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

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.

Publications

• Beckmann, C.; Kennerknecht, T.; Preußner, J.; Farajian, M.; Luke, M.; Hohe, J., Micromechanical investigation and numerical simulation of fatigue crack formation in welded joints, Engineering Fracture Mechanics 198 (2018) 142-157 Link