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Impact response of a crack in a semi-infinite body with a surface layer under longitudinal shear

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Summary

The impact response of a crack in a semi-infinite body with a surface layer which is subjected to antiplane shear deformation is considered in this study. The semi-infinite body contains a crack near an interface. Using Laplace and Fourier transforms, the case of a crack perpendicular to the interface is reduced to a set of triple integral equations in the Laplace transform plane. The solution to the triple integral equations is then expressed in terms of a singular integral equation of the first kind. A numerical Laplace inversion routine is used to recover the time dependence of the solution. The dynamic stress intensity factors at the crack tips are obtained for several values of time, material constants, and geometrical parameters.

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  1. Department of Mechanical Engineering II Faculty of Engineering, Tohoku University, 980, Sendai, Japan

    Y. Shindo

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  1. Y. Shindo
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Shindo, Y. Impact response of a crack in a semi-infinite body with a surface layer under longitudinal shear. Acta Mechanica 73, 147–162 (1988). https://doi.org/10.1007/BF01177035

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  • DOI: https://doi.org/10.1007/BF01177035

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