Mixed Mode Fracture Analysis of Multiple Interface Cracks

Authors

  • M. Monfared Department of Mechanical Engineering, Hashtgerd Branch, Islamic Azad University, Alborz, Iran
  • R. Bagheri Department of Mechanical Engineering, Karaj Branch, Islamic Azad University, Alborz, Iran
Abstract:

This paper contains a theoretical formulation of multiple interface cracks in two bonded dissimilar half planes subjected to in-plane traction. The distributed dislocation technique is used to construct integral equations for a dissimilar mediums weakened by several interface cracks. These equations are of Cauchy singular type at the location of dislocation, which are solved numerically to obtain the dislocation density on the faces of the cracks. The dislocation densities are employed to evaluate the modes I and II stress intensity factors for multiple interface cracks. Numerical calculations are presented to show the interation effects of interface cracks on the stress intensity factors.

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Journal title

volume 15  issue 2

pages  78- 90

publication date 2014-09-01

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