diameters, all constituent fibers will break simultaneously regardless of the fiber diameter. Similarly, if fibers within a bundle have the same pattern and level of diameter irregularity along fiber length, the fibers will break at the same time also regardless of the difference in average diameter of each fiber. In these cases, the specific stress and strain curve for the bundle overlaps with that of the constituent fibers. When the fiber bundle consists of single fibers with different levels of diameter irregularity, the specific stress-strain and load-elongation curves of the fiber bundle exhibit a stepped or “ladder” shape. The fiber with the highest irregularity breaks first, even when the thinnest section of the fiber is still coarser than the diameter of a very thin but uniform fiber in the bundle. This study suggests that fiber diameter irregularity along fiber length is a more important factor than the fiber diameter itself in determining the tensile behavior of a fiber bundle consisting of irregular fibers.
Notes Published in Journal of applied polymer science, vol 93, no 6, 2004 at www.interscience.wiley.com
Language eng
Field of Research 091012 Textile Technology
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2004, Wiley Periodicals, Inc.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30002571

Document type: Journal Article
Collections: School of Engineering and Technology
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.