The CRC/Transregio 188 Damage Controlled Forming Processes is a joint long-term research project with participation of RWTH Aachen, BTU Cottbus-Senftenberg, TU Dortmund University and the Max-Planck-Institut für Eisenforschung. The overall objective is to investigate damage nucleation and evolution in hot and cold forming on multi-process and multi-scale level by merging of competences in the areas of forming technology (A-projects), materials science (B-projects) and mechanical material modeling (C-projects). Strategies are developed to permanently improve the performance of components produced by shaping technology by adjustment of damage profiles through optimization of load paths.

Duration: 2017 until 2024

Consortium: 3 universities, 1 research institute

This project aims to predict the behavior of components made of 16MnCrS5 under operational loading conditions. Particularly, the influence of ductile initial damage caused by a previous forming process is analyzed. For that purpose, a novel characterization of microstructural defects is elaborated and combined with a novel thermo-mechanical coupled macroscopic constitutive. By doing so, even complex loading paths – including those characterized by axial-torsional loading – can be investigated in a first step. Subsequently, improved loading paths can be virtually designed