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Stress field in a crack on the interface of materials irradiated with SH-waves

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Abstract

On the basis of the solution of the problem of diffraction of a field of plane SH-waves on a crack located on the interface of materials obtained by the authors earlier, we deduce asymptotic expressions for the stress intensity factors at the crack tips. The dependences of the stress intensity factors on the dimensionless crack length, the angle of incidence of the plane wave, and the mechanical and physical properties of the materials are investigated. The possibility of appearance of singularities of the stress intensity factors near the remote crack tip (relative to the source of radiation) for the tangential and critical angles of irradiation is demonstrated. It is shown that, for the critical angles of incidence, these singularities can appear only in perfect materials and that, in the presence of losses, the increase in the stress intensity factors is bounded. It is also demonstrated that the indicated effects are caused by the diffraction interaction of SH-waves with the crack tips.

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Authors and Affiliations

  1. Karpenko Physicomechanical Institute, Ukrainian Academy of Sciences, Lviv

    D. B. Kurylyak, Z. T. Nazarchyk & M. V. Voitko

Authors
  1. D. B. Kurylyak
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  2. Z. T. Nazarchyk
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  3. M. V. Voitko
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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 43, No. 4, pp. 18–30, July–August, 2007.

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Kurylyak, D.B., Nazarchyk, Z.T. & Voitko, M.V. Stress field in a crack on the interface of materials irradiated with SH-waves. Mater Sci 43, 464–478 (2007). https://doi.org/10.1007/s11003-007-0055-7

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  • DOI: https://doi.org/10.1007/s11003-007-0055-7

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