Characterization of the vibrational behaviour of flax fibre reinforced composites with an interleaved natural viscoelastic layer

In this study, the vibration and damping performances of flax fibre reinforced composites with an interleaved natural viscoelastic layer are investigated. The experimental analysis is studied using beam test specimens and an impulse technique in flexural vibration. Damping modeling is developed usin...

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Bibliographic Details
Published in:Applied acoustics 2017-12, Vol.128, p.23-31
Main Authors: Daoud, Hajer, El Mahi, Abderrahim, Rebière, Jean-Luc, Taktak, Mohamed, Haddar, Mohamed
Format: Article
Language:English
Subjects:
Damping
Engineering Sciences
Finite elements
Flax fibres
Natural viscoelastic layer
Vibration
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Summary:In this study, the vibration and damping performances of flax fibre reinforced composites with an interleaved natural viscoelastic layer are investigated. The experimental analysis is studied using beam test specimens and an impulse technique in flexural vibration. Damping modeling is developed using finite element analysis which evaluates the different energies dissipated in the material directions of the layers. The results obtained show that this analysis corresponds closely to experimental results. Finally, a parametric study is carried out using finite element analysis, to investigate the effects of flax fibre directions, thickness and Young’s modulus of the natural viscoelastic layer.
ISSN:0003-682X
1872-910X
DOI:10.1016/j.apacoust.2016.12.005