Elastic fields of a dislocation inclined to a free surface

A direct method of calculating the deformation fields of an inclined dislocation in a semi‐infinite medium is developed. A quantitative analysis of the elastic field distribution shows that a free surface localizes elastic fields near the dislocation nuclei and reduces them at large distances. Redis...

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Veröffentlicht in:	Physica status solidi. A, Applied research Applied research, 1985-07, Vol.90 (1), p.215-224
Hauptverfasser:	Filippov, A. P., Gaidukov, G. N., Maksimov, S. K.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: structure, mechanical and thermal properties Deformation and plasticity (including yield, ductility, and superplasticity) Exact sciences and technology Mechanical and acoustical properties of condensed matter Mechanical properties of solids Physics
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	A direct method of calculating the deformation fields of an inclined dislocation in a semi‐infinite medium is developed. A quantitative analysis of the elastic field distribution shows that a free surface localizes elastic fields near the dislocation nuclei and reduces them at large distances. Redistribution of elastic fields results in a sign inversion of some components of the stress tensor. For a screw dislocation in the region close to the surface there appears dilatation with an amplitude comparable with that of an edge dislocation. [Russian Text Ignored].
ISSN:	0031-8965 1521-396X
DOI:	10.1002/pssa.2210900121