Damage detection in vibrating composite panels using embedded fibre optic sensors and pulsed-DSPI
The investigation concerns the application of optical fibre strain sensors and pulsed digital speckle pattern interferometry (DSPI) to the analysis of a vibrating composite panel. A prototype system for condition, monitoring of composite structures is being developed which relies on the on-line measurement of vibration frequencies and modal shapes in order to detect any deterioration in performance. A range of carbon-fibre reinforced composite panels have been produced which incorporate an embedded network of long-gauge-length interferometric strain sensors. Attention is being given to the possibility of employing finite element modeling update, using the data derived from the embedded fibre sensor network, as the basis for the overall health monitoring system.
Bibliographic Reference: Paper presented: DAMAGE Assessment of Structures, Dublin (IE), 28-30th June 1999
Availability: Available from Public Relations and Publications Unit, Ispra (IT)
Record Number: 199911186 / Last updated on: 1999-08-19
Original language: en
Available languages: en