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Micromechanical Dynamic Influence of Rigid Disk-Shaped Inclusion on Neighboring Crack in 3D Elastic Matrix

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Abstract:

A 3D time-harmonic problem for an infinite elastic matrix with an arbitrarily located interacting rigid disk-shaped inclusion and a penny-shaped crack is analyzed by the boundary integral equation method. Perfect bonding between the matrix and the moving inclusion is assumed. The crack faces are subjected to time-harmonic loading. The boundary integral equations (BIEs) obtained are solved numerically by the implementation of regularization and discretization procedures. Numerical calculations are carried out for a crack under tensile loading of constant amplitude, where an interacting inclusion is perpendicular to the crack and has the same radius. Both the normal crack-opening-displacement and the mode-I stress intensity factor are investigated for different wave numbers and distances between the crack and the inclusion.

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Periodical:

Materials Science Forum (Volumes 567-568)

Pages:

133-136

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.567-568.133

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Online since:

December 2007

Authors:

Victor V. Mykhas'kiv, O. Khay, Jan Sladek, Vladimir Sladek, Chuan Zeng Zhang

Keywords:

3D Elastic Matrix, Boundary Integral Equation Method, Dynamic Crack Opening Displacement, Dynamic Stress Intensity Factor (DSIF), Time Harmonic Crack Inclusion Interaction

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© 2008 Trans Tech Publications Ltd. All Rights Reserved

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References

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