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Computer Simulation of Sheet Metal Forming
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English
Abstract
This paper describes some computer software developed at Michigan Technological University for the simulation of sheet metal forming which is a large-strain plastic deformation process. The approach taken is not the typical incremental solution approach, where one starts from the flat blank and steps are taken (hopefully) toward the final desired geometry, but a fast interactive one where the known surface geometry is mapped directly back to the flat blank. The strains are then calculated from the geometry change, and calculated strains are compared with experimental strains on a forming limit diagram (FLD) to determine formability.
The theory of the deformation process is given in a number of earlier papers. This paper gives example results for several cases of axisymmetric and nonsymmetric geometries.
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Citation
Gerdeen, J. and Soper, D., "Computer Simulation of Sheet Metal Forming," SAE Technical Paper 851502, 1985, https://doi.org/10.4271/851502.Also In
References
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- Gerdeen J.C. “An Analysis of Axisymmetric Sheet Metal Forming” Proc. NAMRC-II 1974 350
- Gerdeen J.C. “Development of a Computer Program “AXIFORM” for the Analysis of Forming of Axisymmetric Sheet Metal Parts” Proc. NAMRC-XII, SME Trans. 1984 209 213
- Gerdeen J.C. “Nonsymmetric Large-Deformation Analysis of Sheet Metal Forming” AIME/TMS Volume on Computer Modelling of the Sheet Metal Forming Process April 1985
- Lee D. “Computer-Aided Control of Sheet Metal Forming Processes” J. of Metals 34 10 Nov. 1982 20
- Ro Sowerby, E. Chu Duncan J.L. “Determination of Large Strains in Metal-forming” J. Strain Analysis 7 2 1982 95
- Duncan J.L. Sowerby R. Chu E. “Keynote Paper: The Development of Sheet Metal Modelling” Proc. of 12th Annual Automotive Materials Symp., Computer Modeling of the Sheet Metal Forming Process TMS-AIME April 28-30 1985
- Gerdeen J.C. Daudi A. “Formability Limits of Relatively Thick Sheet Metal as Determined by the Fukui Conical Cup Test” Trans. ASME, J. of Engr. for Industry 105 4 276 281
- Brazier, W. Personal Communication from Ford Motor Company May 1 1985