Strain Measurement Using Embedded Fiber Bragg Grating Sensors Inside an Anchored Carbon Fiber Polymer Reinforcement Prestressing Rod for Structural Monitoring

Kerrouche, A.; Boyle, W.J.O.; Sun, Tong; Grattan, K.T.V.; Schmidt, J.W.; Taljsten, B.

doi:10.1109/jsen.2009.2018355

Strain Measurement Using Embedded Fiber Bragg Grating Sensors Inside an Anchored Carbon Fiber Polymer Reinforcement Prestressing Rod for Structural Monitoring

Kerrouche, A.; Boyle, W.J.O.; Sun, Tong; Grattan, K.T.V.; Schmidt, J.W.; Taljsten, B.

Authors

Dr Abdelfateh Kerrouche A.Kerrouche@napier.ac.uk
Associate Professor

W.J.O. Boyle

Tong Sun

K.T.V. Grattan

J.W. Schmidt

B. Taljsten

Abstract

Results are reported from a study carried out using a series of Bragg grating-based optical fiber sensors written into a very short length (60 mm) optical fiber network and integrated into carbon fiber polymer reinforcement (CFPR) rod. Such rods are used as reinforcements in concrete structures and in tests were subjected to strain through a series of cycles of pulling tests, with applied forces of up to 30 kN. The results show that effective strain measurements can be obtained from the different sensors mounted along the rod. Additionally, the tests show that close agreement with the results obtained from the calibrated force applied by the pulling machine and from a conventional resistive strain gauge mounted on the rod itself is obtained. Calculations from strain to shear stress show a relatively uniform stress distribution along the bar anchor used. The results give confidence to results from various methods of in situ monitoring of strains on such CFRP rods when used in different engineering structures.

Citation

Kerrouche, A., Boyle, W., Sun, T., Grattan, K., Schmidt, J., & Taljsten, B. (2009). Strain Measurement Using Embedded Fiber Bragg Grating Sensors Inside an Anchored Carbon Fiber Polymer Reinforcement Prestressing Rod for Structural Monitoring. IEEE Sensors Journal, 9(11), 1456-1461. https://doi.org/10.1109/jsen.2009.2018355

Journal Article Type	Article
Acceptance Date	Sep 22, 2009
Online Publication Date	Sep 22, 2009
Publication Date	2009-11
Deposit Date	Oct 18, 2018
Journal	IEEE Sensors Journal
Print ISSN	1530-437X
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Peer Reviewed	Peer Reviewed
Volume	9
Issue	11
Pages	1456-1461
DOI	https://doi.org/10.1109/jsen.2009.2018355
Keywords	Strain measurement, Optical fiber sensors, Polymers, Monitoring, Capacitive sensors, Testing, Optical fiber networks, Structural rods, Stress, Fiber gratings
Public URL	http://researchrepository.napier.ac.uk/Output/1318961