Improvement of the mapping accuracy in the material modeling by considering the yield locus under plane strain
Head
Researcher
Funding period:
Start: 1. April 2023
Ende: 31. March 2025
Abstract
The lack of consideration of plane strain in material modeling for the numerical design of sheet metal forming operations was identified as a weak point in imaging accuracy. The overarching objective of the research project is therefore to improve material modeling as an input variable for numerical simulation. While the integration of plane strain in the rolling direction and at low degrees of forming was the subject of research in project phase 1, the focus is now on analyzing the forecast quality when implementing additional parameters. By integrating the characteristic value for plane strain in the rolling direction, the roundness of the flow locus curve and thus also the predicted stress in plane strain change against the rolling direction and the shear stress. This influence on the numerical prediction quality in these indirectly influenced areas of the yield curve as well as the extension to higher degrees of deformation (0.4 for DC06, and 0.2 for DP600 and AA5182) will now be the subject of research.