International Journal of Fracture

, Volume 9, Issue 2, pp 133–146 | Cite as

Stress intensity factors for an elliptical crack approaching the surface of a semi-infinite solid

  • R. C. Shah
  • A. S. Kobayashi
Article
Received:

Abstract

Stress intensity factors for an embedded elliptical crack approaching the free surface of the semi-infinite solid that is subjected to uniform tension perpendicular to the plane of crack are presented in a nondimensional form for various crack aspect ratios and crack distances from the free surface. Stress intensity factors are determined numerically using an alternating technique with two solutions. The first solution involves an elliptical crack in a solid and subjected to normal loading expressible in a polynomial of x and y. The second solution involves stresses in the half space due to prescribed normal and shear stresses on the surface. Effect of the Poisson's ratio on these stress intensity factors is also investigated. Stress intensity factors for a semi-elliptical surface crack in a tinite thickness plate are then estimated in a nondimensional form for various crack aspect ratios and crack depth to plate thickness ratios.

Keywords

Shear Stress Mechanical Engineer Free Surface Civil Engineer Stress Intensity Factor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Noordhoff International Publishing 1973

Authors and Affiliations

  • R. C. Shah
    • 1
  • A. S. Kobayashi
    • 1
    • 2
  1. 1.The Boeing CompanyAerospace GroupSeattleWashington
  2. 2.Department of Mechanical EngineeringUniversity of WashingtonSeattleWashington

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