CPFEM calibration of 3D Vegter yield locus for DWI battery cans
Saurabh RATHORE, Karo SEDIGHIANI, Eisso ATZEMA, Celal SOYARSLAN, Ton VAN DEN BOOGAARD
Abstract. In the Drawing and Wall Ironing (DWI) process used in battery can-making, thin sheets experience high contact pressures and out-of-plane shear, necessitating advanced yield criteria in finite element simulations. Vegter and van den Boogaard, in [1], introduced a 2D (plane stress) yield criterion based on second-order Bézier curves designed to fit the experimental yield points exactly. This criterion was later extended to 3D by van Riel and van den Boogaard [2]. The accuracy of such advanced yield criteria in predicting earing patterns during typical cup drawing simulations is well established. However, their validity in simulating DWI processes remains poorly understood, particularly under low clearance between the die and punch. This study investigates the limitations and applicability of the isotropic hardening Vegter 3D model in the DWI simulations of battery can-making. The yield point evolution was analyzed using Crystal Plasticity Finite Element Method (CPFEM) simulations under DWI strain conditions. By comparing these simulation results with the predictions of the isotropic hardening Vegter 3D model, the aim is to determine its validity boundaries and explore its effectiveness for accurately modeling the DWI process.
Keywords
Yield Locus, CPFEM, RVE, DWI, Virtual Experiments
Published online 5/7/2025, 8 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Saurabh RATHORE, Karo SEDIGHIANI, Eisso ATZEMA, Celal SOYARSLAN, Ton VAN DEN BOOGAARD, CPFEM calibration of 3D Vegter yield locus for DWI battery cans, Materials Research Proceedings, Vol. 54, pp 1926-1933, 2025
DOI: https://doi.org/10.21741/9781644903599-207
The article was published as article 207 of the book Material Forming
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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