Finite Element Vibrational Analysis of a Porous Functionally Graded Plate

Abstract

In the manufacturing process of functionally graded (FG) structures, it is common to observe the formation of porosities within the material. Therefore, it’s important to consider the existence of these micro voids at the design level. In this study, a realistic approach to the vibrational analysis of FG plates considering porosity is presented. For different porosity distributions and boundary conditions, vibrational behavior of a square plate is analyzed using ANSYS Workbench. The influence of porosity is investigated. It is concluded that the higher the void percentage, the lower are the natural frequencies. It is also deduced that porosity distribution is a middle ground between the non-porous and uniformly distributed porosity pattern.