Feasibility Study of Stress Measurement in Prestressing Tendons Using Villari Effect and Induced Magnetic Field
Joint Authors
Joh, Changbin
Lee, Jung Woo
Kwahk, Imjong
Source
International Journal of Distributed Sensor Networks
Issue
Vol. 2013, Issue - (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-11-14
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Telecommunications Engineering
Information Technology and Computer Science
Abstract EN
This paper investigates experimentally the feasibility of estimating the stress in the prestressing tendons of prestressed concrete bridges using the magnetic field induced by an electromagnet and the Villari effect in which the magnetic susceptibility or permeability of a ferromagnetic material changes when subjected to a mechanical stress.
The test results show the good linearity between the stress in the prestressing tendon and the induced magnetic flux density within the practical stress range of the tendons.
In addition, the induced magnetic flux density in the tendon appears to depend on the intensity of the electromagnet and the distance between the electromagnet and the tendon regardless of the concrete cover.
Accordingly, although further studies are needed for practical applications, the stress in the prestressing tendon of a prestressed concrete bridge can be estimated by measuring the induced magnetic flux density generated in the tendon and by using the linear relationship between this induced magnetic flux density and the stress in the prestressing tendon.
American Psychological Association (APA)
Joh, Changbin& Lee, Jung Woo& Kwahk, Imjong. 2013. Feasibility Study of Stress Measurement in Prestressing Tendons Using Villari Effect and Induced Magnetic Field. International Journal of Distributed Sensor Networks،Vol. 2013, no. -, pp.1-8.
https://search.emarefa.net/detail/BIM-457342
Modern Language Association (MLA)
Joh, Changbin…[et al.]. Feasibility Study of Stress Measurement in Prestressing Tendons Using Villari Effect and Induced Magnetic Field. International Journal of Distributed Sensor Networks Vol. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-457342
American Medical Association (AMA)
Joh, Changbin& Lee, Jung Woo& Kwahk, Imjong. Feasibility Study of Stress Measurement in Prestressing Tendons Using Villari Effect and Induced Magnetic Field. International Journal of Distributed Sensor Networks. 2013. Vol. 2013, no. -, pp.1-8.
https://search.emarefa.net/detail/BIM-457342
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-457342