Microstructure-based Description of the Formation of Cracks in Welded Joints

© Fraunhofer IWM

As part of the DFG-AiF cluster project IBESS »Integral fracture mechanics determination of the fatigue strength of welded joints« Fraunhofer IWM has developed a fracture mechanics substitute model for the formation of cracks on the basis of real micromechanical structures, to determine initial crack sizes for macroscopic fracture mechanics lifetime predictions.