Mechanical Buckling of FG Saturated Porous Rectangular Plate with Piezoelectric Actuators

Jabbari, M.; Rezaei, Masoud; Mojahedin, A.

Mechanical Buckling of FG Saturated Porous Rectangular Plate with Piezoelectric Actuators

Document Type : Research Paper

Authors

¹ Islamic Azad University South Tehran Branch

² Department of Mechanical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran

³ Department of Mechanical Engineering, Sourth Tehran Branch, Islamic Azad University, Tehran, Iran

Abstract

In this study buckling analysis of solid rectangular plate made of porous material bounded with the
layers of piezoelectric actuators in undrained condition is investigated. Porous material properties vary
through the thickness of plate with a specific function. Distributing of the pores through the plate thickness
is assumed to be the nonlinear nonsymmetric distribution. The general mechanical non-linear equilibrium
and linear stability equations are derived using the variational formulations to obtain the governing equations
of piezoelectric porous plate. The effects of piezoelectric layers on critical buckling load of plate, piezoelectric
layer-to-porous plate thickness ratio and actuator voltage are studied. Also, effect of fluid compressibility
and variation of porosity on critical buckling load are investigated in the undrained condition.Closed-form
solutions is used to derive the critical buckling loads of the plate subjected to mechanical loading.The results
obtained for porous plates with the layers of piezoelectric actuators are verified with the known data in
literature.

Keywords

20.1001.1.16059727.2016.17.2.3.0

Main Subjects

Beams, plates and shells

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