G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 21/63 (2006.01) C09D 5/22 (2006.01) G01B 11/16 (2006.01) G01L 1/24 (2006.01) G01N 21/88 (2006.01)
Patent
CA 2321841
The subject invention relates to a strain-sensitive coating, a strain measurement system, and a method to determine strains on substrate materials. In a preferred embodiment of the subject invention, the system includes a luminescent strain-sensitive coating and a strain field mapping system which can be used to create a strain map of the mechanical strain on a substrate material. The luminescent strain-sensitive coating of the subject invention is preferably a polymer-based coating, and can incorporate one or more luminescent compounds. The subject coating can be applied to produce a thin film on a substrate material, such as aluminum, steel, polymer, or composite. One or more characteristics of the luminescence emanating from the coating can then vary in relation to the strain on the substrate material. In a preferred embodiment, the change in the morphology of cracks in the coating can vary one or more characteristics of the luminescence emanating from the coating such that the strain on the substrate material can be determined by measuring the luminescence emanating from the coating.
Le changement de la morphologie de craquelures d'un revêtement modifie une ou plusieurs caractéristiques de la luminescence émanant de ce revêtement, ce qui permet de déterminer la contrainte exercée sur le matériau d'un substrat au moyen de la mesure de cette luminescence. Ce revêtement luminescent sensible aux contraintes consiste, de préférence, en un revêtement à base de polymère et peut incorporer un ou plusieurs composés luminescents. On peut appliquer ce revêtement afin de créer une couche mince sur le matériau d'un substrat, tel qu'aluminium, acier, polymère ou un matériau composite. Une ou plusieurs caractéristiques de la luminescence émanant du revêtement peuvent alors varier en fonction de la contrainte exercée sur le substrat.
Brennan Anthony B.
Carroll Bruce
El-Ratal Wissam
He Liu
Hubner James
Macrae & Co.
University Of Florida
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