Natural vibration frequencies of delaminated composite beams

Marek Krawczuk; Wiesław Ostachowicz; Arkadiusz Żak

Marek Krawczuk Institute of Fluid Flow Machinery, Polish Academy of Sciences
Wiesław Ostachowicz Institute of Fluid Flow Machinery, Polish Academy of Sciences
Arkadiusz Żak Institute of Fluid Flow Machinery, Polish Academy of Sciences

Abstract

In the presented work a model of a layered, delaminated composite beam based on the finite elements method was introduced. In this model the beam was divided into finite elements, while the delamination was modelled using additional boundary conditions. One delaminated region in the cross-section of the beam was considered which extended to the full width of the beam. It was also assumed that the delamination was open. The influence of the delamination length and position on the changes of natural frequencies of flexural vibrations of the laminated composite cantilever beam were investigated.

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References

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