Self-interaction of an arbitrary moving dislocation
| Autor: | P.O. Kazinski, V.A. Ryakin, A.A. Sokolov |
|---|---|
| Rok vydání: | 2022 |
| Předmět: |
Condensed Matter - Materials Science
скольжении дислокаций Applied Mathematics Mechanical Engineering теория дислокаций Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences Condensed Matter - Soft Condensed Matter динамика дислокации Condensed Matter Physics Condensed Matter::Materials Science Mechanics of Materials Modeling and Simulation Soft Condensed Matter (cond-mat.soft) General Materials Science |
| Zdroj: | International journal of solids and structures. 2022. Vol. 242. P. 111538 (1-24) |
| ISSN: | 0020-7683 |
| DOI: | 10.1016/j.ijsolstr.2022.111538 |
| Popis: | The action functional for a linear elastic medium with dislocations is given. The equations of motion following from this action reproduce the Peach-K\"{o}hler and Lorentzian forces experienced by dislocations. The explicit expressions for singular and finite parts of the self-force acting on a curved dislocation are derived in the framework of linear theory of elasticity of an isotropic medium. The velocity of dislocation is assumed to be arbitrary but less than the shear wave velocity. The slow speed and near-sonic motions of a dislocation are investigated. In the near-sonic limit, the explicit expression for the leading contribution to the self-force is obtained. In the case of slowly moving dislocations, the effective equations of motion derived in the present paper reproduce the known results. Comment: 43 pp., some comments added and some terms changed |
| Databáze: | OpenAIRE |
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