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Stress intensity factors of a radial crack in a compound disk

Authors
Journal
International Journal of Engineering Science
0020-7225
Publisher
Elsevier
Publication Date
Volume
31
Issue
10
Identifiers
DOI: 10.1016/0020-7225(93)90003-d
Disciplines
  • Mathematics

Abstract

Abstract In this paper, stress distribution in a compound disk or compound cylinder, embedded an edge dislocation is determined through an exact formulation of the plane elasticity problem. The dislocation solution is then used as a Green's function to approach general compound disk crack problems. By superposition and integration of the dislocation solution, the stress intensity factors of the crack can be formulated in terms of a singular integral equation, and evaluated using a collocation technique accurately. As an example, numerical results of stress intensity factors for a radial crack in a compound disk subjected to uniform crack surface pressure are given. Effects of disk-annulus geometries and stiffness on the crack behavior are studied. Various special cases are also discussed and compared with existing solutions.

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