基于磁扰动状态下Q235钢应力梯度的无损表征

Jingyu Di, Cunfu He, Xiucheng Liu, Yungchun Lee

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)

摘要

The stress nondestructive testing of ferromagnetic materials based on the electromagnetics principle has broad application prospects in engineering practice. By a new understanding of the incremental permeability concept, a perturbation magnetization method of ferromagnetic materials under the periodic magnetization process of a low-frequency strong magnetic field superimposed a high-frequency alternating weak magnetic field is proposed. By extracting the average incremental permeability during a magnetization period of the strong field, the stress gradient in pure bending state and the total amount of magneto-elastic energy distributed along the depth generated by a four-point bending device loaded with Q235 steel have been nondestructively characterized. Through two sets of parallel experiments under different parameter settings, it is verified that the proposed testing method can effectively detect the internal stress gradient of the specimen under loading conditions and the total amount of magneto-elastic energy distributed along the depth. The two sets of experimental results are general, indicating that the detection method is feasible, and has a certain practical value in engineering applications.

貢獻的翻譯標題The Q235 Steel Stress Gradient Nondestructive Characterization Based on the Magnetic Perturbation
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頁(從 - 到)569-574
頁數6
期刊Chinese Journal of Sensors and Actuators
34
發行號5
DOIs
出版狀態Published - 2021 5月

All Science Journal Classification (ASJC) codes

  • 控制與系統工程
  • 電氣與電子工程

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