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Dynamic Stress Intensity Factor of Interfacial Finite Cracks in Orthotropic Materials

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Abstract

The elastodynamic response of an infinite non-homogeneous orthotropic material with an interfacial finite crack under distributed normal and shear impact loads is examined. Solution for the stress intensity factor history around the crack tips is found. Laplace and Fourier transforms are employed to solve the equations of motion leading to a Fredholm integral equation on the Laplace transform domain. The dynamic stress intensity factor history can be computed by numerical Laplace transform inversion of the solution of the Fredholm equation. Numerical values of the dynamic stress intensity factor history for some materials are obtained. Interfacial cracks between two different materials and between two pieces of the same material but different fiber orientation are considered. Bimaterial formulation of a crack problem is shown to converge to the mono-material formulation, derived independently, in the limiting case when both materials are the same.

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Authors and Affiliations

  1. Instituto Tecnológico de Morelia, Av. Tecnológico 1500, Morelia, 58120, Mich, México

    E. Lira-Vergara

  2. Centro de Ingenieria y Desarrollo Industrial, Pie de la Cuesta 702 Desarrollo San Pablo, Queretaro, 76130, Qro., Mexico

    C. Rubio-Gonzalez

Authors
  1. E. Lira-Vergara
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  2. C. Rubio-Gonzalez
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Correspondence to C. Rubio-Gonzalez.

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Lira-Vergara, E., Rubio-Gonzalez, C. Dynamic Stress Intensity Factor of Interfacial Finite Cracks in Orthotropic Materials. Int J Fract 135, 285–309 (2005). https://doi.org/10.1007/s10704-005-4292-1

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  • DOI: https://doi.org/10.1007/s10704-005-4292-1

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