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Microsystem Technologies

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01.01.2009 | Technical Paper

Nonsingular dislocation and crack fields: implications to small volumes

verfasst von: J. Kioseoglou, I. Konstantopoulos, G. Ribarik, G. P. Dimitrakopulos, E. C. Aifantis

Erschienen in: Microsystem Technologies | Ausgabe 1/2009

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Abstract

The simplest, yet robust, gradient elasticity theory (GRADELA) as first introduced by the last author is used to deduce nonsingular expressions for the stress and strain fields near dislocation lines and crack tips. These expressions are particularly useful for small volumes where the details of the deformation field need to be known for interpreting related experimental observations. Various implications are discussed in relation to the determination of the size of dislocation cores, the size of maximum stress or maximum strain in crack tips, and the interpretation of X-ray line profile measurements in determining internal stresses.

Vorheriger Artikel Exploring the applicability of gradient elasticity to certain micro/nano reliability problems

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Titel: Nonsingular dislocation and crack fields: implications to small volumes
verfasst von: J. Kioseoglou
I. Konstantopoulos
G. Ribarik
G. P. Dimitrakopulos
E. C. Aifantis
Publikationsdatum: 01.01.2009
Verlag: Springer-Verlag
Erschienen in: Microsystem Technologies / Ausgabe 1/2009
Print ISSN: 0946-7076
Elektronische ISSN: 1432-1858
DOI: https://doi.org/10.1007/s00542-008-0700-6

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