P4.7 - Crack luminescene as innovative method for detection of fatigue damage
- AMA Conferences 2017
2017-05-30 - 2017-06-01
- Proceedings Sensor 2017
- P4 - Optical Sensors
- R. Makris, J. Bronsert, F. Hille - Bundesanstalt für Materialforschung und -prüfung (BAM), Berlin (Germany), D. Kirschberger, D. Sowietzki - MR Chemie, Unna (Germany)
- 676 - 680
Conventional methods of crack detection only provide a snapshot of the fatigue evolution at a specific location. The crack luminescence method realizes a clear visibility of the occurring cracks in loaded components during ongoing operation. Several different experiments show that due to the sensitive coating even the early stage of the crack formation can be detected what makes the crack luminescence helpful to determine the incipient crack opening behavior depending on load alternation. The crack luminescence is a passive method and can be used in ongoing operation. There are no skilled professionals needed to detect a crack like in conventional methods. Due to the emitting of light under UV-radiation the crack gets clearly visible what also makes continuous monitoring possible. This can reduce costs and time needed for maintenance und inspection.