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Surface Crack Detection in Prestressed Concrete Cylinder Pipes Using BOTDA Strain Sensors
Joint Authors
Feng, Xin
Xu, Zhigang
Zhong, Sheng
Wu, Wenjing
Source
Mathematical Problems in Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-08-21
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Structural deterioration after a period of service can induce the failure of prestressed concrete cylinder pipes (PCCPs), with microcracks in the coating leading to the corrosion of the prestressed wires.
In this paper, we propose the use of Brillouin optical time-domain analysis (BOTDA) strain sensors for detecting the onset of microcracking in PCCP coating: the BOTDA strain sensors are mounted on the surface of the PCCP, and distributed strain measurements are employed to assess the cracks in the mortar coating and the structural state of the pipe.
To validate the feasibility of the proposed approach, experimental investigations were conducted on a prototype PCCP segment, wherein the inner pressure was gradually increased to 1.6 MPa.
Two types of BOTDA strain sensors—the steel wire packaged fiber optic sensor and the polyelastic packaged fiber optic sensor—were employed in the experiments.
The experimental distributed measurements agreed well with the finite element computations, evidencing that the investigated strain sensors are sensitive to localized deterioration behaviors such as PCCP microcracking.
American Psychological Association (APA)
Xu, Zhigang& Feng, Xin& Zhong, Sheng& Wu, Wenjing. 2017. Surface Crack Detection in Prestressed Concrete Cylinder Pipes Using BOTDA Strain Sensors. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1192649
Modern Language Association (MLA)
Xu, Zhigang…[et al.]. Surface Crack Detection in Prestressed Concrete Cylinder Pipes Using BOTDA Strain Sensors. Mathematical Problems in Engineering No. 2017 (2017), pp.1-12.
https://search.emarefa.net/detail/BIM-1192649
American Medical Association (AMA)
Xu, Zhigang& Feng, Xin& Zhong, Sheng& Wu, Wenjing. Surface Crack Detection in Prestressed Concrete Cylinder Pipes Using BOTDA Strain Sensors. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-12.
https://search.emarefa.net/detail/BIM-1192649
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1192649