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An analytically-numerical approach for the analysis of an interface crack with a contact zone in a piezoelectric bimaterial compound

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Abstract

An interface crack with an artificial contact zone at the right-hand side crack tip between two dissimilar finite-sized piezoelectric materials is considered under remote mixed-mode loading. To find the singular electromechanical field at the crack tip, an asymptotic solution is derived in connection with the conventional finite element method. For mechanical loads, the stress intensity factors at the singular points are obtained. As a particular case of this solution, the contact zone model (in Comninou’s sense) is derived. A simple transcendental equation and an asymptotic formula for the determination of the real contact zone length are derived. The dependencies of the contact zone lengths on external load coefficients are illustrated in graphical form. For a particular case of a short crack with respect to the dimensions of the bimaterial compound, the numerical results are compared to the exact analytical solutions, obtained for a piezoelectric bimaterial plane with an interface crack.

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Authors and Affiliations

  1. Department of Computational Mathematics, Dniepropetrovsk National University, Nauchny str. 13, Dniepropetrovsk, 49050, Ukraine

    V. Govorukha

  2. Forschungszentrum Karlsruhe, Institut for Material Research II, Postfach 3640, 76021, Karlsruhe, Germany

    V. Govorukha & M. Kamlah

Authors
  1. V. Govorukha
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  2. M. Kamlah
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Correspondence to V. Govorukha.

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Govorukha, V., Kamlah, M. An analytically-numerical approach for the analysis of an interface crack with a contact zone in a piezoelectric bimaterial compound. Arch Appl Mech 78, 575–586 (2008). https://doi.org/10.1007/s00419-007-0179-0

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  • DOI: https://doi.org/10.1007/s00419-007-0179-0

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