Research on non-destructive detection method of steel plate internal stress based on magnetoelastic effect
Source abstract
Abstract
.Online detection of residual stress distribution in strip steel has become a difficult problem due to the limitation of complex working conditions and large size. Therefore, A non-destructive detection method of transmissive magnetic detection of stress based on magnetoelastic effect was proposed. A magnetic model of ferromagnetic materials was established and the detection mechanism of the method was revealed. Further, the influence of multiple parameters on the output signal was discussed, the working model of the detection system was established, and the validity of the method was verified by different materials. The mechanism of electromagnetic detection is that the effect of stress on the magnetic properties of the material is converted into a change in the induced electromotive force of the detection coil. The sensitivity of the stress detection system can be improved by increasing the excitation coil turns, and the best gap and angle between the sensor and the sample are 2 mm and 45°, respectively. The detection method applies to different steel grades, with the most intense output signal for non-oriented steels. The maximum error of multi-channel detection does not exceed 5%. This research guides online detection of stress in strip steel.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnetic Properties and Applications · Non-Destructive Testing Techniques · Welding Techniques and Residual Stresses
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
University of Science and Technology Beijing
Funding
Fundamental Research Funds for the Central Universities · Research and Development
References (45)
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