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Novel infrared thermography approach for rapid assessment of damage in aerospace structures
Author(s): D. A. Exarchos; K. Dassios; T. E. Matikas
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Paper Abstract

This work deals with the development of a prototype infrared sensor and infrared thermography (IRT) approach for nondestructive testing of aerospace materials and components. Thermography offers noncontact, wide area detection of subsurface defects, and can be used as an alternative or complement to conventional inspection technologies. The novel approach is based on the combination of Pulsed Phase Thermography (PPT) and Lock-in Thermography (LT). The technique provides with initial fast qualitative information of defects by the PPT technique such as location, approximate dimensions and depth of the defect, as well as an indication of the frequency range over which the LT technique would subsequently be applied for obtaining accurate quantitative characterization of the damage. The new IR approach enables fast inspection as well as qualitative and quantitative results such as the size, type and depth of defects.

Paper Details

Date Published: 27 March 2018
PDF: 7 pages
Proc. SPIE 10601, Smart Materials and Nondestructive Evaluation for Energy Systems IV, 106010P (27 March 2018); doi: 10.1117/12.2300171
Show Author Affiliations
D. A. Exarchos, Univ. of Ioannina (Greece)
K. Dassios, Univ. of Ioannina (Greece)
T. E. Matikas, Univ. of Ioannina (Greece)

Published in SPIE Proceedings Vol. 10601:
Smart Materials and Nondestructive Evaluation for Energy Systems IV
Theodoros E. Matikas, Editor(s)

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