In this study, magnetomechanical coupling tests were performed on Q235 solid round steel model
specimens in NIM-200HF magnetomechanical coupling equipment. Hysteresis loops were obtained in different
magnetic fields and stresses. Magnetization curves were also achieved at different stresses. Influence of the applied
stresses on the hysteresis loops was investigated. The stress sensitive region and linear stress sensitive region of
magnetic induction were determined for the model specimen according to the experimental data. The dependence
relation of magnetic induction versus applied stresses was established, and the optimum magnetic field was determined
in the stress sensitive range of magnetic induction, which builds a basis for nondestructive testing (NDT)
of stress with the total magnetic flux for steel structure. Based on modified Jiles-Atherton’s model of magnetic
hysteresis, the hysteresis loop for Q235 steel 4-mm diameter model specimen was numerically simulated, which
was well consistent with the experimental results.
XIONG Er-gang1* (熊二刚), WANG She-liang2 (王社良), MIAO Xiao-yu1 (苗晓瑜)
. Research on Magnetomechanical Coupling Effect of
Q235 Steel Member Specimens[J]. Journal of Shanghai Jiaotong University(Science), 2012
, 17(5)
: 605
-612
.
DOI: 10.1007/s12204-012-1332-7
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