Experimental and finite elements analysis of the vibration behaviour of a bio-based composite sandwich beam

Autor: Zouhaier Jendli, Arthur Monti, Laurent Guillaumat, Abderrahim El Mahi
Přispěvatelé: Laboratoire d'Acoustique de l'Université du Mans (LAUM), Le Mans Université (UM)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Le Mans Université (UM), École Supérieure des Techniques Aéronautiques et de Construction Automobile (ESTACA), Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB), Ecole Supérieure des Techniques Aéronautiques et de Construction Automobile (Estaca), ESTACA, Laboratoire des Arts et Métiers ParisTech d'Angers - Procédés Matériaux Durabilité (LAMPA - PMD)
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Materials science
Composite number
02 engineering and technology
[SPI.MECA.MSMECA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Materials and structures in mechanics [physics.class-ph]
Sciences de l'ingénieur
Vibration
Industrial and Manufacturing Engineering
[SPI.MAT]Engineering Sciences [physics]/Materials
[SPI]Engineering Sciences [physics]
0203 mechanical engineering
[SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph]
Composite material
Sandwich-structured composite
ComputingMilieux_MISCELLANEOUS
business.industry
Finite element analysis (FEA)
Mechanical Engineering
Resonance
Mechanical testing
[SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph]
Structural engineering
021001 nanoscience & nanotechnology
Strength of materials
Finite element method
Core (optical fiber)
020303 mechanical engineering & transports
Mechanics of Materials
Ceramics and Composites
0210 nano-technology
business
Beam (structure)
Zdroj: Composites Part B: Engineering
Composites Part B: Engineering, Elsevier, 2017, 110, pp.466-475. ⟨10.1016/j.compositesb.2016.11.045⟩
Composites Part B: Engineering, Elsevier, 2017, 110, pp.466-475
ISSN: 1359-8368
1879-1069
Popis: International audience; This paper presents the results of experimental and numerical analyses of the flexural vibration behaviour of bio-based sandwich structures and their composite faces, and particularly their damping properties. The material studied is made up of two skins made of a thermoplastic matrix reinforced by flax fibres and a balsa wood core. The faces and the whole sandwich structures were produced by liquid resin infusion. First, experimental tests were performed on the skins. Free vibration tests were carried out on unidirectional and cross-ply laminates in a clamped free configuration to investigate the influence of the fibre orientation and stacking sequence on the dynamic stiffness and loss factors. Then, the damping behaviour of the balsa core was studied through several free vibration tests. In addition, the damping properties of sandwich beams with different thicknesses were measured and discussed. Finally, a finite elements model was used to calculate the resonance frequencies and modal loss factors of different sandwich beams. Close correlation between the numerical and experimental results was observed. Finally, a modal strain energy method was used to evaluate the contribution of the skins and of the core to the damping properties of the different sandwich beams.
Databáze: OpenAIRE
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