Interaction of a Screw Dislocation with an Interfacial Crack in Two Dissimilar Piezoelectric Layers

Abstract:

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A screw dislocation interacting with a semi-infinite interfacial crack in two dissimilar piezoelectric layers is studied. The complex variable method and the conformal mapping technique are employed to obtain the solution of the problem. The stress and electric displacement intensity factors are given explicitly. We find that the stress and electric displacement intensity factors depend on the effective electro-elastic material constants. Numerical example shows that the influence of piezoelectric effect on the crack tip shielding is significant.

Info:

Periodical:

Key Engineering Materials (Volumes 261-263)

Edited by:

Kikuo Kishimoto, Masanori Kikuchi, Tetsuo Shoji and Masumi Saka

Pages:

141-146

Citation:

J. X. Liu et al., "Interaction of a Screw Dislocation with an Interfacial Crack in Two Dissimilar Piezoelectric Layers", Key Engineering Materials, Vols. 261-263, pp. 141-146, 2004

Online since:

April 2004

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$38.00

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