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Elastic Green's function for a composite solid with a planar crack in the interface

Published online by Cambridge University Press:  31 January 2011

V. K. Tewary,
R. H. Wagoner and
J. P. Hirth
V. K. Tewary
Affiliation:
Department of Materials Science and Engineering, The Ohio State University, 116 West 19th Avenue, Columbus, Ohio 43210
R. H. Wagoner
Affiliation:
Department of Materials Science and Engineering, The Ohio State University, 116 West 19th Avenue, Columbus, Ohio 43210
J. P. Hirth
Affiliation:
Department of Materials Science and Engineering, The Ohio State University, 116 West 19th Avenue, Columbus, Ohio 43210
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Abstract

The elastic Green's functions for displacements and stresses have been calculated for a composite solid containing a planar crack in a planar interface using the Green's function derived in a previous paper for a line load parallel to the composite interface. The resulting functions can be used to calculate the stress or displacement at any point in the composite for a variety of elastic singularities. As specific applications, the Mode I stress intensity factor of an interfacial crack was calculated as were the Green's functions for the semi-infinite antiplane strain case. The Mode I case shows the near-crack tip oscillations reported by other authors while the Mode III case does not. The newly devised Green's functions are shown to reproduce the results of other authors in the isotropic limit.

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Articles
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Journal of Materials Research , Volume 4 , Issue 1 , February 1989, pp. 124 - 136
Copyright
Copyright © Materials Research Society 1989

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References

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