Use of thermography and fiber optics microscopy for the evaluation of railway structures in the Athens Metro in Greece

Antonia Moropoulou; Nicolas P. Avdelidis; K. Labropoulos; P. Moundoulas; Dionyssia Polymenakou; Dionyssios Stavrakas; P. Terezakis

doi:10.1117/12.601085

28 March 2005 Use of thermography and fiber optics microscopy for the evaluation of railway structures in the Athens Metro in Greece

Antonia Moropoulou, Nicolas P. Avdelidis, K. Labropoulos, P. Moundoulas, Dionyssia Polymenakou, Dionyssios Stavrakas, P. Terezakis

Author Affiliations +

Proceedings Volume 5782, Thermosense XXVII; (2005) https://doi.org/10.1117/12.601085
Event: Defense and Security, 2005, Orlando, Florida, United States

Abstract

Rolling Contact Fatigue (RCF) is one of the main issues that concern, at least initially, the head of the railway; progressively they can be of very high importance as they can propagate inside the material with the risk of damaging the railway. In this work, two different non-destructive techniques, infrared thermography (IRT) and fibre optics microscopy (FOM), were used in the inspection of railways for the tracing of defects and deterioration signs. In the first instance, two different approaches (dynamic and pulsed thermography) were used, whilst in the case of FOM, microscopic characterisation of the railway heads and classification of the deterioration -- damage on the railways according to the UIC (International Union of Railways) code, took place. Results from both techniques are presented and discussed.

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Antonia Moropoulou, Nicolas P. Avdelidis, K. Labropoulos, P. Moundoulas, Dionyssia Polymenakou, Dionyssios Stavrakas, and P. Terezakis "Use of thermography and fiber optics microscopy for the evaluation of railway structures in the Athens Metro in Greece", Proc. SPIE 5782, Thermosense XXVII, (28 March 2005); https://doi.org/10.1117/12.601085

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