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RESEARCH PAPERS

Interactions Between Dislocations and Anisotropic Elastic Elliptical Inclusions

[+] Author and Article Information
Wen J. Yen, Chyanbin Hwu

Institute of Aeronautics and Astronautics, National Cheng Kung University, Tainan, Taiwan 70101, Republic of China

J. Appl. Mech 61(3), 548-554 (Sep 01, 1994) (7 pages) doi:10.1115/1.2901494 History: Received April 21, 1992; Revised June 15, 1993; Online March 31, 2008

Abstract

A general field solution for the stresses and displacements of the interactions between dislocations and inclusions has been derived in this paper by applying the Stroh’s formalism and the Muskhelishvili’s method of analytical continuation. The solutions are valid for general elastic anisotropic media under two-dimensional deformation. The interaction energy between dislocations and elastic inclusions is obtained explicitly. The solutions in general are expressed in series form for elastic inclusions. However, for the special cases when the elastic inclusions are replaced by a hole or rigid inclusion, simple closed-form solutions are derived. The general solutions are verified by considering the isotropic media since it is the only solution available in the literature. For the general anisotropic media, a series of contour diagrams for the glide component of the force on a dislocation are provided in this paper to study the effects of inclusion hardness, shape, and matrix anisotropy.

Copyright © 1994 by The American Society of Mechanical Engineers
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