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

Truncated conical shells have been extensively used in a wide range of engineering applications due

Anahtar Kelimeler:

Conical hollow shells, FEA, carbon fiber, fiber orientation angle, natural frequency

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

Truncated conical shells have been extensively used in a wide range of engineering applications dueto their special geometric shapes, and their vibration properties have been interested by many researchers in recentyears. In this study, vibration analysis of truncated conical hollow shells constructed from the fiber reinforcedcarbon/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 naturalfrequencies and mode shapes within the extended frequency range. Natural frequency values were determinedfor 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 hasbeen significantly affected by boundary conditions while it has been little effected by fiber orientation angle thoseeffecting on mode shapes associated with natural frequencies.

Keywords:

Conical hollow shells, FEA, carbon fiber, fiber orientation angle, natural frequency,

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