Design and experimental research of stress measurement system for ferromagnetic components based on ACSM method

Abstract

Stress is one of the important factors that cause fatigue and fracture of ferromagnetic components, and its accurate measurement is of great significance to ensure the safety and reliability of components. Accordingly, a set of alternating magnetic field stress measurement system was designed and developed. The system includes a measurement sensor, DDS signal excitation module, signal conditioning module, signal acquisition, and processing module. The system was used to carry out uniaxial tensile testing of Q235 steel, and the influence of different testing parameters on the testing signal was studied. The research results show that: in the elastic stage, there is a good linear relationship between the real part of the detection signal and the tensile stress. This characteristic quantity can be used to evaluate the stress of ferromagnetic materials; In addition, the correlation coefficient and sensitivity of different detection parameters were compared through linear fitting analysis, and a set of best detection parameters were obtained. Under this parameter, the correlation coefficient reaches 0.991, and the sensitivity is 7.318 mV/kN. The above research provides test methods and techniques for ferromagnetic material stress measurement.

Keywords

Non-destructive testing inverse magnetostriction alternating current stress measurement ferromagnetic materials residual stress

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References

Feng

Steel plate stress measuring device based on coercive force. Mod Ind Eco Info 2020; 10: 94–96.

Ren

Sun

, et al. Research on stress measurement of ferromagnetic materials based on coercivity and remanence. China Meas Test 2018; 44: 16–22.

Ren

, et al. Studies on stress-magnetism coupling effect for 35 steel components. Insight 2010; 52: 305–309.

Yang

Liu

Gao

, et al. Metal magnetic memory testing method and application based on GMR effect. Chinese J Sci Instrum 2013; 34: 809–816.

Zhou

Tian

Wang

, et al. Evaluation of applied stress using pulsed eddy current technology. Chinese J Sci Instrum 2010; 31: 1588–1593.

Chen

Liu

YJ.

Residual stress measurement system of bend tube based on DSCM. Chinese J Sci Instrum 2011; 32: 2382–2387.

Low

Wong

BS.

Defect evaluation using the alternating current field measurement technique. Insight 2004; 46: 598–605.

Lugg

Topp

Keynes

, et al. Recent developments and applications of the ACFM inspection method and ASCM stress measurement method. In: Proceedings of the 9th ECNDT, Berlin, Germany, 2006.

Papaelias

Lugg

Roberts

, et al. High-speed inspection of rails using ACFM techniques. NDT&E INT 2009; 42: 328–335.

10.

Chen

Brennan

FP.

A theoretical and experimental study of alternating current stress measurement under different loading modes. J Strain Anal Eng 1998; 33: 291–303.

11.

Han

Brennan

Dover

WD.

Development of the alternating current stress measurement model for magnetostriction behaviour of mild steel under orthogonal magnetic fields for stress measurement. J Strain Anal Eng 2002; 37: 21–31.

12.

Zhou

Dover

WD.

Electromagnetic induction in anisotropic half-space and electromagnetic stress model. J Appl Phys 1998; 83: 1694–1701.

13.

Zeng

, et al. Research on the stress measurement of steel plate based on inverse magnetostrictive effect. J Mech Eng 2014; 50: 17–22.

14.

Sablik

Chen

Jiles

. Modified law of approach for the magnetomechanical model. In: Proceedings of the review of progress in quantitative nondestructive evaluation, Montreal, QC, Canada, 25–30 July 1999.

15.

Sun

Yang

XS.

Research on technology of electromagnetic stress sensor for steel materials. Transd Microsyst Technol 2011; 30:37–42.

16.

Wen

Ning

Zhang

YZ.

Development of technology and application for magnetostrictive sensor. Transd Microsyst Technol 2003; 22: 1–4.