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Proceedings Paper

Quantitative thermal imaging analysis of aircraft materials: through skin sensing
Author(s): Nicolas P. Avdelidis; L. J. Nelson; D. P. Almond
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Paper Abstract

Thermal non-destructive testing (NDT) is commonly used for assessing aircraft structures. This research work evaluates the potential of pulsed -- transient thermography for locating fixtures beneath aircraft skins in order to facilitate accurate automated assembly operations. Representative aluminium and carbon fibre aircraft skin-fixture assemblies were modelled using thermal modelling software. The assemblies were also experimentally investigated with an integrated pulsed thermographic evaluation system, as well as using a custom built system incorporating a miniature un-cooled camera. Modelling showed that the presence of an air gap between skin and fixture significantly reduced the thermal contrast developed, especially in aluminium. Experimental results show that fixtures can be located to accuracies of 0.5 mm.

Paper Details

Date Published: 28 March 2005
PDF: 10 pages
Proc. SPIE 5782, Thermosense XXVII, (28 March 2005); doi: 10.1117/12.592437
Show Author Affiliations
Nicolas P. Avdelidis, Technical Chamber of Greece (Greece)
L. J. Nelson, Univ. of Bath (United Kingdom)
D. P. Almond, Univ. of Bath (United Kingdom)

Published in SPIE Proceedings Vol. 5782:
Thermosense XXVII
G. Raymond Peacock; Douglas D. Burleigh; Jonathan J. Miles, Editor(s)

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