Influence of plastic orthotropy on clinching of sheet metal

Influence of plastic orthotropy on clinching of sheet metal

Johannes Friedlein, Christian Bielak, Max Böhnke, Mathias Bobbert, Gerson Meschut, Julia Mergheim, Paul Steinmann

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Abstract. Clinching is a versatile mechanical joining method for assembling different sheet metal materials without auxiliary elements in short process times. The joint strength, however, solely relies on the material condition and its targeted interlock formation. Therefore, accurate material models are necessary incorporating all relevant phenomena to reliably predict the material behaviour. We extend a finite elastoplastic material model by incorporating the plastic orthotropy of the sheet metal in the joining process simulation. The anisotropy is captured by different variants of the 3D Hill 1948 yield function with associative and non-associative plastic flow. The constitutive models and the 3D clinching simulation are outlined and utilised to study the influence of plastic orthotropy focusing on the aluminium alloy EN AW-6014.

Anisotropy, Modelling, Clinching

Published online 3/17/2023, 8 pages
Copyright © 2023 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: Johannes Friedlein, Christian Bielak, Max Böhnke, Mathias Bobbert, Gerson Meschut, Julia Mergheim, Paul Steinmann, Influence of plastic orthotropy on clinching of sheet metal, Materials Research Proceedings, Vol. 25, pp 133-140, 2023


The article was published as article 17 of the book Sheet Metal 2023

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