Structural Strength Analysis and Measurement of Composite Laminate Using Finite Element Method and FBG Sensor

Abstract:

The aim of this study is to develop structural strength analysis technique and real-time measuring system of composite laminate using finite element method (FEM) and fiber bragg grating (FBG) sensor. A composite laminate of cantilever beam was designed and fabricated using glass fiber reinforced plastic (GFRP) for structural mechanics behavior research. Six design cases of different orientations composite laminate were considered for the better combinations by using FEM program. The bending test of a composite laminate of cantilever beam was performed by using FBG sensor to obtained relationship between strain and displacement. The study result shows that the higher stiffness of composite laminate of cantilever beam was obtained in the [0/90/0/90] orientation. The first natural frequency is 34.83 Hz and corresponding mode shape is bending mode in Z-direction. The FEM and FBG sensor have been successfully used in variety of composite laminate design with different layering sequences by this article.

• Periodical: Applied Mechanics and Materials (Volume 851)
• Pages: 720-727
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.851.720
• Online since: August 2016
• Authors: Yu Chuan Lin*, Wen Jeng Hsueh
• Keywords: Composite Laminate, FBG Sensor, Finite Element Method (FEM)

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