Effect of tensile and compressive stresses on magnetic memory signal and its mechanism

LENG Jian-cheng; TIAN Hong-xu; GUO Ya-guang; XU Ming-xiu

doi:10.13374/j.issn2095-9389.2018.05.006

Volume 40 Issue 5

May 2018

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LENG Jian-cheng, TIAN Hong-xu, GUO Ya-guang, XU Ming-xiu. Effect of tensile and compressive stresses on magnetic memory signal and its mechanism[J]. Chinese Journal of Engineering, 2018, 40(5): 565-570. doi: 10.13374/j.issn2095-9389.2018.05.006

Citation:

LENG Jian-cheng, TIAN Hong-xu, GUO Ya-guang, XU Ming-xiu. Effect of tensile and compressive stresses on magnetic memory signal and its mechanism[J]. Chinese Journal of Engineering, 2018, 40(5): 565-570. doi: 10.13374/j.issn2095-9389.2018.05.006

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Effect of tensile and compressive stresses on magnetic memory signal and its mechanism

doi: 10.13374/j.issn2095-9389.2018.05.006

1) School of Mechanical Science and Engineering, Northeast Petroleum University, Daqing 163318, China
2) School of Astronautics, Harbin Institute of Technology, Harbin 150001, China
3) School of Mathematical and Physics, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2017-07-18

Abstract

Abstract

The tensile and compressive stresses of demagnetized specimens made of Q235 steel were tested, and magnetic signal variation characteristics under different tensile and compressive stresses were continuously recorded using a magnetic memory on-line monitoring system. The results demonstrate that the resultant magnetic field first decreases and then increases induced by tensile load and becomes stable when approaching and exceeding 0.3 times the yielding strength of the material, while the resultant magnetic field induced by compressive stress rapidly decreases in the initial stage and then fluctuates. The model for J-A magnetomechanical effect was improved by introducing different stress demagnetization terms caused by tensile and compressive stresses, and the simulation results are consistent with the experimental data, which can be used for theoretically explaining different mechanisms induced by tensile and compressive stresses.
- magnetic memory effect,
- tensile and compressive stress,
- stress demagnetization,
- on-line monitoring

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References(13)

References

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