Magnetoelastic Effect-Based Transmissive Stress Detection for Steel Strips: Theory and ExperimentReport as inadecuate


Magnetoelastic Effect-Based Transmissive Stress Detection for Steel Strips: Theory and Experiment


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School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China





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Academic Editor: Vittorio M. N. Passaro

Abstract For the deficiencies of traditional stress detection methods for steel strips in industrial production, this paper proposes a non-contact stress detection scheme based on the magnetoelastic effect. The theoretical model of the transmission-type stress detection is established, in which the output voltage and the tested stress obey a linear relation. Then, a stress detection device is built for the experiment, and Q235 steel under uniaxial tension is tested as an example. The result shows that the output voltage rises linearly with the increase of the tensile stress, consistent with the theoretical prediction. To ensure the accuracy of the stress detection method in actual application, the temperature compensation, magnetic shielding and some other key technologies are investigated to reduce the interference of the external factors, such as environment temperature and surrounding magnetic field. The present research develops the theoretical and experimental foundations for the magnetic stress detection system, which can be used for online non-contact monitoring of strip flatness-related stress tension distribution or longitudinal residual stress in the steel strip rolling process, the quality evaluation of strip flatness after rolling, the life and safety assessment of metal construction and other industrial production links. View Full-Text

Keywords: magnetoelastic effect; stress detection; mathematical model; temperature compensation; magnetic shielding magnetoelastic effect; stress detection; mathematical model; temperature compensation; magnetic shielding





Author: Qingdong Zhang, Yuanxiao Su, Liyuan Zhang * , Jia Bi and Jiang Luo

Source: http://mdpi.com/



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