Three-dimensional analysis of thick functionally graded piezoelectric plate using EFG method

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• 作者：Salahaldin Mikaeeli ; Bashir Behjat ; ^{behjat@sut.ac.ir" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Functionally graded piezoelectric plates ; Element-Free Galerkin method ; 3-D static analysis ; MLS approximation ; Thick piezoelectric plate
• 刊名：Composite Structures
• 出版年：2016
• 出版时间：15 October 2016
• 年：2016
• 卷：154
• 期：Complete
• 页码：591-599
• 全文大小：2081 K

文摘

In this paper, the three dimensional Element-Free Galerkin (EFG) method is used to investigate static behavior analysis of thick functionally graded piezoelectric plate. The electro-elastic properties of plate are considered to vary in the thickness direction by an exponential function. The shape functions of the variables are calculated using 3D moving least squares (MLS) approximation. The constrained Galerkin weak-form is used and the Lagrange multiplier method is employed to enforce the essential boundary condition. The effects of material composition, boundary conditions and geometric variables on the stress, electric potential, electric field and deformation are investigated. Several examples are presented for functionally graded piezoelectric plates under different loading conditions and the obtained results are compared with the available data in the literature.