WIT Press

Non-destructive Monitoring Of Composite Elements By Means Of Embedded Optical Fibre Bragg-sensors.

Price

Free (open access)

Paper DOI

10.2495/CP000211

Volume

28

Pages

10

Published

2000

Size

986 kb

Author(s)

W. De Waele, J. Degrieck, W. Moerman L. Taerwe, R. Baets

Abstract

This paper will report on the results of tests carried out to demonstrate the applicability of optical fibre sensors as a non-destructive evaluation technique. So-called Bragg-sensors, which serve as an internal strain gauge, have been succesfully embedded into composite specimens made of carbon fibre reinforced epoxy prepreg. It is shown that these sensors can be succesfully used for static and dynamic monitoring of the mechanical strain inside a composite laminate, and for the assessment of global damage of the specimen. Optical fibres with Bragg-sensor have also been embedded into filament wound pressure vessels made of

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