Thermal buckling of porous FGM plate integrated surface-bonded piezoelectric

Mokhtar Ellali, Khaled Amara and Mokhtar Bouazza

Abstract

In the present paper, thermal buckling characteristics of functionally graded rectangular plates made of porous material that are integrated with surface-bonded piezoelectric actuators subjected to the combined action of thermal load and constant applied actuator voltage are investigated by utilizing a Navier solution method. The uniform temperature rise loading is considered. Thermomechanical material properties of FGM plates are assumed to be temperature independent and supposed to vary through thickness direction of the constituents according to powerlaw distribution (P-FGM) which is modified to approximate the porous material properties with even and uneven distributions of porosities phases. The governing differential equations of stability for the piezoelectric FGM plate are derived based on higher order shear deformation plate theory. Influences of several important parameters on the critical thermal buckling temperature are investigated and discussed in detail.

Key Words

functionally graded materials; higher order shear deformation plate theory; piezoelectric; porosities; Thermal buckling

Address

Mokhtar Ellali: Smart Structures Laboratory, University of Ain Témouchent-Belhadj Bouchaib,46000, Algeria Khaled Amara: Department of Civil Engineering, University of Ain Témouchent-Belhadj Bouchaib,46000, Algeria; Department of Civil Engineering, University Tahri Mohamed of Bechar, Bechar 08000, Algeria Mokhtar Bouazza: Laboratory of Materials and Hydrology (LMH), University of Sidi Bel Abbes, Sidi Bel Abbes 22000, Algeria

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