Abstract
A quasi-static model of axially moving steel strips in a continuous hot-dip galvanizing line is presented. The model provides the bending line of the strip and takes into account the history of elasto-plastic deformation. The numerical integration of the material model of elasto-plastic deformation is algorithmically separated from the solution of the boundary value problem of the bending line by pre-computing sets of one-dimensional candidate relations between the strip curvature and the bending moment. Using this model, the influence of different roll positions in the zinc bath on the mean displacement of the strip at the gas wiping dies and the maximum lateral curvature of the strip (crossbow) can be efficiently calculated and analyzed.
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Open access funding provided by TU Wien (TUW). Financial support by the Austrian Federal Ministry of Science, Research and Economy, the National Foundation for Research, Technology and Development, and voestalpine Stahl GmbH is gratefully acknowledged. The second author gratefully acknowledges financial support provided by the Austrian Academy of Sciences in the form of an APART fellowship at the Automation and Control Institute of Vienna University of Technology.
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First results of this paper have been presented by the authors at the Mini-Symposium “Axially Moving Structures” at PCM-CMM-2015 Conference in Gdansk, see [1].
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Baumgart, M., Steinboeck, A., Saxinger, M. et al. Elasto-plastic bending of steel strip in a hot-dip galvanizing line. Acta Mech 228, 2455–2470 (2017). https://doi.org/10.1007/s00707-017-1824-5
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DOI: https://doi.org/10.1007/s00707-017-1824-5