Draw-bead simulation by an elasto-plastic finite element method with directional reduced integration

An elasto-plastic finite element method is adopted to simulate draw-bead formation and draw-in process through the draw-bead. The finite element method code has to deal with a proper contact algorithm and a stress evaluation algorithm, since the sheet metal undergoes large deformation and rotation w...

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Bibliographic Details
Published inJournal of materials processing technology Vol. 63; no. 1; pp. 666 - 671
Main Authors Choi, T.H., Huh, H., Chun, B.K., Lee, J.H.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 1997
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Summary:An elasto-plastic finite element method is adopted to simulate draw-bead formation and draw-in process through the draw-bead. The finite element method code has to deal with a proper contact algorithm and a stress evaluation algorithm, since the sheet metal undergoes large deformation and rotation with severe geometric changes. The simulation of draw-bead formation produces the distribution of stress and strain in deformed sheet metal along the bead as well as the punch force of a draw-bead. It also provides the resultant elongation of the sheet in the cavity region, which is the fundamental information as a boundary condition to analyze the complicated binder-wrap phenomena.
ISSN:0924-0136
DOI:10.1016/S0924-0136(96)02704-5