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Article type: Research Article
Authors: Su, Sanqinga | Wei, Luxia | Wang, Weia; | Yang, Yiyia | Ma, Xiaopinga | Zuo, Fulianga
Affiliations: [a] School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, China
Correspondence: [*] Corresponding author: Wei Wang, School of Civil Engineering, Xi’an University of Architecture and Technology, No. 13, Yanta Road, Shaanxi, 710055, China. Tel.: +86 13992812694; E-mail: [email protected]
Abstract: Metal magnetic memory testing (MMMT) is a nondestructive testing technique that can detect early damage of component. In order to distinguish the effect of normal stress and shear stress on magnetic field, the flexural loading testing of inclined steel box girder with corrugated web is carried out by four-point bending pattern, and the normal component of the magnetic field at different position of the beam under different load level are collected. It is found that the law of normal component of the magnetic field changing with load is similar under different stress states, but the amplitude is quite different. The stress in Jiles–Atherton model can be replaced by equivalent stress when calculating the magnetic field under shear stress.
Keywords: Metal magnetic memory testing (MMMT), bridge steel Q345qC, four-point bending, shear stress, equivalent stress
DOI: 10.3233/JAE-190075
Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 62, no. 3, pp. 501-516, 2020
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