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Proceedings Paper

LWIR and MWIR thermography tools for composites assessment
Author(s): Nicolas P. Avdelidis; Eetta Saarimäki; Timo Kauppinen; Panagiotis Theodorakeas; Angelo Tati; Eleni Cheilakou; Stella Fanou; Maria Koui; Chiraz Ennaceur
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Paper Abstract

Smart methods for assessing the integrity of a composite structure are essential to both reduce manufacturing costs and out of service time of the structure due to maintenance. Nowadays, thermal non-destructive testing (NDT) is commonly used for assessing composites. This research work evaluates the potential of various infrared thermography (IRT) approaches for assessing different types of fabricated defects (i.e. impact damage, inclusions for delaminations, etc) on Glass Fibre Reinforced Polymer (GFRP) and Carbon Fibre Reinforced Polymer (CFRP) plates. Measurements were performed using LWIR and three active approaches: a) pulsed thermography using the flash method (xenon flash lamps), b) transient themography using IR-heating pulse, and c) thermographic inspection for cooled sample by freezing in -20 °C and then use monitoring. Furthermore, integrated flash thermography by employing a MWIR system was also used.

Paper Details

Date Published: 3 May 2010
PDF: 11 pages
Proc. SPIE 7661, Thermosense XXXII, 76610P (3 May 2010); doi: 10.1117/12.850863
Show Author Affiliations
Nicolas P. Avdelidis, National Technical Univ. of Athens (Greece)
Eetta Saarimäki, VTT Technical Research Ctr. of Finland (Finland)
Timo Kauppinen, VTT Technical Research Ctr. of Finland (Finland)
Panagiotis Theodorakeas, National Technical Univ. of Athens (Greece)
Angelo Tati, ENEA (Italy)
Eleni Cheilakou, National Technical Univ. of Athens (Greece)
Stella Fanou, ENEA (Italy)
Maria Koui, National Technical Univ. of Athens (Greece)
Chiraz Ennaceur, TWI Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 7661:
Thermosense XXXII
Ralph B. Dinwiddie; Morteza Safai, Editor(s)

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