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

authored by: Eva Lehmann, Stefan Schmaltz, Sandrine Germain, Dennis Faßmann, Stefan Löhnert, Mirko Schaper, Friedrich Wilhelm Bach, Paul Steinmann, Kai Willner, Peter Wriggers, Christoph Weber
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.
Organisation(s): Institute of Continuum Mechanics
External Organisation(s): Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU Erlangen-Nürnberg)
Type: Conference contribution
Pages: 993-998
No. of pages: 6
Publication date: 23.02.2012
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General Materials Science, Mechanics of Materials, Mechanical Engineering
Electronic version(s): https://doi.org/10.4028/www.scientific.net/KEM.504-506.993 (Access: Unknown)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inproceedings{c7d02c92156f4dcd8fba5a093119a7f3,
title = "Material model identification for DC04 based on the numerical modelling of the polycrystalline microstructure and experimental data",
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.",
keywords = "Anisotropic finite elastoplasticity, Homogenisation, Material modelling, Sheet-bulk-metal forming",
author = "Eva Lehmann and Stefan Schmaltz and Sandrine Germain and Dennis Fa{\ss}mann and Stefan L{\"o}hnert and Mirko Schaper and Bach, {Friedrich Wilhelm} and Paul Steinmann and Kai Willner and Peter Wriggers and Christoph Weber",
year = "2012",
month = feb,
day = "23",
doi = "10.4028/www.scientific.net/KEM.504-506.993",
language = "English",
isbn = "9783037853665",
series = "Key Engineering Materials",
pages = "993--998",
booktitle = "Material Forming ESAFORM 2012",
note = "15th Conference of the European Scientific Association on Material Forming, ESAFORM 2012 ; Conference date: 14-03-2012 Through 16-03-2012",
}