Application of a 3d-continuum theory of dislocations to a problem of constrained plastic flow: Microbending of a thin film

Stefan Sandfeld*, Thomas Hochrainer, Michael Zaiser

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The advancing miniaturisation of e.g. microelectronic devices leads to an increasing interest in physically motivated continuum theories of plasticity in small volumes. Such theories need to be based on the averaged dynamics of dislocations. Preserving the line-like character of these defects, however, posed serious problems for the development of dislocation-based continuum theories, while continuum theories based on scalar dislocation densities necessarily stay on a phenomenological level. Within this work we apply a dislocation-based continuum theory, which is based on a physically meaningful averaging of dislocation lines, to the benchmark problem of bending of a free-standing thin film.

Original languageEnglish
Title of host publicationMechanical Behavior at Small Scales - Experiments and Modeling
EditorsJun Lou
PublisherMaterials Research Society
Pages143-148
Number of pages6
Volume1224
ISBN (Print)978-1-60511-197-1
Publication statusPublished - 2010
Event2009 MRS Fall Meeting - Boston, MA, United States
Duration: 29 Nov 20093 Dec 2009

Conference

Conference2009 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period29/11/093/12/09

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

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