Shear wave-front motion from a nonuniform dislocation
type: Item
instance of: scholarly article
title: Shear wave-front motion from a nonuniform dislocation
zbMATH Open document ID: 0581.73028
DOI: 10.1016/0020-7225(86)90117-5
author: B. George
published in: International Journal of Engineering Science
publication date: 1986-01-01T00:00:00Z
review text: The model of a nonuniformly moving screw dislocation in an unbounded elastic medium is employed to analyze the shear wave-front motion. The elastic motion near the shear wave-front is obtained by inversion to the time domain of the dominant high frequency term. The displacement discontinuity of the dislocation considered is of the form \(\Delta u_ z=U(x)f(t-t_ R(x))\). Necessary and sufficient conditions for the functional dependence of U(x),f(t) and \(t_ R(x)\) are established for the existence of a nonsingular velocity field.
Mathematics Subject Classification ID: 74J10
Mathematics Subject Classification ID: 74A60
Mathematics Subject Classification ID: 74M25
zbMATH DE Number: 3930441
zbMATH Keywords: nonuniformly moving screw dislocation
zbMATH Keywords: unbounded elastic medium
zbMATH Keywords: shear wave-front motion
zbMATH Keywords: elastic motion
zbMATH Keywords: inversion to the time domain
zbMATH Keywords: dominant high frequency term
zbMATH Keywords: displacement discontinuity
zbMATH Keywords: Necessary and sufficient conditions for the functional dependence
zbMATH Keywords: existence of a nonsingular velocity field
MaRDI profile type: Publication
full work available at URL: 0020-7225(86)90117-5
OpenAlex ID: W2052281839
cites work: Q5805882
cites work: The Equation of Motion of a Dislocation
cites work: Accelerating dislocations: wave-front behavior
Recommended article: The singularities of nonuniformly moving dislocations
Recommended article: On the equation of motion and the near-field of a nonuniformly moving dislocation
Recommended article: Nonuniform motion of an edge dislocation in an anisotropic solid. I
Recommended article: Nonuniform motion of an edge dislocation in an anisotropic solid. II
Recommended article: Q5752079
Recommended article: Q3436965
Recommended article: Noncrystallographic Motion of a Dislocation as a Fine Mixture of Rectilinear Paths
Recommended article: Diffraction of horizontal shear waves by a moving interface crack
Recommended article: On the elastic field from a nonuniform dislocation
description: scientific article; zbMATH DE number 3930441