Towards Frank-Read sources in the continuum dislocation dynamics theory

Stefan Sandfeld*, Thomas Hochrainer

*Korrespondierende/r Autor/in für diese Arbeit

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem Konferenzband

Abstract

Classical continuum theories of plasticity are not able to predict the mechanical response of micro devices properly. The reason is that they do not account for the evolution of the dislocation micro structure. This paper is concerned with the application of a new dislocation - based continuum theory - the "Continuum Dislocation Dynamics" theory (CDD), which preserves many essential information of systems of dislocations while retaining the computational efficiency that is inherent to all continuous descriptions. In particular, we will discuss the creation of dislocations by a Frank - Read (FR) source in the context of CDD. We demonstrate how the time - intermittent activation of sources can be incorporated into a continuous description and discuss why the sources are eventually rendered inactive.

Originalspracheenglisch
TitelNumerical Analysis and Applied Mathematics, ICNAAM 2011 - International Conference on Numerical Analysis and Applied Mathematics
Seiten1531-1534
Seitenumfang4
Band1389
DOIs
PublikationsstatusVeröffentlicht - 2011
VeranstaltungInternational Conference on Numerical Analysis and Applied Mathematics: Numerical Analysis and Applied Mathematics, ICNAAM 2011 - Halkidiki, Griechenland
Dauer: 19 Sep 201125 Sep 2011

Konferenz

KonferenzInternational Conference on Numerical Analysis and Applied Mathematics: Numerical Analysis and Applied Mathematics, ICNAAM 2011
LandGriechenland
OrtHalkidiki
Zeitraum19/09/1125/09/11

ASJC Scopus subject areas

  • !!Physics and Astronomy(all)

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  • Dieses zitieren

    Sandfeld, S., & Hochrainer, T. (2011). Towards Frank-Read sources in the continuum dislocation dynamics theory. in Numerical Analysis and Applied Mathematics, ICNAAM 2011 - International Conference on Numerical Analysis and Applied Mathematics (Band 1389, S. 1531-1534) https://doi.org/10.1063/1.3637918