Dokument-ID Dokumenttyp Autoren/innen Persönliche Herausgeber/innen Haupttitel Abstract Auflage Verlagsort Verlag Herausgeber (Institution) Erscheinungsjahr Titel des übergeordneten Werkes Jahrgang/Band ISBN Veranstaltung Veranstaltungsort Beginndatum der Veranstaltung Enddatum der Veranstaltung Ausgabe/Heft Erste Seite Letzte Seite URN DOI Lizenz Datum der Freischaltung OPUS4-44669 Zeitschriftenartikel Makris, Ruben; Hille, Falk; Thiele, Marc; Kirschberger, D.; Sowietzki, D. Crack luminescence as an innovative method for detection of fatigue damage In structural parts under vibrational loading fatigue cracks can initiate and grow, which can lead to structural failure. Conventional non-destructive testing methods for crack detection provide just a snapshot of fatigue crack evolution, whereas crack luminescence coating realizes clear visibility of the entire crack formation. Fatigue causing cyclic tensile tests and examinations on special test bodies allowing control of the crack opening width demonstrate a high sensitivity of the coating. Göttingen, Germany Copernicus Publications 2018 Journal of Sensors and Sensor Systems 7 259 266 urn:nbn:de:kobv:b43-446693 10.5194/jsss-7-259-2018 https://creativecommons.org/licenses/by/4.0/deed.de 2018-04-11 OPUS4-51051 Zeitschriftenartikel Hille, Falk; Sowietzki, D.; Makris, R. Luminescence-based early detection of fatigue cracks Classic non-destructive fatigue crack detection methods reveal the state of the fatigue damage evolution at the moment of application, generally not under operational conditions. The here introduced crack luminescence method realizes a clear visibility of the occurred and growing crack in loaded components during operation. Different established experiments show that due to the sensitive coating a crack Formation can be detected even in early stage under the premise the crack reached the surface. The coating consists of two layers with different properties and functions. The bottom layer emits light as fluorescence under UV radiation. The top layer covers the fluorescing one and prevents the emitting of light in case of no damage at the surface. In case of surface crack occurrence, the luminescent light is clearly noticeable by visual observations and also by standard camera equipment which makes automated crack detection possible as well. It is expected that crack luminescence can increase structural safety as well as reduce costs and time for inspections and preventive maintenance. Amsterdam Elsevier 2020 Materials Today: Proceedings 1 5 urn:nbn:de:kobv:b43-510517 10.1016/j.matpr.2020.02.338 https://creativecommons.org/licenses/by-nc-nd/4.0/deed.de 2020-07-27