Thermo-mechanical coupled damage model for operational loading conditions – predicting the operating time of formed components (Project C01)

• Subject Area: Mechanics ; Mechanical Properties of Metallic Materials and their Microstructural Origins
• Term: since 2025
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 278868966

The goal of this project is the prediction and evaluation of the cyclic performance of components that suffer from forming-induced damage. The previously established, gradient-enhanced framework is extended for this purpose by quasi-brittle behavior at higher numbers of cycles and low temperatures. The close collaboration of axial-torsional experiments and numerical predictions of complex geometries allow to derive key influencing factors for anisotropic damage evolution. Guidelines for damage-mitigating operation will complete the damage assessment of the process chain for case hardening steel and aluminum alloys under mixed and even uncertain load conditions.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 188: Damage Controlled Forming Processes
• Applicant Institution: Technische Universität Dortmund, since 1/2025
• Project Heads: Dr.-Ing. Patrick Kurzeja, since 1/2025; Professor Dr.-Ing. Jörn Mosler, since 1/2025; Professor Dr.-Ing. Frank Walther, since 1/2025