This paper investigates the free vibration of symmetrically laminated, thick, doubly connected plates of arbitray plate perimeter for the outer boundary and a hole de"ned by a super-elliptical equation which is able to describe a rectangle, ellipse or quasi-rectangle. The laminated perforated plates
VIBRATION OF SYMMETRICALLY LAMINATED THICK SUPER ELLIPTICAL PLATES
โ Scribed by C.C. Chen; C.W. Lim; S. Kitipornchai; K.M. Liew
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 278 KB
- Volume
- 220
- Category
- Article
- ISSN
- 0022-460X
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โฆ Synopsis
This paper reports a free vibration analysis of thick plates with rounded corners subject to a free, simply-supported or clamped boundary condition. The plate perimeter is defined by a super elliptic function with a power defining the shape ranging from an ellipse to a rectangle. To incorporate transverse shear deformation, the Reddy third-order plate theory is employed. The energy integrals incorporating shear deformation and rotary inertia are formulated and the p-Ritz procedures are used to derive the governing eigenvalue equation. Numerical examples for plates with different shapes and boundary conditions are solved and their frequency parameters, where possible, are compared with known results. Parametric studies are carried out to show the sensitivities of frequency parameters by varying the geometry, fibre stacking sequence, and boundary condition.
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