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

Lehmann E, Schmaltz S, Germain S, Fassmann D, Weber C, Loehnert S, Schaper M, Bach FW, Steinmann P, Willner K, Wriggers P (2012)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2012

Journal

Key Engineering Materials Trans Tech Publications

Publisher: Trans Tech Publications

Edited Volumes: Key Engineering Materials

Book Volume: 504-506

Pages Range: 993-998

Conference Proceedings Title: 15th ESAFORM Conference Proceeding

Event location: Erlangen, Germany DE

DOI: 10.4028/www.scientific.net/KEM.504-506.993

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.© (2012) Trans Tech Publications.

Authors with CRIS profile

Stefan Schmaltz Professur für Strukturmechanik Sandrine Germain Lehrstuhl für Technische Mechanik (LTM) Paul Steinmann Lehrstuhl für Technische Mechanik (LTM) Kai Willner Professur für Strukturmechanik

Related research project(s)

C3: Parameter and shape optimization in finite elastoplasticity TRR 73: Manufacturing of complex functional components with variants by using a new sheet metal forming process - Sheet-Bulk Metal Forming Jan. 1, 2009 - Dec. 31, 2012

Involved external institutions

Gottfried Wilhelm Leibniz Universität Hannover DE Germany (DE)

How to cite

APA:

Lehmann, E., Schmaltz, S., Germain, S., Fassmann, D., Weber, C., Loehnert, S.,... Wriggers, P. (2012). Material model identification for DC04 based on the numerical modelling of the polycrystalline microstructure and experimental data. In 15th ESAFORM Conference Proceeding (pp. 993-998). Erlangen, Germany, DE: Trans Tech Publications.

MLA:

Lehmann, Eva, et al. "Material model identification for DC04 based on the numerical modelling of the polycrystalline microstructure and experimental data." Proceedings of the 15th ESAFORM Conference, Erlangen, Germany Trans Tech Publications, 2012. 993-998.

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