Upscaling of dislocation walls in finite domains

P.J.P. Meurs, van, A. Muntean, M.A. Peletier

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

10 Citaten (Scopus)
93 Downloads (Pure)

Samenvatting

We wish to understand the macroscopic plastic behaviour of metals by upscaling the micro-mechanics of dislocations. We consider a highly simplified dislocation network, which allows our discrete model to be a one dimensional particle system, in which the interactions between the particles (dislocation walls) are singular and non-local. As a first step towards treating realistic geometries, we focus on finite-size effects rather than considering an infinite domain as typically discussed in the literature. We derive effective equations for the dislocation density by means of G-convergence on the space of probability measures. Our analysis yields a classification of macroscopic models, in which the size of the domain plays a key role. Key words: Plasticity; Multiscale; Straight edge-dislocations; Discrete-to-continuum limit; G-convergence
Originele taal-2Engels
Pagina's (van-tot)749-781
TijdschriftEuropean Journal of Applied Mathematics
Volume25
Nummer van het tijdschrift6
DOI's
StatusGepubliceerd - 2014

Vingerafdruk

Duik in de onderzoeksthema's van 'Upscaling of dislocation walls in finite domains'. Samen vormen ze een unieke vingerafdruk.

Citeer dit