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On the dynamic performance of flax fiber composite beams manufactured at different relative humidity levels

  • Development of environment-friendly natural fiber composites has been a recent trend. However, due to the fact that natural fibers permit high level of moisture absorption from the surroundings, it can lead to weak bindings and degradation of composite properties. This paper presents an experimental study on the dynamic performance of flax fiber composite beams manufactured at different relative humidity (RH) levels. Five types of flax fiber-reinforced composite materials were made under different RH values, i.e., dry, 35%, 50%, 70%, and 95% RH, and beam samples were prepared using the composite. Impact hammer testing was conducted to measure the natural frequencies and damping of the beams. It was found that for the first three modes, while the resonant frequencies are very close for most samples, there is a clear drop of frequencies for the composite fabricated at 95% RH. Along with an increase of the RH level, the damping ratios for all the three modes have reported a slight increase, but the variation is not significant.

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Metadaten
Author:H. Li, A. Moudood, W. Hall, G. Francucci, A. Öchsner
DOI:https://doi.org/https://doi.org/10.1080/15440478.2018.1507864
Parent Title (English):Journal of Natural Fibers
Publisher:Taylor & Francis
Place of publication:Abingdon
Document Type:Article
Language:English
Year of Completion:2020
Publishing Institution:Hochschule Esslingen
Release Date:2021/01/07
Volume:17
Issue:4
First Page:598
Last Page:608
Open Access?:nur im Hochschulnetz
Relevance:Peer reviewed Publikation in Master Journal Liste (Clarivate)
Licence (German):License LogoVeröffentlichungsvertrag ohne Print-on-Demand