Journal ArticleDOI
Performance of embedded short-gage-length optical fiber sensors in a fatigue-loaded reinforced concrete specimen
M de Vries,Manish H. Nasta,Vikram Bhatia,Tuan A. Tran,Jonathan A. Greene,Richard O. Claus,Sami F. Masri +6 more
TLDR
In this paper, the performance of short-gage-length optical fiber sensors embedded in a reinforced concrete specimen was evaluated using a steel-reinforced concrete cross-beam specimen.Abstract:
This paper reports the performance of short-gage-length optical fiber sensors embedded in a reinforced concrete specimen. Embedded extrinsic Fabry-Perot optical fiber sensors, attached to steel reinforcement rods, were used to monitor local displacements and strain in a concrete cross-beam specimen. The strain data obtained from the fiber sensors were compared with data obtained from collocated foil strain gages. Absolute extrinsic Fabry-Perot interferometric sensors, capable of measuring absolute displacement and strain, were embedded in a steel-reinforced concrete specimen. Loading experiments performed on this specimen also yielded absolute strain information. The specimen was cyclically loaded for more than 100000 cycles in this geometry and the sensors still provided quantitative strain information regarding this specimen.read more
Citations
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Journal ArticleDOI
Structural control: past, present, and future
George W. Housner,Lawrence A. Bergman,Thomas K. Caughey,Anastasios Chassiakos,R. O. Claus,Sami F. Masri,Robert E. Skelton,T. T. Soong,Billie F. Spencer,J. T. P. Yao +9 more
TL;DR: In this paper, the authors provide a concise point of departure for researchers and practitioners alike wishing to assess the current state of the art in the control and monitoring of civil engineering structures, and provide a link between structural control and other fields of control theory.
Journal ArticleDOI
Fiber optic sensors in concrete structures: a review
TL;DR: In this paper, the authors proposed a non-destructive evaluation of the structural health of reinforced concrete constructions using fiber optic sensors (FOS) to detect a decrease in performance or imminent failure.
Journal ArticleDOI
Smart Sensing Technologies for Structural Health Monitoring of Civil Engineering Structures
TL;DR: In this article, the application of smart materials/sensors for the structural health monitoring (SHM) of civil engineering structures is critically reviewed, where the major focus is on the evaluations of laboratory and field studies.
Journal ArticleDOI
Sensor technology innovation for the advancement ofstructural health monitoring: a strategic programof US-China research for the next decade
Book
Smart Structures Theory
Inderjit Chopra,Jayant Sirohi +1 more
TL;DR: In this article, the authors focus on smart materials, structures and systems, which are also referred to as intelligent, adaptive, active, sensory and metamorphic, and the purpose of these materials from the perspective of smart systems is their ability to minimize life-cycle cost and/or expand the performance envelope.
References
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Journal ArticleDOI
Interferometric optical fibre sensors using internal mirrors
C.E. Lee,Henry F. Taylor +1 more
TL;DR: RefReflectively monitored Fabry-Perot interferometers which make use of dielectric mirrors in continuous lengths of single mode fiber are characterised for use as temperature and wavelength sensors as discussed by the authors.
Journal ArticleDOI
Fiber-optic Fabry-Perot interferometer and its sensor applications
TL;DR: Fiber-optic Fabry-Perot interferometers using monomode fibers are fabricated and their basic properties of finesse, polarization, and thermal response are studied.
Journal ArticleDOI
Elliptical-core two mode optical-fiber sensor implementation methods
TL;DR: In this article, a few-mode elliptical-core sensor was used to detect the amplitude and direction of dynamic strain in a graphite-epoxy composite. Butler et al. used a single-mode ECC fiber as the lead-in fiber and an offset circular-core singlemode fiber as lead-out fiber.
Journal ArticleDOI
A simple fibre Fabry-Perot sensor
TL;DR: In this article, a simple fibry Fabry-Perot sensor is described in which the uncoated cleaved ends of a length of single mode fibre are employed as the mirror surfaces to produce high visibility cosine squared fringes in the back reflected light.
Journal ArticleDOI
Experimental Study of Embedded Fiber‐Optic Strain Gauges in Concrete Structures
TL;DR: In this paper, the use of embedded short-gauge-length optical fiber sensors for the quantitative measurement of strain in reinforced concrete structures was evaluated through direct comparison between the performance of these sensors and collocated foil strain gauges.