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Material model identification for DC04 based on the numerical modelling of the polycrystalline microstructure and experimental data

  • Eva Lehmann
  • , Stefan Schmaltz
  • , Sandrine Germain*
  • , Dennis Faßmann
  • , Stefan Löhnert
  • , Mirko Schaper
  • , Friedrich Wilhelm Bach
  • , Paul Steinmann
  • , Kai Willner
  • , Peter Wriggers
  • , Christoph Weber
  • *Corresponding author for this work

Research output: Chapter in book/report/conference proceedingConference contributionResearchpeer review

Abstract

Sheet-bulk-metal forming processes require an accurate material model which is derived in this contribution. The microscopic model is based on a simulation of a real microstructure. A validation on the macroscopical scale is performed through the reproduction of the experimentally calculated yield surface based on the homogenised structural response of a corresponding deformed representative volume element (RVE). The microstructural material model is also compared with a macroscopical phenomenological model based on logarithmic strains. The homogenised microscopic model and the phenomenological macroscopic model are in good agreement with the evolution of the stresses and strains obtained during the experiments.

Original languageEnglish
Title of host publicationMaterial Forming ESAFORM 2012
Pages993-998
Number of pages6
DOIs
Publication statusPublished - 23 Feb 2012
Event15th Conference of the European Scientific Association on Material Forming, ESAFORM 2012 - Erlangen, Germany
Duration: 14 Mar 201216 Mar 2012

Publication series

NameKey Engineering Materials
Volume504-506
ISSN (Print)1013-9826

Conference

Conference15th Conference of the European Scientific Association on Material Forming, ESAFORM 2012
Country/TerritoryGermany
CityErlangen
Period14 Mar 201216 Mar 2012

Keywords

  • Anisotropic finite elastoplasticity
  • Homogenisation
  • Material modelling
  • Sheet-bulk-metal forming

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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