A numerical investigation on vibration analysis of fiber reinforced and truncated conical hollow shells with different fiber orientations

Authors : Mehmet BULUT

Pages : 259-269

Doi:10.21597/jist.408815

View : 39 | Download : 9

Publication Date : 2018-12-30

Article Type : Research Paper

Abstract :Truncated conical shells have been extensively used in a wide range of engineering applications due to their special geometric shapes, and their vibration properties have been interested by many researchers in recent years. In this study, vibration analysis of truncated conical hollow shells constructed from the fiber reinforced carbon/epoxy composites was investigated for different fiber orientation angles ([0o/90o], [15o/-75o], [30o/-60o], and [45o/-45o]). Finite element analysis (FEA) was performed by using ABAQUS software for prediction of natural frequencies and mode shapes within the extended frequency range. Natural frequency values were determined for constant semi-vertex angle of the conical structure (45o), and boundary conditions of clamped-clamped (C-C), simply supported-simply supported (S-S) and clamped-free (C-F). It is concluded that natural frequency has been significantly affected by boundary conditions while it has been little effected by fiber orientation angle those effecting on mode shapes associated with natural frequencies.
Keywords : Conical hollow shells, FEA, carbon fiber, fiber orientation angle, natural frequency

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