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

Research output: Contribution to journalArticle

10 Citations (Scopus)
3 Downloads (Pure)

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 languageEnglish
Pages (from-to)367-376
Number of pages10
JournalComposite Structures
Volume118
Early online date19 Jul 2014
DOIs
Publication statusPublished - Dec 2014

Keywords

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

Cite this

Three-dimensional elastic deformation of functionally graded isotropic plates under point loading. / Abali, B. E.; Voellmecke, C.; Woodward, B.; Kashtalyan, M. (Corresponding Author); Guz, I.; Mueller, W. H.

In: Composite Structures, Vol. 118, 12.2014, p. 367-376.

Research output: Contribution to journalArticle

Abali, B. E. ; Voellmecke, C. ; Woodward, B. ; Kashtalyan, M. ; Guz, I. ; Mueller, W. H. / Three-dimensional elastic deformation of functionally graded isotropic plates under point loading. In: Composite Structures. 2014 ; Vol. 118. pp. 367-376.
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AU - Woodward, B.

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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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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.

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KW - Heterogeneous materials

KW - A posteriori error estimation

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