Assessment of Tendon Prestressing after Long-Term Service via the Barkhausen Noise Technique

This paper deals with the assessment of a real prestressed tendon by the use of Barkhausen noise emission. The tendon was obtained from a real highway bridge after 33 years in service. Barkhausen noise is studied as a function of the stress state, and the Barkhausen noise signals received directly f...

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Bibliographic Details
Published in:Materials 2019-10, Vol.12 (20), p.3450
Main Authors: Neslušan, Miroslav, Bahleda, František, Moravčík, Martin, Zgútová, Katarína, Pastorek, Filip
Format: Article
Language:English
Subjects:
Barkhausen effect
Concrete
Corrosion
Corrosive wear
Ferromagnetism
Gamma rays
Investigations
Magnetic fields
Microscopy
Pitting (corrosion)
Prestressed concrete
Prestressing
Stress state
Tendons
Wire
Yield stress
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Summary:This paper deals with the assessment of a real prestressed tendon by the use of Barkhausen noise emission. The tendon was obtained from a real highway bridge after 33 years in service. Barkhausen noise is studied as a function of the stress state, and the Barkhausen noise signals received directly from the tendon on the real bridge are compared with the Barkhausen noise signals received from the tendon during loading in the laboratory. Assessment of the prestressing is based on the analysis of the effective value of the Barkhausen noise signal as well as the position in which the Barkhausen noise envelopes attain a maximum.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma12203450