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Elastic green's function for a bimaterial composite solid containing a crack inclined to the interface

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Abstract

An analytical closed-form expression is derived for the elastic Green's function of a bimaterial composite solid containing a planar interface and a straight crack inclined at an arbitrary angle with the interface. The crack tip is assumed to be at the interface. Both the constituent materials of the composite are assumed to anisotropic. The Green's function satisfies the interfacial boundary conditions of continuous tractions and displacements, and zero tractions at the crack surfaces. The boundary conditions are satisfied by using the virtual force technique. The determination of the virtual forces requires solutions of a Hilbert problem which is obtained by using an orthogonal complex transform. The method is illustrated by applying it to a copper/nickel composite. The Green's function should be useful in the boundary-element method of calculating the stress and the displacement field in the solid.

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Authors and Affiliations

  1. Materials Reliability Division, National Institute of Standards and Technology, 80303, Boulder, CO, USA

    V. K. Tewary

  2. Division of Engineering, Colorado School of Mines, 80401, Golden, CO, USA

    J. R. Berger

Authors
  1. V. K. Tewary
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  2. J. R. Berger
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Communicated by T. Cruse, 13 June 1996

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Tewary, V.K., Berger, J.R. Elastic green's function for a bimaterial composite solid containing a crack inclined to the interface. Computational Mechanics 19, 41–48 (1996). https://doi.org/10.1007/BF02757782

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  • DOI: https://doi.org/10.1007/BF02757782

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