6533b827fe1ef96bd1285d5f
RESEARCH PRODUCT
Characterization of the dynamic behaviour of flax fibre reinforced composites using vibration measurements
P.b. GningM. BelaïdAli El-hafidiPapa-birame GningBenoît PiezelStéphane Fontainesubject
Frequency responseMaterials scienceLoss factorConstitutive equation02 engineering and technologyDynamic mechanical analysis010402 general chemistry021001 nanoscience & nanotechnology01 natural sciencesViscoelasticity0104 chemical sciencesFractional calculusVibration[SPI]Engineering Sciences [physics]Standard linear solid modelComposite material0210 nano-technologydescription
International audience; Experimental and numerical methods to identify the linear viscoelastic properties of flax fibre reinforced epoxy (FFRE) composite are presented in this study. The method relies on the evolution of storage modulus and loss factor as observed through the frequency response. Free-free symmetrically guided beams were excited on the dynamic range of 10 Hz to 4 kHz with a swept sine excitation focused around their first modes. A fractional derivative Zener model has been identified to predict the complex moduli. A modified ply constitutive law has been then implemented in a classical laminates theory calculation (CLT) routine.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-10-23 |