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Proceedings Paper

Application of the quadrupole method for simulation of passive thermography
Author(s): William P. Winfree; Joseph N. Zalameda; Elizabeth D. Gregory
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Paper Abstract

Passive thermography has been shown to be an effective method for in situ and real time nondestructive evaluation (NDE) to measure damage growth in a composite structure during cyclic loading. The heat generation by subsurface flaw results in a measurable thermal profile at the surface. This paper models the heat generation as a planar subsurface source and calculates the resultant temperature profile at the surface using a three dimensional quadrupole. The results of the model are compared to finite difference simulations of the same planar sources.

Paper Details

Date Published: 5 May 2017
PDF: 10 pages
Proc. SPIE 10214, Thermosense: Thermal Infrared Applications XXXIX, 102140Y (5 May 2017); doi: 10.1117/12.2264946
Show Author Affiliations
William P. Winfree, NASA Langley Research Ctr. (United States)
Joseph N. Zalameda, NASA Langley Research Ctr. (United States)
Elizabeth D. Gregory, NASA Langely Research Ctr. (United States)

Published in SPIE Proceedings Vol. 10214:
Thermosense: Thermal Infrared Applications XXXIX
Paolo Bison; Douglas Burleigh, Editor(s)

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