Simulation of forming processes by FEM with a Bingham fluid model

M. Bercovier*, M. Engelman, M. Fortin, N. Goldberger

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We model the forming process as a fluid flow. A finite element program, FIDAP, which analyses flow problems, was used to calculate velocity and strain rates at points throughout the material during the deformation process. This allows predictions to be made on the shape and quality of the resulting part. The stress‐strain relation we used models the plastic flow of metals (Bingham fluids). The FEM approximation of such a fluid is tested by comparing results for a simple analytical example. In forming processes provision must be made for friction between dye and workpiece, and the program was modified accordingly. Two classical ring forming simulations are compared to published results.

Original languageEnglish
Pages (from-to)197-218
Number of pages22
JournalInternational Journal for Numerical Methods in Fluids
Volume6
Issue number4
DOIs
StatePublished - Apr 1986

Keywords

  • Bingham Fluids
  • Finite Elements
  • Forming Process
  • Non‐Newtonian Flows

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