Surface Compression

© Photo Fraunhofer IWM

Process simulation and behavior of porous materials

When powder technological processes are employed to manufacture porous materials such as sintered steel, characteristic properties are exhibited which to be described requires specialized material modeling. At the Fraunhofer IWM, corresponding models based on the Gurson model (Gologanu, Ponte-Castaneda) are implemented in the finite element (FE) program ABAQUS®. This allows the simulation of final processing steps, such as surface densification of gear wheels so as to improve product properties as well as the later in-service behavior with consideration of the locally varying lifetime conditions.

  • Yazici, B.A.; Kraft, T.; Riedel, H.; Finite Element Modelling of PM Surface Densification Process, Powder Metall. 51 (2008) 211-216 Link
  • Kraft, T.; Riedel, H.; Assessment of Fatigue Lifetime of PM-Parts, World Congress on Powder Metallurgy 2004, Vol. 3, EPMA, Shrewsbury, U.K. (2004) 111-116 Link