• English
  • Deutsch
  • Log In
    Password Login
    Research Outputs
    Fundings & Projects
    Researchers
    Institutes
    Statistics
Repository logo
Fraunhofer-Gesellschaft
  1. Home
  2. Fraunhofer-Gesellschaft
  3. Konferenzschrift
  4. Cross-sectional warping in sheet metal forming simulations
 
  • Details
  • Full
Options
2021
Conference Paper
Title

Cross-sectional warping in sheet metal forming simulations

Abstract
For most sheet metal forming simulations, shell elements that consider a reduced stress state, in particular, assuming a zero transverse normal stress 𝜎33 and neglecting the shear stress components 𝜎13 and 𝜎23 in the yield function, are used. Moreover, certain kinematic assumptions, like cross-sectional material fibers being assumed to remain straight during deformation, are typically applied. However, for some applications, like bending with small radii and thick sheets, this approach is not a workable solution to obtain accurate and reliable results, since the prerequisites that justify the aforementioned kinematic assumptions are not met anymore. In this contribution, a 3d-shell element is presented that allows for cross-sectional warping. For the evaluation, numerical results of a metal stripe drawn through a draw bead are compared against experimental data. The results demonstrate that the 3d-shell element is able to represent warping of cross-sectional material fibers during deformation. In addition, further numerical tests conducted with this element are shown.
Author(s)
Willmann, T.
Institute for Structural Mechanics, University of Stuttgart
Wessel, A.
Fraunhofer-Institut für Werkstoffmechanik IWM  
Beier, T.
thyssenkrupp Steel Europe AG
Butz, A.
Fraunhofer-Institut für Werkstoffmechanik IWM  
Bischoff, M.
Institute for Structural Mechanics, University of Stuttgart
Mainwork
13th LS-DYNA European Conference and User's Meeting - Online and on-site. Book of abstracts  
Funder
Bundesministerium fur Wirtschaft und Energie BMWi (Deutschland)  
Conference
European LS-DYNA Conference 2021  
Link
Link
Language
English
Fraunhofer-Institut für Werkstoffmechanik IWM  
Keyword(s)
  • sheet metal forming

  • simulations

  • 3d-shell

  • LS-Dyna

  • velocity

  • Cookie settings
  • Imprint
  • Privacy policy
  • Api
  • Contact
© 2024