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

  • Type:

    Article

  • Date:

    22 September 2009

  • Publication Status:

    Published

  • Publisher

    Institute of Electrical and Electronics Engineers (IEEE)

  • DOI:

    10.1109/jsen.2009.2018355

  • ISSN:

    1530-437X

  • Library of Congress:

    TA Engineering (General). Civil engineering (General)

  • Dewey Decimal Classification:

    681 Precision instruments & other devices

  • Funders:

    City, University of London

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

Authors

Keywords

Strain measurement, Optical fiber sensors, Polymers, Monitoring, Capacitive sensors, Testing, Optical fiber networks, Structural rods, Stress, Fiber gratings

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