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Computational Strategies for Speeding-Up F.E. Simulations of Metal Forming Processes

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Advances in Computational Plasticity

Part of the book series: Computational Methods in Applied Sciences ((COMPUTMETHODS,volume 46))

Abstract

An overview of various numerical methods developed for speeding-up computations is presented in the field of the bulk material forming under solid state, which is characterized by complex and evolving geometries requiring frequent remeshings and numerous time increments. These methods are oriented around the axis that constitutes the meshing problem. The multi-mesh method allows to optimally solve several physics involved on the same domain, according to its finite element discretization with several different meshes, for example in the cogging or cold pilgering processes. For quasi steady-state problems and problems with quite pronounced localization of deformation, such as Friction Stir Welding (FSW) or High Speed Machining, an Arbitrary Lagrangian or Eulerian formulation (ALE) with mesh adaptation shows to be imperative. When the problem is perfectly steady, as for the rolling of long products, the direct search for the stationary state allows huge accelerations. In the general case, where no process specificity can be used to solve the implicit equations, the multigrid method makes it possible to construct a much more efficient iterative solver, which is especially characterized by an almost linear asymptotic cost.

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Author information

Authors and Affiliations

  1. MINES ParisTech, PSL Research University, CEMEF, CNRS UMR 7635, CS 10207 rue Claude Daunesse, 06904, Sophia Antipolis Cedex, France

    Lionel Fourment, Koffi K’podzo & Frédéric Vi

  2. EPFL, Biotech Campus, Batîment B1, Chemin des Mines, 9, 1211, Geneva, Switzerland

    Fabien Delalondre

  3. Transvalor, Parc de haute technologie de Sophia Antipolis, 06255, Mougins Cedex, France

    Ugo Ripert

  4. School of Engineering, Lebanese International University, PO Box 146404, Beirut, Lebanon

    Mohamad Ramadan

  5. Ecole Centrale de Nantes, ICI - Institut du Calcul Intensif, 44321, Nantes, France

    Hugues Digonnet

Authors
  1. Lionel Fourment
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  2. Koffi K’podzo
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  3. Fabien Delalondre
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  4. Ugo Ripert
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  5. Mohamad Ramadan
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  6. Frédéric Vi
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  7. Hugues Digonnet
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Correspondence to Lionel Fourment .

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Editors and Affiliations

  1. CIMNE, Universitat Politècnica de Catalunya, Barcelona, Spain

    Eugenio Oñate

  2. Swansea University, Swansea, United Kingdom

    Djordje Peric

  3. Swansea University, Swansea, United Kingdom

    Eduardo de Souza Neto

  4. CIMNE, Universitat Politècnica de Catalunya, Barcelona, Spain

    Michele Chiumenti

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Fourment, L. et al. (2018). Computational Strategies for Speeding-Up F.E. Simulations of Metal Forming Processes. In: Oñate, E., Peric, D., de Souza Neto, E., Chiumenti, M. (eds) Advances in Computational Plasticity. Computational Methods in Applied Sciences, vol 46. Springer, Cham. https://doi.org/10.1007/978-3-319-60885-3_4

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  • DOI: https://doi.org/10.1007/978-3-319-60885-3_4

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-60884-6

  • Online ISBN: 978-3-319-60885-3

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