Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.14279/1372
Title: | Strain measurement in a concrete beam by use of the Brillouin-scattering-based distributed fiber sensor with single-mode fibers embedded in glass fiber reinforced polymer rods and bonded to steel reinforcing bars |
Authors: | Zeng, Xiaodong Bao, Xiaoyi Georgiades, Tasos |
Major Field of Science: | Engineering and Technology |
Field Category: | Mechanical Engineering |
Keywords: | Concrete beams;Optical fiber detectors;Glass fibers;Brillouin scattering |
Issue Date: | 2002 |
Source: | Applied Optics, 2002, vol. 41, no. 24, pp. 5105-5114 |
Volume: | 41 |
Issue: | 24 |
Start page: | 5105 |
End page: | 5114 |
Journal: | Applied Optics |
Abstract: | The strain measurement of a 1.65-m reinforced concrete beam by use of a distributed fiber strain sensor with a 50-cm spatial resolution and 5-cm readout resolution is reported. The strain-measurement accuracy is ± 15 με (μm/m) according to the system calibration in the laboratory environment with non-uniform-distributed strain and ± 5 με with uniform strain distribution. The strain distribution has been measured for one-point and two-point loading patterns for optical fibers embedded in pultruded glass fiber reinforced polymer (GFRP) rods and those bonded to steel reinforcing bars. In the one-point loading case, the strain deviations are ±7 and ±15 με for fibers embedded in the GFRP rods and fibers bonded to steel reinforcing bars, respectively, whereas the strain deviation is ±20 με for the two-point loading case. |
URI: | https://hdl.handle.net/20.500.14279/1372 |
ISSN: | 00036935 |
DOI: | 10.1364/AO.41.005105 |
Rights: | © Optical Society of America |
Type: | Article |
Affiliation: | University of Ottawa Canada |
Publication Type: | Peer Reviewed |
Appears in Collections: | Άρθρα/Articles |
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