Novel infrared thermography approach for rapid assessment of damage in aerospace structures

D. A. Exarchos; K. Dassios; T. E. Matikas

doi:10.1117/12.2300171

27 March 2018 Novel infrared thermography approach for rapid assessment of damage in aerospace structures

D. A. Exarchos, K. Dassios, T. E. Matikas

Proceedings Volume 10601, Smart Materials and Nondestructive Evaluation for Energy Systems IV; 106010P (2018) https://doi.org/10.1117/12.2300171
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2018, Denver, Colorado, United States

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.

Citation Download Citation

D. A. Exarchos, K. Dassios, and T. E. Matikas "Novel infrared thermography approach for rapid assessment of damage in aerospace structures", Proc. SPIE 10601, Smart Materials and Nondestructive Evaluation for Energy Systems IV, 106010P (27 March 2018); https://doi.org/10.1117/12.2300171

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