Free Vibration Analysis of Moderately Thick Functionally Graded Plates with Multiple Circular and Square Cutouts Using Finite Element Method

Journal of Solid Mechanics

مقاله 7، دوره 7، شماره 1، خرداد 2015، صفحه 83-95   

نوع مقاله: Research Paper

نویسندگان

J Vimal^{* 1}؛ R.K Srivastava¹؛ A.D Bhatt¹؛ A.K Sharma²

¹Department of Mechanical Engineering, Motilal Nehru National Institute of Technology, Allahabad, India

²Department of Mechanical Engineering, Madhav Institute of Technology & Science Gwalior, India

چکیده

A simple formulation for studying the free vibration of shear-deformable functionally graded plates of different shapes with different cutouts using the finite element method is presented. The aim is to fill the void in the available literature with respect to the free vibration results of functionally graded plates of different shapes with different cutouts. The material properties of the plates are assumed to vary according to a power law distribution in terms of the volume fraction of the constituents. Validation of the formulation is done with the help of convergence studies with respect to the number of nodes and the results are compared with those from past investigations available only for simpler problems. In this paper rectangular, trapezoidal and circular plates with cutouts are studied and the effects of volume fraction index, thickness ratio and different external boundary conditions on the natural frequencies of plates are studied.

کلیدواژه‌ها

Functionally Graded Materials؛ Free vibration؛ Circular/square/trapezoidal plates؛ Circular/square cutouts

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