Analytical Solution of a Crack Problem in a Radially Graded FGM

2008-09-25
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.

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Citation Formats
S. Cetin and F. S. Kadıoğlu, “Analytical Solution of a Crack Problem in a Radially Graded FGM,” 2008, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/49133.