Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

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

Not Accessible

Your library or personal account may give you access

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.

© 2002 Optical Society of America

Full Article  |  PDF Article
More Like This
Structural monitoring by use of a Brillouin distributed sensor

Michael DeMerchant, Anthony Brown, Xiaoyi Bao, and Theodore Bremner
Appl. Opt. 38(13) 2755-2759 (1999)

Distributed Brillouin fiber sensor for detecting pipeline buckling in an energy pipe under internal pressure

Lufan Zou, Xiaoyi Bao, Fabien Ravet, and Liang Chen
Appl. Opt. 45(14) 3372-3377 (2006)

Distributed Brillouin scattering sensor for discrimination of wall-thinning defects in steel pipe under internal pressure

Lufan Zou, Graham A. Ferrier, Shahraam Afshar V., Qinrong Yu, Liang Chen, and Xiaoyi Bao
Appl. Opt. 43(7) 1583-1588 (2004)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (13)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved