WIT Press


EFG Based Stability Analysis Of Piezoelectric FGM Plates Subjected To Electricity, Heat And Non-uniformly Distributed Loads

Price

Free (open access)

Paper DOI

10.2495/BE050291

Volume

39

Pages

11

Published

2005

Size

348 kb

Author(s)

X. L. Chen Z. Y. Zhao & K. M. Liew

Abstract

This paper presents the buckling analysis of the piezoelectric functionally graded material (FGM) rectangular plates subjected to non-uniformly distributed loads, heat and voltage based on the mesh-free method. A two-step solution procedure is implemented. The first step is to determine the pre-buckling stresses of the plates subjected to non-uniformly distributed loads. The second step is to solve the buckling loads and buckling temperatures. The variational form of the system for the calculation of pre-buckling stresses is based on a two-dimensional (2D) plane stress problem, and the variational form with penalty method of the plates for the calculation of buckling loads and buckling temperatures is based on the Mindlin plate assumption. The displacement is approximated using the moving least squares (MLS) technique based on a set of scattered nodes. Two numerical examples are presented to validate the proposed mesh-free method. Keywords: functionally graded plate, moving least squares, buckling analysis, non-uniformly distributed load, heat, voltage. 1 Introduction Functionally graded materials (FGMs) are a mixture of two or more materials in such way that their material volume fractions vary continuously along certain

Keywords

functionally graded plate, moving least squares, buckling analysis, non-uniformly distributed load, heat, voltage