Solid mechanics

Modeling of fracture in ultra-high strength steel based on microstructure.

The project's driving force comes from the automotive industry, where high-performance steel introduced widely in the next generation of body structures. New types of components will be tailored material properties in order to improve crash safety. In development of these components required new knowledge and new tools to predict crime in a crash situation.

The research studied localization and fracture processes in terms of various steel microstructure composition. Modeling and simulation are combined with experiments, where DSP measurement is observed at different length scales for a well-defined materialgrades. The goal is that by physically based models find a fracture criterion for steel with a mixture of different phases.

PhD student: Rickard Östlund
Supervisor: Mats Oldenburg