- Title
- Distortion index for assessment of damage growth in a composite structures using spectral distortion of embedded FBG sensors
- Creator
- Kahandawa, Gayan; Epaarachchi, Jayantha; Canning, John; Lau, Alan
- Date
- 2013
- Type
- Text; Conference paper
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/161218
- Identifier
- vital:12328
- Abstract
- Structural Health Monitoring Systems based on embedded FBG sensors, to identify damage conditions, are largely dependent on the spectral distortion of the sensors. The uneven stress gradient occurring along the grating of FBG sensors, due to damage inside composite structures can be estimated by analyzing significant changes that appear in the FBG response spectra. However, the stochastic nature of the distorted shape of the FBG spectra makes it difficult to interpret and quantify the existing damage at the location of the FBG sensors. This research works on a novel concept of the "Distortion I ndex (DI)" which is defined using distorted spectra of FBG sensors. I t was observed that the DI increases with t he i ncrease in damage size.
- Publisher
- Destech Publications
- Relation
- 9th International Workshop on Structural Health Monitoring: A Roadmap to Intelligent Structures, IWSHM 2013 p. 175-181
- Rights
- Copyright © 2013
- Rights
- This metadata is freely available under a CCO license
- Subject
- 0905 Civil Engineering
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