Söhngen B, Willner K (2015)
Publication Language: English
Publication Type: Journal article
Publication year: 2015
Publisher: Gesellschaft für Angewandte Mathematik und Mechanik (GAMM)
Book Volume: 15
Pages Range: 361–362
Journal Issue: 1
Open Access Link: http://onlinelibrary.wiley.com/doi/10.1002/pamm.201510171/pdf
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)
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.
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