Interaction of a screw dislocation with a notch in a piezoelectric bi-material
type: Item
instance of: scholarly article
title: Interaction of a screw dislocation with a notch in a piezoelectric bi-material
zbMATH Open document ID: 1145.74346
author: Xianqiang Yang
published in: Archive of Applied Mechanics
publication date: 2005-03-21T00:00:00Z
review text: The electro-elastic interaction of a screw dislocation and a notch in a piezoelectric bi-material is analyzed. The electro-elastic fields induced by the dislocation are derived using the conformal mapping and the image-dislocation approach, where the solution for a piezoelectric bi-material without a notch is used as a base. The stress and the electric displacement intensity factors of the notch and the image force on the dislocation are given explicitly. We find that intensity factors are expressed in terms of the effective material constants, while the radial component of the image force is independent of the notch angle and the angular position of the dislocation in the polar coordinate system. Numerical results for the image force are provided for the use when one of the two media is purely elastic. They illustrate the behavior of the dislocation in the neighborhood of the notch.
Mathematics Subject Classification ID: 74F15
Mathematics Subject Classification ID: 74G70
zbMATH DE Number: 2147611
zbMATH Keywords: Piezoelectricity
zbMATH Keywords: Bi-material
zbMATH Keywords: Screw dislocation
zbMATH Keywords: Intensity factor
zbMATH Keywords: Image force
zbMATH Keywords: Notch
zbMATH Keywords: Electro-elasticity
MaRDI profile type: Publication
full work available at URL: s00419-003-0301-x
OpenAlex ID: W2073136946
DOI: 10.1007/S00419-003-0301-X
description: scientific article; zbMATH DE number 2147611