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    The effect of elastic distortions produced by dislocation loops in an inhomogeneous and anisotropic medium on the rotation angles of Moire fringes
    (Wiley-V C H Verlag Gmbh, 2001) Dikici, M
    The non-uniform elastic distortions caused by the discrete elliptical Orowan loops in an inhomogeneous and anisotropic medium have been evaluated by using the equivalent inclusion method of Eshelby, and the effect of these distortions on the rotation angles of Moire fringes has been investigated. The results are given as two line integrals, and by using the numerical method, the rotation angles of Moire fringes arc also obtained from the discrete Orowan loop surrounding an alpha-Fe particle embedded in a Cu matrix. It is seen that the rotation angles, due to the elastic distortions of the discrete Orowan loop, of Moire fringes depend on the anisotropic properties of the materials, the shape and orientation of Orowan loop, and the inhomogeneity effect, and that the inhomogeneity effect is important for both the isotropic and the anisotropic medium.
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    A new approach to the effect of elastic distortions produced by dislocation loops in an infinite anisotropic medium on Moire fringes
    (Wiley-V C H Verlag Gmbh, 2001) Dikici, M
    The elastic distortion fields, and their Taylor's series expansions, produced by the discrete elliptical dislocation loop in an infinitely extended, elastically homogeneous and anisotropic medium are derived by using the derivatives of the elastic Green's tensor. The results are given as two line integrals. The obtained Taylor's series of the distortion fields could be used at any point near the origin of the coordinate system. Numerical results for the effect of the elastic distortions in copper on the rotation angles of Moire fringes are obtained from the first three and first five terms of Taylor's series. It is seen that, to explain the effect of the elastic distortion fields caused by the discrete dislocation loop on the rotation angles of Moire fringes, the first three terms of Taylor's series are sufficient.