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Mathematical Problems in Engineering
Volume 2015, Article ID 851548, 22 pages
http://dx.doi.org/10.1155/2015/851548
Research Article

Determination of the Stress State of a Piecewise Homogeneous Elastic Body with a Row of Cracks on an Interface Surface Subject to Antiplane Strains with Inclusions at the Tips

Institute of Mechanics, National Academy of Sciences, 24 b M. Baghramian Avenue, 0019 Yerevan, Armenia

Received 6 January 2015; Accepted 11 March 2015

Academic Editor: Christopher Pretty

Copyright © 2015 Ali Golsoorat Pahlaviani and Suren Mkhitaryan. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The stress state of a bimaterial elastic body that has a row of cracks on an interface surface is considered. It is subjected to antiplane deformations by uniformly distributed shear forces acting on the horizontal sides of the body. The governing equations of the problem, the stress intensity factors, the deformation of the crack edges, and the shear stresses are derived. The solution of the problem via the Fourier sine series is reduced to the determination of a singular integral equation (SIE) and consequently to a system of linear equations. In the end, the problem is solved in special cases with inclusions. The results of this paper and the previously published results show that the used approach based on the Gauss-Chebyshev quadrature method can be considered as a generalized procedure to solve the collinear crack problems in mode I, II, or III loadings.