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

Year 2018, , 259 - 269, 30.12.2018

Mehmet Bulut

https://doi.org/10.21597/jist.408815

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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