6533b85ffe1ef96bd12c1b2a
RESEARCH PRODUCT
Prediction of Dissipative Properties of Flax Fibers Reinforced Laminates by Vibration Analysis
Ali El HafidiStéphane FontaineMarouane BelaïdPapa-birame GningPapa Benoît Piezelsubject
Materials sciencebusiness.industry[SPI] Engineering Sciences [physics]Loss factorComposite numberStiffnessGeneral MedicineStructural engineering[SPI.MAT] Engineering Sciences [physics]/MaterialsViscoelasticityFractional calculusVibrationDissipative systemmedicineStandard linear solid modelComposite materialmedicine.symptombusinessComputingMilieux_MISCELLANEOUSdescription
This study proposes an experimental-numeric method to identify the viscoelastic properties of flax fibres reinforced composite laminate (flax/epoxide). The used method consists in identifying the evolutions of both loss factor and stiffness when vibrational frequency changes. In this way, several free-free symmetrically guided beams are excited on a dynamic range of 10 to 4000 Hz with sweep sine excitation focused around the 4-first’s modes. Fractional derivative Zener model is used to identify the on-axis ply complex moduli and describe the laminate dissipative linear behavior with the classical laminate theory. Results obtained on a quasi-isotropic laminate show that this model adequately predicts the vibrational behavior of the tested laminates.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-01-01 |