Structural Engineering and Mechanics

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Analysis of natural frequencies of delaminated composite beams based on finite element method

  • Krawczuk, M. (Institute of Fluid Flow Machinery Polish Academy of Sciences) ;
  • Ostachowicz, W. (Institute of Fluid Flow Machinery Polish Academy of Sciences) ;
  • Zak, A. (Institute of Fluid Flow Machinery Polish Academy of Sciences)
  • Published : 1996.05.25
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Abstract

This paper presents a model of a layered, delaminated composite beam. The beam is modelled by beam finite elements, and the delamination is modelled by additional boundary conditions. In the present study, the laminated beam contains only one delaminated region through the thickness direction which extends to the full width of the beam. It is also assumed that the delamination is open. The influence of the delamination length and position upon changes in the bending natural frequencies of the composite laminated cantilever beam is investigated.

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References

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  2. Natural Frequencies and Mode Shapes of Composite Cylindrical Delaminated Shells by Finite Element vol.29, pp.2, 2010, https://doi.org/10.1177/0731684408097012
  3. Bending Response of Cross-Ply Laminated Composite Plates with Diagonally Perturbed Localized Interfacial Degeneration vol.2013, 2013, https://doi.org/10.1155/2013/350890
  4. Optimization of orthotropic rectangular laminates with weak interfaces under buckling vol.38, pp.2, 2007, https://doi.org/10.1016/j.compositesa.2006.05.001
  5. Vibrations of composite plates with SMA fibres in a gas stream with defects of the type of delamination vol.54, pp.2-3, 2001, https://doi.org/10.1016/S0263-8223(01)00102-7
  6. Influence of weak interfaces on buckling of orthotropic rectangular laminates vol.81, pp.3, 2007, https://doi.org/10.1016/j.compstruct.2006.09.002
  7. Free vibration analysis of delaminated composite beams vol.74, pp.2, 2000, https://doi.org/10.1016/S0045-7949(99)00029-2
  8. Non-Linear Vibration of a Delaminated Composite Beam vol.293-294, pp.1662-9795, 2005, https://doi.org/10.4028/www.scientific.net/KEM.293-294.607
  9. Issues on the Vibration Analysis of In-Service Laminated Glass Structures: Analytical, Experimental and Numerical Investigations on Delaminated Beams vol.9, pp.18, 1996, https://doi.org/10.3390/app9183928