Numerical model for dislocation transmission across phase boundaries

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Abstract

A 2D FEM approach for studying dislocation-phase boundary interaction is proposed. By adopting the classical Peierls-Nabarro model as a glide plane model, a natural interplay between dislocations, external boundaries and phase boundary is provided. Thereby the local dislocation induced stress field in the vicinity of the phase boundary can be fully captured. Modelling dislocation dipoles (loops) in a finite-sized grain introduces a grain-size dependency. With this model the effect of dislocations piling up against a phase boundary and
dislocation transmission are studied for a glide plane perpendicular to a fully coherent and non-damaging interface.
Original languageEnglish
Title of host publicationContributions to the Foundations of Multidisciplinary Research in Mechanics
Subtitle of host publicationpapers presented during the 24th International Congress of Theoretical and Applied Mechanics (ICTAM 2016) held in Montreal, Canada, August 22-26, 2016
EditorsJ.M. Floryan
PublisherIUTAM
Pages2534-2535
Number of pages2
Volume3
ISBN (Electronic)978-0-660-05459-9
Publication statusPublished - 2017
Event24th International Congress of Theoretical and Applied Mechanics (ICTAM 2016) - Montréal, Canada
Duration: 21 Aug 201626 Aug 2016

Conference

Conference24th International Congress of Theoretical and Applied Mechanics (ICTAM 2016)
Abbreviated titleXXIV ICTAM
CountryCanada
CityMontréal
Period21/08/1626/08/16

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