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Title of Journal: Acta Mechanica

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Abbravation: Acta Mechanica

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Springer-Verlag

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10.1007/bf01029483

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1619-6937

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Electroelastic stress analysis for a screw disloc

Authors: Z M Xiao J Yan B J Chen
Publish Date: 2004/11/04
Volume: 172, Issue: 3-4, Pages: 237-249
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Abstract

The electroelastic stress investigation on the interaction problem of a piezoelectric screw dislocation near a coated inclusion in a piezoelectric material has been carried out In our study three dissimilar material phases are involved the matrix the inclusion and the coating layer All the three materials are piezoelectric and with different material constants Explicit closedform analytical solutions for the stress and electric displacement fields are obtained by using the complex variable method The image force acting on the screw dislocation is calculated by using the generalized PeachKoehler formula Numerical examples for different material constant combinations are performed The influences of material properties of the inclusion and the coating layer on the image forces are examined and discussed

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