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https://hdl.handle.net/20.500.14279/1372
Τίτλος: | 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 | Συγγραφείς: | Zeng, Xiaodong Bao, Xiaoyi Georgiades, Tasos |
Major Field of Science: | Engineering and Technology | Field Category: | Mechanical Engineering | Λέξεις-κλειδιά: | Concrete beams;Optical fiber detectors;Glass fibers;Brillouin scattering | Ημερομηνία Έκδοσης: | 2002 | Πηγή: | Applied Optics, 2002, vol. 41, no. 24, pp. 5105-5114 | Volume: | 41 | Issue: | 24 | Start page: | 5105 | End page: | 5114 | Περιοδικό: | Applied Optics | Περίληψη: | 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 |
Εμφανίζεται στις συλλογές: | Άρθρα/Articles |
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