Paper Title:
Analytical Solution of a Crack Problem in a Radially Graded FGM
  Abstract

The objective of this study is to determine stress intensity factors (SIFs) for a crack in a functionally graded layer bonded to a homogeneous substrate. Functionally graded coating contains an edge crack perpendicular to the interface. It is assumed that plane strain conditions prevail and the crack is subjected to mode I loading. By introducing an elastic foundation underneath the homogeneous layer, the plane strain problem under consideration is used as an approximate model for an FGM coating with radial grading on a thin walled cylinder. The plane elasticity problem is reduced to the solution of a singular integral equation. Constant strain loading is considered. Stress intensity factors are obtained as a function of crack length, strip thicknesses, foundation modulus, and inhomogeneity parameter.

  Info
Periodical
Materials Science Forum (Volumes 631-632)
Edited by
Akira Kawasaki, Akinaga Kumakawa and Masayuki Niino
Pages
115-120
DOI
10.4028/www.scientific.net/MSF.631-632.115
Citation
S. Çetin, S. Kadıoğlu, "Analytical Solution of a Crack Problem in a Radially Graded FGM", Materials Science Forum, Vols. 631-632, pp. 115-120, 2010
Online since
October 2009
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Price
$32.00
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