Uncoupled Thermopiezoelasticity of Functionally Graded Beams with Piezoelectric Actuators

In this paper, uncoupled thermopiezoelastic analysis of functionally graded beams with piezoelectric actuators subjected to electric field and thermal loading is studied using a higher order theory in conjunction with the variational approach. The material property of functionally graded core is assumed to vary according to the volume fraction of constituents given by exponential function. Linear temperature rise across the thickness isconsidered. The electromagnetic potential is assumed to be a piecewise linear across the each piezoelectric layer. The transverse displacement distribution across the thickness direction and the effect of geometry of beam on deflection is discussed in detail.

Keywords:

functionally graded material , higher ordertheory , uncoupled thermopiezoelastic , piezoelectricactuator