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Semi-analytical approach for plane strain sheet metal forming using a bending-under-tension numerical model

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Abstract

In this paper, we revisit the plane strain deep-drawing process. We show that a detailed analysis of the physical process may result in a dramatic reduction of computing time when the problem is split into several regions undergoing well-defined loading paths. The proposed approach allows us to assess the springback of the formed sheet in a quasi-instant time and is thus suitable in the initial design phase and provides a fast and economical way to determine the influence of the numerous parameters involved in sheet metal forming. We present a semi-analytical model that has been developed for sheet metal forming mainly subjected to plane strain bending-under-tension and involving large strains. The sheet is considered to be an assembly of regions where the loading is considered homogeneous in the length direction. A handful of finite elements or even a single element is sufficient to compute the loading path followed by each region. The contact is circumvented by constraining the kinematics with appropriate boundary conditions and the approach is valid for any material behavior law. The semi-analytical model is applied to standard test cases and then compared with full-scale simulations.

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Acknowledgments

This research was conducted as part of the OASIS project, supported by OSEO within the contract FUI no.F1012003Z.

The authors acknowledge the support of Labex MS2T.

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Authors and Affiliations

  1. Laboratoire Roberval, UMR 7337 UTC-CNRS, Université de Technologie de Compiègne, 60205, Compiegne, France

    Guénhaël Le Quilliec, Piotr Breitkopf, Jean-Marc Roelandt & Pierre Juillard

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  1. Guénhaël Le Quilliec
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  2. Piotr Breitkopf
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  3. Jean-Marc Roelandt
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  4. Pierre Juillard
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Correspondence to Guénhaël Le Quilliec.

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Le Quilliec, G., Breitkopf, P., Roelandt, JM. et al. Semi-analytical approach for plane strain sheet metal forming using a bending-under-tension numerical model. Int J Mater Form 7, 221–232 (2014). https://doi.org/10.1007/s12289-012-1122-7

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  • DOI: https://doi.org/10.1007/s12289-012-1122-7

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