Multiple interacting cracks in an orthotropic layer |
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Authors: | A. M. Baghestani A. R. Fotuhi S. J. Fariborz |
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Affiliation: | 1. Department of Mechanical Engineering, Amirkabir University of Technology (Tehran Polytechnic), 424, Hafez Avenue, Tehran, Iran 2. Department of Mechanical Engineering, Yazd University, Safaeieh, Yazd, Iran
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Abstract: | The stress fields in an orthotropic layer containing climb and glide edge dislocations are obtained by means of the complex Fourier transform. Stress analysis in the intact layer under in-plane point loads is also carried out. These solutions are employed to derive integral equations for the layers weakened by several interacting cracks subject to in-plane deformation. The integral equations are of Cauchy singular type. These equations are solved numerically for the density of dislocations on a crack surface. The dislocation densities are utilized to derive stress intensity factor for cracks. Several examples are solved and the interaction between the two cracks is investigated. |
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