Inverse Parameter Identification for Orthotropic Elasto-Plastic Sheet-Steel

Journal article


Publication Details

Author(s): Söhngen B, Willner K
Journal: Proceedings in Applied Mathematics and Mechanics
Publisher: Gesellschaft für Angewandte Mathematik und Mechanik (GAMM)
Publication year: 2015
Volume: 15
Journal issue: 1
Pages range: 361–362
ISSN: 1617-7061
Language: English


Abstract


In this contribution the Finite Element Model Updating (FEMU) approach is utilized to determine the material parameters of sheet-steel. From experimental testing it is observed that the considered cold-rolled steel exhibits orthotropic behaviour. To regard this in the simulation, a user-implemented material model based on a quadratic yield function is used. Via the method of digital image correlation (DIC), the displacement field of a biaxially loaded specimen is measured from images taken at different stages of loading. Comparing the experimentally determined displacements to those obtained by simulation an error measure is defined which can be minimized by optimization algorithms. Starting with initial values for the orthotropic elasto-plastic material parameters, the FEM model is thus updated consecutively until a specified error margin is reached. (© 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)



FAU Authors / FAU Editors

Söhngen, Benjamin
Professur für Strukturmechanik
Willner, Kai Prof. Dr.-Ing.
Professur für Strukturmechanik


Additional Organisation
Sonderforschungsbereich/Transregio 73 Umformtechnische Herstellung von komplexen Funktionsbauteilen mit Nebenformelementen aus Feinblechen - Blechmassivumformung
Sonderforschungsbereich/Transregio 73, C3: Parameter- und Formoptimierung in der finiten Elastoplastizität


Research Fields

Uncertainty Quantification
Professur für Strukturmechanik


How to cite

APA:
Söhngen, B., & Willner, K. (2015). Inverse Parameter Identification for Orthotropic Elasto-Plastic Sheet-Steel. Proceedings in Applied Mathematics and Mechanics, 15(1), 361–362. https://dx.doi.org/10.1002/pamm.201510171

MLA:
Söhngen, Benjamin, and Kai Willner. "Inverse Parameter Identification for Orthotropic Elasto-Plastic Sheet-Steel." Proceedings in Applied Mathematics and Mechanics 15.1 (2015): 361–362.

BibTeX: 

Last updated on 2018-26-07 at 22:10