Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/10538
Title: Free vibration analysis of damaged composite beams
Authors: Cünedioğlu, Yusuf
Beylergil, Bertan
Keywords: Fiber reinforced composites
Finite element method
Structural design
Vibrations
Issue Date: 2015
Publisher: Techno Press
Abstract: In this study, free vibration analyses of symmetric laminated cantilever and simply supported damaged composite beams are investigated by using finite element method (FEM). Free vibration responses of damaged beams are examined using Euler Bernoulli beam and classical lamination theories. A computer code is developed by using MATLAB software to determine the natural frequencies of a damaged beam. The local damage zone is assumed to be on the surface lamina of the beam by broken fibers after impact. The damaged zone is modeled as a unidirectional discontinuous lamina with 0 degrees orientations in this study. Fiber volume fraction (v(f)), fiber aspect ratio (L-f/d(f)), damage length (L-D) and its location (lambda/L), fiber orientation and stacking sequence parameters effects on natural frequencies are investigated. These parameters are affected the natural frequency values significantly.
URI: https://doi.org/10.12989/sem.2015.55.1.079
https://hdl.handle.net/11147/10538
ISSN: 1225-4568
1598-6217
Appears in Collections:Mechanical Engineering / Makina Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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