Flow visualisation of a cavitating hydrofoil as part of a preliminary test validation study for a large numerical and physical research project.

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Springback of High Strength Steel with PAM-STAMP

Modern requirements in automotive and aerospace industries mean higher strength with reduced weight. This means increased use of high strength steel and aluminium parts in modern vehicle structures. The problem of springback has come to the forefront of the die engineering process. The degree of springback experienced with the latest generation materials is so high, and the materials so strong, that it is not possible to ‘correct’ the springback in the prototyping, it becomes mandatory to compensate for springback as part of the draw die design.

Characteristic of Ultra High Strength Steel

High Yield Stress

Bad Formability

Large Springback

PAM-STAMP 2G has, in recent years, seen several improvements to help the engineer master the springback:

  • Automatic die compensation module
  • Yoshida-Uemori material model well suited for simulation of springback in HSS
  • Accurate contact formulations
  • Buckling detection
  • Bottoming detection
  • Through thickness stress element for simulation of bottoming and ironing effects

PAM-STAMP Features