Corrosion detection in steel bar: A time-frequency approach

Show simple item record Majhi, Subhra Mukherjee, Abhijit George, Nithin V. Uy, Brian 2019-08-14T12:22:36Z 2019-08-14T12:22:36Z 2019-10
dc.identifier.citation Majhi, Subhra; Mukherjee, Abhijit; George, Nithin V. and Uy, Brian, "Corrosion detection in steel bar: A time-frequency approach", NDT & E International, DOI: 10.1016/j.ndteint.2019.102150, vol. 107, Oct. 2019. en_US
dc.identifier.issn 0963-8695
dc.identifier.issn 1879-1174
dc.description.abstract This paper presents a new technique for discerning corrosion in steel bars using guided ultrasonic waves with an improved signal processing technique. A mild steel bar has been subjected to accelerated corrosion. Information concerning variation in spectral traits associated with the spread of corrosion has been discerned. Dispersion curves for the steel bar have been deduced to understand and correlate the observed change in time-frequency spectra with shift in predominant modes with spread of corrosion. Theoretical and measured mass loss in the steel rebar is used as physical parameters to evaluate corrosion. Tensile tests of corroded specimen have also been undertaken to measure the residual strength of the corroded bars. The superiority of the proposed signal processing technique in clearly discerning the state of corrosion has been demonstrated.
dc.description.statementofresponsibility by Subhra Majhi, Abhijit Mukherjee, Nithin V. George and Brian Uy
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject Reinforcement bars en_US
dc.subject Guided wave ultrasonics en_US
dc.subject Corrosion monitoring en_US
dc.subject Longitudinal waves en_US
dc.subject Time-Frequency analysis en_US
dc.subject S-Transforms en_US
dc.title Corrosion detection in steel bar: A time-frequency approach en_US
dc.type Article en_US
dc.relation.journal NDT & E International

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