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We have decided to discontinue the publication of preprints on our preprint server as of 1 March 2024. The publication culture within mathematics has changed so much due to the rise of repositories such as ArXiV (www.arxiv.org) that we are encouraging all institute members to make their preprints available there. An institute's repository in its previous form is, therefore, unnecessary. The preprints published to date will remain available here, but we will not add any new preprints here.

MiS Preprint
65/2002

A nonsingular solution of the edge dislocation in the gauge theory of dislocations

Markus Lazar

Abstract

A (linear) nonsingular solution for the edge dislocation in the translational gauge theory of defects is presented. The stress function method is used and a modified stress function is obtained. All field quantities are globally defined and the solution agrees with the classical solution for the edge dislocation in the far field. The components of the stress, strain, distortion and displacement field are also defined in the dislocation core region and they have no singularity there.

The dislocation density, moment and couple stress for an edge dislocation are calculated. The solution for the stress and strain field obtained here is in agreement with those obtained by Gutkin and Aifantis through an analysis of the edge dislocation in the strain gradient elasticity. Additionally, the relation between the gauge theory and Eringen's so-called nonlocal theory of dislocations is given.

Received:
Aug 5, 2002
Published:
Aug 5, 2002
Keywords:
elastoplasticity, dislocation theory

Related publications

inJournal
2003 Repository Open Access
Markus Lazar

A nonsingular solution of the edge dislocation in the gauge theory of dislocations

In: Journal of physics / A, 36 (2003) 5, pp. 1415-1437