In his thesis, Mathias Lorenz investigated the use of acoustic emission technology to detect and analyse cracks during the industrial series production of helical compression springs made of ultra-high-strength steels. Laboratory tests with selected (safety-relevant) springs made it possible to identify relevant influencing factors on the acoustic signal and enable automated in-situ crack detection. The acoustic signals were clearly assigned to different damage mechanisms and suitable analysis chains were developed in the software.
The defence took place in Rostock, where Mathias Lorenz was supervised by Prof. Dr.-Ing. Wilko Flügge as part of the cooperative doctoral procedure at the Chair of Production Engineering at the University of Rostock. At our university, Mathias Lorenz was supervised by Professor Dr Daniela Schwerdt at the Faculty of Engineering in the Department of Mechanical, Process and Environmental Engineering. From June 2023 to May 2024, the graduate of the Master's degree programme in Mechanical Engineering/Process and Energy Engineering was supported with a doctoral position at the Faculty of Engineering at our UAS. He also took part in special events organised by our UAS to promote young scientists.
Our heartfelt congratulations!