A thermodynamically consistent tensorial framework for strain induced damage and its application to the modeling of metal forming processes

• Applicant: Professor Dr. Wolfgang H. Müller
• Subject Area: Mechanics
• Term: from 2010 to 2014
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 183114468

The main objective of the project prolongation is the modeling of metal forming processes coupled with the prediction of strain-induced damage. The implementation of the project comprises the solution of the following research problems: experimental study and modeling of damage in multistage forming processes accompanied with intermittent healing operations via heat treatment; modeling of non-steady-state forming processes coupled with a prediction of strain-induced damage for variable values of stress triaxiality and Lode angle with the use of systematized experimental data both from own and external works. A thermodynamically consistent tensorial framework for strain-induced damage developed in frames of the project, the performed experiments and numerical modeling as well as the results recently published both by the applicant and by other authors will provide a sound scientific basis for achievement of the project objectives. A solution of the scheduled research problems will enhance the theoretical and methodological background of ductile damage mechanics and will extend its application-oriented possibilities to relevant engineering and processing issues in metal forming industry. The project results will be applied to the development of advanced forming processes.

• DFG Programme: Research Grants