Improvement of the mapping accuracy in the material modeling by considering the yield locus under plane strain

Third party funded individual grant

Project Details

Project leader:
Prof. Dr.-Ing. Marion Merklein

Project members:
Matthias Lenzen

Contributing FAU Organisations:
Institute of Manufacturing Technology

Funding source: DFG-Einzelförderung / Sachbeihilfe (EIN-SBH)
Start date: 01/01/2019
End date: 31/12/2020

Abstract (technical / expert description):

aim of the research project is the improvement of the mapping accuracy
in numerically simulated forming operations. This is achieved by
considering the material behavior under plane strain. As part of this
project, testing methods are initially developed to determine the
material behavior under plane strain from the onset of yielding up to
failure under this loading condition. That is only possible by using two
different experimental concepts to be able to partially quantify the
material behavior. On the basis of these material characteristics,
existing analytical models for the calculation of stress components at
plane strain are analyzed and evaluated based on their prediction
quality. Subsequently, an existing material model is modified so that
the experimentally determined material characteristics ​​can be taken
into account in the model. Finally, the developed material model shall
be validated by transfer to a demonstrator component in a hydroforming

Last updated on 2019-07-08 at 10:48