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Proceedings Paper

Regression analysis of non-contact acousto-thermal signature data
Author(s): Amanda Criner; Norman Schehl
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Paper Abstract

The non-contact acousto-thermal signature (NCATS) is a nondestructive evaluation technique with potential to detect fatigue in materials such as noisy titanium and polymer matrix composites. The underlying physical mechanisms and properties may be determined by parameter estimation via nonlinear regression. The nonlinear regression analysis formulation, including the underlying models, is discussed. Several models and associated data analyses are given along with the assumptions implicit in the underlying model. The results are anomalous. These anomalous results are evaluated with respect to the accuracy of the implicit assumptions.

Paper Details

Date Published: 11 May 2016
PDF: 11 pages
Proc. SPIE 9861, Thermosense: Thermal Infrared Applications XXXVIII, 98610O (11 May 2016); doi: 10.1117/12.2224169
Show Author Affiliations
Amanda Criner, Air Force Research Lab. (United States)
Norman Schehl, Univ. of Dayton Research Institute (United States)

Published in SPIE Proceedings Vol. 9861:
Thermosense: Thermal Infrared Applications XXXVIII
Joseph N. Zalameda; Paolo Bison, Editor(s)

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