METHOD FOR ASSESSING THE DAMAGE TO A PAINT-COVERED COMPOSITE MATERIAL, MEASURING TWO SEPARATE CRITERIA ON THE SPECTROGRAM

METHOD FOR ASSESSING THE DAMAGE TO A PAINT-COVERED COMPOSITE MATERIAL, MEASURING TWO SEPARATE CRITERIA ON THE SPECTROGRAM

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 o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: LEFEU Odile, JOUBERT Frederic, EMMANUEL PIEL, BAILLARD Andre
Format: Patent
Sprache:eng
Schlagworte:
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Beschreibung
Zusammenfassung: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.