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MANYCHOVÁ, M., STRYK, J., FRÝBORT, A., KORENSKA, M., SVOBODA, V.
Originální název
Use of Non-destructive Techniques to Detect Damage Induced by Corrosion of Pre-stressing Steel Strands
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
The aim of this work is to provide confirmation of the possible use of two non-destructive techniques to detect damage of pre-stressing steel strands due to corrosion. For this purpose accelerated corrosion procedure has been conducted on these strands in laboratory conditions. Corrosion consequences were analyzed for various duration of accelerated corrosion process. The ultrasonic techniques and metal magnetic memory (MMM) method were used in this experimental study. The results show the application potential of ultrasonic techniques to analyze the effect of damage induced by accelerated corrosion on the nonlinear elastic behaviour of a steel strands. A new parameter, based on sensing of the magnetic field strength in the form of residual magnetization on the surface of the material, has been used in this study. Appraising parameters of measurement by the metal magnetic memory method were presented in the form of magnetogram – dependence of the magnetic field strength and field gradient on the measured distance. The changes of the magnetic field strength proved different stress concentration zones in the steel strands due to corrosion consequences. Subsequently, the differently corroded strands were subjected to tensile tests in order to determine their mechanical properties to verify and complement results of non-destructive tests.
Klíčová slova
cracking, Electrochemical corrosion, pre-stressing steel strands, nonlinear ultrasonic testing, metal magnetic memory method
Autoři
Vydáno
1. 12. 2021
Nakladatel
e-journal NDT.net
Místo
Dresden, Germany
ISSN
1435-4934
Periodikum
The e-Journal of Nondestructive Testing
Ročník
2021-12
Číslo
12
Stát
Spolková republika Německo
Strany od
1
Strany do
10
Strany počet
URL
https://www.ndt.net/search/docs.php3?id=26457
BibTex
@inproceedings{BUT176582, author="Monika {Manychová}", title="Use of Non-destructive Techniques to Detect Damage Induced by Corrosion of Pre-stressing Steel Strands", booktitle="NDT in Pogress", year="2021", journal="The e-Journal of Nondestructive Testing", volume="2021-12", number="12", pages="1--10", publisher="e-journal NDT.net", address="Dresden, Germany", issn="1435-4934", url="https://www.ndt.net/search/docs.php3?id=26457" }
Dokumenty
Článek_NDT.net.pdf