Method for assessing the damage to a paint-covered composite material, measuring two separate criteria on the spectrogram
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United States of America Patent
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Oct 24, 2017
Grant Date -
Aug 11, 2016
app pub date -
Apr 14, 2016
filing date -
Oct 17, 2013
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Abstract
A method for assessing damage to a composite material covered with a polyurethane-type paint is provided. Two separate criteria are measured on a spectrogram obtained by infrared spectrometry, thereby characterizing thermal ageing of the paint, each separate criteria being a measurement on a curve of a spectrum of the spectrogram of a height of a particular peak, thereby giving two independent assessments of the thermal ageing. Then, the two separate criteria are combined together in order to obtain a result of a level of the damage.
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