&lt;title&gt;Effect of coating characteristics on strain transfer in embedded fiber optic sensors&lt;/title&gt;

Madsen, John S.; Jardine, A. P.; Meilunas, R.; Tobin, A.; Pak, Eugene

doi:10.1117/12.147979

Cited by 6 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many authors studied the stress concentration induced by the embedded fiber optic sensors [15][16][17][18][19][20] where the optimal parameters, such as the coating's modulus and thickness, were considered for the reduction of the concentration in the fiber cross section plane. Most of the questions on the measurement effectiveness remain unanswered.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness and optimization of fiber Bragg grating sensor as embedded strain sensor

Tang

Tao

Choy

1999

Smart Mater. Struct.

View full text Add to dashboard Cite

The strain field of a host with an embedded optic fiber is analyzed under a uniform three-principal strain load on the host in order to study the measurement effectiveness of fiber Bragg grating sensor (FBGS) as embedded strain sensor. Three indicators are defined to depict the strain measurement effectiveness of a fiber Bragg grating sensor embedded in a host. The numerical results represent the strain distributions in the host, coating and optic fiber as functions of the elastic modulus of coating and the geometrical parameters of the host. The effects of these parameters on the measurement effectiveness indicators are also studied and the optimal values of these parameters are suggested.

show abstract

Section: Introductionmentioning

confidence: 99%

Effectiveness and optimization of fiber Bragg grating sensor as embedded strain sensor

Tang

Tao

Choy

1999

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…For example, a perforated outer surface is aimed to improve bonding properties with the surrounding concrete. The original concept of layered design and its substantive justification was presented in patents [ 65 , 66 ] and further publications [ 67 , 68 ]. The presence of layers influences the strain transfer [ 69 , 70 ], reducing the high peaks and, thus, the risk of fibre breakage.…”

Section: Review Of Dfos-based Toolsmentioning

confidence: 99%

Crack Shape Coefficient: Comparison between Different DFOS Tools Embedded for Crack Monitoring in Concrete

Howiacki

Sieńko

Bednarski

et al. 2023

Sensors

View full text Add to dashboard Cite

The article presents research on the performance of different distributed fibre optic sensing (DFOS) tools, including both layered cables and monolithic composite sensors. The main need for the presented research was related to the growing applications of the DFOS techniques for the measurements of cracked concrete structures. There are no clear guidelines on the required parameters of the DFOS tools, which, despite their different designs, are offered for the same purpose (strain sensing). The state-of-the-art review and previous experiences show noticeable differences in the quality of the results depending on the applied DFOS tool. The technical construction of selected solutions was described with its theoretical consequences, and then laboratory tests on full-size reinforced concrete beams were discussed. Beams equipped with embedded tools were investigated in four-point bending tests, causing the formation of multiple cracks in the tension zone along the beams’ length. The results in the form of strain profiles registered by selected DFOS tools were analysed regarding the qualitative (crack detection) and quantitative (width estimation) crack assessment. The comparison between crack-induced strain profiles was based on a new parameter called crack shape coefficient CSC, which could be applied to assess the effectiveness of the particular DFOS tool in crack detection and analysis. It was one of the world’s first research allowing for such direct comparison between the layered and monolithic sensing tools. The summary indicates practical guidelines referring to the preferable design of the tools best suitable for crack measurements, as well as the field proofs based on data from two concrete bridges in Germany.

show abstract

Fiber‐Optic Sensors

Güemes¹,

Menéndez²

2006

Structural Health Monitoring

View full text Add to dashboard Cite

<title>Effect of coating characteristics on strain transfer in embedded fiber optic sensors</title>

Cited by 6 publications

References 0 publications

Effectiveness and optimization of fiber Bragg grating sensor as embedded strain sensor

Effectiveness and optimization of fiber Bragg grating sensor as embedded strain sensor

Crack Shape Coefficient: Comparison between Different DFOS Tools Embedded for Crack Monitoring in Concrete

Fiber‐Optic Sensors

Contact Info

Product

Resources

About