Theoretical prediction of failure in forming of friction stir welded blanks

  • A. A. ZadpoorEmail author
  • J. Sinke
  • R. Benedictus
Symposium MS04: Anisotropy and formability


In this paper, the Marciniak-Kuczynski method is used to predict the forming limits of friction stir welded tailor-made blanks. Three different FEM models, having three different levels of the welds details implemented, are built and the straining limits of a prototype friction stir welded blank during the Limiting Dome Height (LDH) test is predicted by using the models. The imperfection parameter is determined such that the predicted failure limits in a simulated tensile test match the experimentally obtained ones. It has been shown that the implementation of the weld details is necessary for accurate prediction of the failure limits.

Key words

Friction stir welded blanks Formability Marciniak-Kuczynski FEM 


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Copyright information

© Springer/ESAFORM 2008

Authors and Affiliations

  1. 1.Netherlands Institute for Metals Research – Mekelweg 2DelftThe Netherlands
  2. 2.Faculty of Aerospace EngineeringDelft University of Technology (TU Delft)- Kluyverweg 1DelftThe Netherlands

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