Journal Published Online: 17 December 2020
Volume 49, Issue 4

Characterization Shear Properties of PVC Foams Instrumented by Optical Fiber under Flexural Loading

CODEN: JTEVAB

Abstract

The bending behavior of foam core sandwich composites has increasingly attracted attention and application in industries such as shipbuilding, aircraft, and wind turbine industries. The main objective of this research work is the assessment of shear strain in a foam core beam by means of optical fiber sensors during a bending test. Experimental studies were conducted on a polyvinyl chloride (PVC) foam beam in which three optical fibers were embedded in a longitudinal plane across the thickness of the foam core; straight optical fibers measure strains due to the tension/compression load, whereas the sinusoidal fibers catch strains due to the shear load. A finite element model was used to predict strain levels in order to validate and explain optical fiber sensor measurements from three- and four-point bending tests. The concordance of the shear properties identified by optical fiber sensor results and obtained by finite element simulation was evaluated to validate the newly developed technique of characterization. Results shows good agreement between the experimental and numerical responses.

Author Information

Mharsi, Karim
Institut de Recherche en Génie Civil et Mécanique (GeM) (UMR, CNRS 6183), Université de Nantes, Centrale Nantes, Saint-Nazaire Cedex, France Laboratory of Electromechanical Systems (LASEM), National Engineering School of Sfax, University of Sfax, 3038 Sfax, Tunisia
Chapeleau, Xavier
COSYS-SII, I4S Team, University Gustave Eiffel, F-44344 Bouguenais, France
Fajoui, Jamal
Institut de Recherche en Génie Civil et Mécanique (GeM) (UMR, CNRS 6183), Université de Nantes, Centrale Nantes, Saint-Nazaire Cedex, France
Sellami, Amira
Laboratory of Electromechanical Systems (LASEM), National Engineering School of Sfax, University of Sfax, 3038 Sfax, Tunisia
Casari, Pascal
Institut de Recherche en Génie Civil et Mécanique (GeM) (UMR, CNRS 6183), Université de Nantes, Centrale Nantes, Saint-Nazaire Cedex, France
Kchaou, Mohamed
Department of Mechanical Engineering, College of Engineering, University of Bisha, Saudi Arabia Institut Supérieur des Arts et Métiers de Sfax (ISAMS), University of Sfax, 3029 Sfax, Tunisie
Pages: 11
Price: $25.00
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Stock #: JTE20200123
ISSN: 0090-3973
DOI: 10.1520/JTE20200123