Three-dimensional elastic deformation of functionally graded isotropic plates under point loading

B. E. Abali; C. Voellmecke; B. Woodward; M. Kashtalyan; I. Guz; W. H. Mueller

doi:10.1016/j.compstruct.2014.07.013

Three-dimensional elastic deformation of functionally graded isotropic plates under point loading

B. E. Abali, C. Voellmecke, B. Woodward, M. Kashtalyan^* (Corresponding Author), I. Guz, W. H. Mueller

^*Corresponding author for this work

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Abstract

In this paper, three-dimensional elastic deformation of isotropic functionally graded plates subjected to point loading is investigated using a combination of analytical and computational means. The analytical approach is based on the displacement functions method, while numerical modeling, which requires high accuracy in the representation of the point loading, uses GALERKIN type finite element method. Three different plate geometries are examined for validation purposes, and the difficulties associated with an optimum choice of the element size are discussed. It is shown that by using a posteriori error estimation based on the equivalent stress measure accurate results can be obtained even in the neighborhood of the point loading. (C) 2014 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	367-376
Number of pages	10
Journal	Composite Structures
Volume	118
Early online date	19 Jul 2014
DOIs	https://doi.org/10.1016/j.compstruct.2014.07.013
Publication status	Published - Dec 2014

Keywords

Functionally graded materials (FGM)
Variational formulation
Finite element method
Heterogeneous materials
A posteriori error estimation
Adaptive refinement
CORE

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10.1016/j.compstruct.2014.07.013Licence: Unspecified

AURA manuscript
NOTICE: this is the author’s version of a work that was accepted for publication in Composite Structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Composite Structures, VOL 118, 2014 DOI: 10.1016/j.compstruct.2014.07.013
Accepted author manuscript, 691 KBLicence: Unspecified

Profiles

Igor Guz

Engineering, Engineering - Head of School of Engineering, Chair in Solid Mechanics
Engineering (Research Theme)
Aberdeen Institute of Energy
Centre for Micro- and Nanomechanics (CEMINACS)

Person: Academic

Maria Kashtalyan

Engineering, Engineering - Personal Chair
Engineering (Research Theme)
Centre for Micro- and Nanomechanics (CEMINACS)

Person: Academic

Cite this

Abali, B. E., Voellmecke, C., Woodward, B., Kashtalyan, M., Guz, I., & Mueller, W. H. (2014). Three-dimensional elastic deformation of functionally graded isotropic plates under point loading. Composite Structures, 118, 367-376. https://doi.org/10.1016/j.compstruct.2014.07.013

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AU - Abali, B. E.

AU - Voellmecke, C.

AU - Woodward, B.

AU - Kashtalyan, M.

AU - Guz, I.

AU - Mueller, W. H.

N1 - Acknowledgement Financial support of this research by The Royal Society (UK) under grant number JP090633 is gratefully acknowledged.

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N2 - In this paper, three-dimensional elastic deformation of isotropic functionally graded plates subjected to point loading is investigated using a combination of analytical and computational means. The analytical approach is based on the displacement functions method, while numerical modeling, which requires high accuracy in the representation of the point loading, uses GALERKIN type finite element method. Three different plate geometries are examined for validation purposes, and the difficulties associated with an optimum choice of the element size are discussed. It is shown that by using a posteriori error estimation based on the equivalent stress measure accurate results can be obtained even in the neighborhood of the point loading. (C) 2014 Elsevier Ltd. All rights reserved.

AB - In this paper, three-dimensional elastic deformation of isotropic functionally graded plates subjected to point loading is investigated using a combination of analytical and computational means. The analytical approach is based on the displacement functions method, while numerical modeling, which requires high accuracy in the representation of the point loading, uses GALERKIN type finite element method. Three different plate geometries are examined for validation purposes, and the difficulties associated with an optimum choice of the element size are discussed. It is shown that by using a posteriori error estimation based on the equivalent stress measure accurate results can be obtained even in the neighborhood of the point loading. (C) 2014 Elsevier Ltd. All rights reserved.

KW - Functionally graded materials (FGM)

KW - Variational formulation

KW - Finite element method

KW - Heterogeneous materials

KW - A posteriori error estimation

KW - Adaptive refinement

KW - CORE

U2 - 10.1016/j.compstruct.2014.07.013

DO - 10.1016/j.compstruct.2014.07.013

M3 - Article

VL - 118

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EP - 376

JO - Composite Structures

JF - Composite Structures

SN - 0263-8223

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