چكيده لاتين :
This paper studies free vibration of simply supported functionally graded beams with piezoelectric
layers subjected to axial compressive loads. The Youngיs modulus of beam is assumed to be
graded continuously across the beam thickness. Applying the Hamilton’s principle, the governing
equation is established. Resulting equation is solved using the Euler’s Equation. The effects of the
constituent volume fractions, the influences of applied voltage and axial compressive loads on the
vibration frequency are presented. To investigate the accuracy of the present analysis, a
compression study is carried out with a known data.