Effects of FGM materials on the parametric resonance of plate structures

The parametric resonance of functionally graded rectangular plates under ha rmonic in-plane loading is presented. The objective here is to study the in fluence of the constituent volume fractions and the effects of configuratio ns of the constituent materials on the parametric instability regions, in p articular the positions and sizes of these regions. The material properties are graded in the thickness direction according to a material volume fract ion power law distribution. The present problem is formulated based on Hami lton's principle and the assumed mode method. Bolotin's method is used here to determine the instability regions. (C) 2000 Elsevier Science S.A. All r ights reserved.