Free Vibration and Buckling Analyses of Functionally Graded Porous Columns by FEM

Lan Hoang Ton That

Abstract

This article presents the free vibration and buckling behaviors of functionally graded porous (FGP) columns by using FEM (finite element method). The Matlab code developed based on the finite element formulation is validated by solving the above problems under four types of boundary condition. Numerical results which are in terms of natural frequencies and buckling load are compared with the analytical solutions and further extended to FGP columns. Besides, some mode shapes of this structure are also depicted in this article to provide specific views about the free vibration and buckling behaviors of the proposed structure.

Keywords

Buckling; Column; Finite element method; Free vibration; Functionally graded porous.

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