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Seminar Materialmodellierung
WIAS Berlin
Dr. G. Lazzaroni (Universität Würzburg)
Dislocations in nanowire heterostructures: from discrete to continuum
Programm / Abstract:
We discuss an atomistic model for heterogeneous nanowires, allowing for dislocations at the interface. We study the limit as the atomic distance converges to zero, considering simultaneously a dimensional reduction and the passage from the discrete to the continuum. Employing the notion of Gamma-convergence, we establish the minimal energies associated respectively to an elastic (defect-free) configuration and a configuration with dislocations at the interface. This shows under which conditions the dislocations are favoured.
Zeit:
am Donnerstag den 16. Mai 2013 um 11:00
Ort:
Weierstraß-Institut
Hausvogteiplatz 11A
10117 Berlin
Raum: 4.13 4. Etage
eingetragen von kuphal(Olga.Kuphal@wias-berlin.de, 030 20372320)