Abstract
AbstractIn this paper, shape control and vibration attenuation of functionally graded thin spherical structures using functionally graded piezoelectric material (FGPM) are considered. These thin piezolaminated spherical structures were abundantly used in the aerospace industry. The predicted behaviour of these piezo-laminated thin structures is significantly influenced if the nonlinear geometric analysis is considered. An effort has been made to show the geometric nonlinear behaviour of thin spherical shell based on continuum mechanics approach. A four-node piezolaminated shell element is used with mixed interpolation to overcome the locking phenomenon, such as shear and membrane locking. Numerical studies have been performed to control the shape and vibration behaviour of the spherical shell structures undergoing deformation due to different loading conditions.KeywordsGeometric nonlinear analysisShape controlVibration controlFunctionally graded materials
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