- Title
- Integrated FBG sensor responses and full field thermo-electric stress approach to monitor damage accumulation in glass fibre reinforced composite plate
- Creator
- Kakei, Ayad; Epaarachchi, Jayantha; Rajic, Nick; Leng, Jinsong; Islam, Mainal; Kahandawa, Gayan
- Date
- 2015
- Type
- Text; Conference proceedings
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/161643
- Identifier
- vital:12515
- Identifier
- ISBN:9781605951119
- Abstract
- Monitoring internal damage status of advanced composite components with distributed sensor network has shown significant success in recent research works. However, application of such a system in a full scale structure is a critically challenging task and maintaining such a system during life time operations is an extremely difficult. An additional non-contactable full field strain measurement system being used to measure outer surface strain field of a composite sample while an embedded FBG sensor closer to an internal void being used to monitor localized strain variation. Recent developments in miniature low-cost microbolometer technology have paved the way to use full field thermo-elastic stress mapping using relatively inexpensive Infra-Red cameras. This paper details a comparison of strain measurements observed from FBG sensors embedded in a composite plate sample at a closer location to a void and full field thermo-elastic stress map. The test coupons were fabricated with a purposely created delamination and sample was loaded by quasi-static and low cycle fatigue uni-axial loads. The FBG responses and IR images were recorded in frequent intervals in order to track the delamination growth. Further the strain variations were studied using a detailed FEA and compared with experimental strain and full field Thermo-elastic stress map. Copyright © 2015 by DEStech Publica tions, Inc.
- Publisher
- DEStech Publications
- Relation
- 10th International Workshop on Structural Health Monitoring 2015: System Reliability for Verification and Implementation, Standford, United States, 1-15th September, published in Proceedings of the 10th International Workshop on Structural Health Monitoring, IWSHM 2015 p. 641-648
- Rights
- Copyright DEStech Publications
- Rights
- This metadata is freely available under a CCO license
- Subject
- Delamination; Electric sensing devices; Fatigue of materials; Fiber Bragg grating; sFiber reinforced plastics; Infrared imaging; MonitoringPlates (structural components); Sensor networks; Strain measurement; Thermoelasticity
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