Identification of nonlinear kinematic hardening parameters for sheet metal from biaxial loading tests

Söhngen B, Willner K (2017)

Publication Language: English

Publication Type: Conference contribution, Conference Contribution

Publication year: 2017

Pages Range: 373-384

Conference Proceedings Title: XIV International Conference on Computational Plasticity. Fundamentals and Applications

Event location: Barcelona ES

Abstract

In this work an anisotropic material model at finite strains with nonlinear mixed (isotropic and kinematic) hardening is used for the identification of the hardening parameters of sheet steel. The algorithmic system is thereby reduced to a single equation return mapping. For the identification, a cruciform specimen is loaded biaxially in an alternating shear test to provoke the kinematic hardening behavior and prevent the sheet from buckling. The material parameters are found through an optimization strategy by comparing the deformation field from the experiment to that from a finite element (FE) simulation. The resulting cost function is minimized by means of a gradient-based method.

Authors with CRIS profile

Benjamin Söhngen Sonderforschungsbereich/Transregio 73 Umformtechnische Herstellung von komplexen Funktionsbauteilen mit Nebenformelementen aus Feinblechen - Blechmassivumformung Kai Willner Professur für Strukturmechanik

Additional Organisation(s)

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

How to cite

APA:

Söhngen, B., & Willner, K. (2017). Identification of nonlinear kinematic hardening parameters for sheet metal from biaxial loading tests. In Oñate E., Owen D.R.J. , Peric D. , Chiumenti M. (Eds.), XIV International Conference on Computational Plasticity. Fundamentals and Applications (pp. 373-384). Barcelona, ES.

MLA:

Söhngen, Benjamin, and Kai Willner. "Identification of nonlinear kinematic hardening parameters for sheet metal from biaxial loading tests." Proceedings of the XIV International Conference on Computational Plasticity (COMPLAS 2017), Barcelona Ed. Oñate E., Owen D.R.J. , Peric D. , Chiumenti M., 2017. 373-384.

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