DETECT-Defect dEtection and impact on faTigue behavior for mEtal AM parts with Complex geomeTries

Purpose and goal:

To apply additive manufacturing (AM) for critical parts in aerospace systems, a deeper understanding of detectability and impact of process induced defects is essential. The aim of this project is to generate fundamental understanding on the detectability of defects using non-destructive testing, and the impact of various defect conditions on the fatigue performance of additively manufactured parts.

Expected results and effects:

The project will generate fundamental understanding on the detectability of defects and the impact of various defect conditions on the fatigue performance of AM parts. This is important for a wider implementation of AM which in turn could reduce weight of aerospace system and improve performance of aerospace systems contributing to a more sustainable aviation by reducing emissions.

AM parts can also give shorter lead times of spare parts in which even conventional manufactured parts could be replaced by rapidly manufactured AM spare parts if adequate quality control is available. Approach and implementation:

The project will be carried out as a PhD-student project. The PhD-student will be supported by supervisors from Linköping University (LiU), University West (HV) and Saab. Mechanical testing and metallographic investigations will be carried out at LiU.

X-ray imaging (2D and 3D CT) experiments will be carried out mainly at HV but also complemented with experiments at Excillum. Specimen manufacturing will be done by Amexci. Saab will support with additional NDT techniques, project management and supervision of the PhD student.