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Magnetomechanical Measurements for Nondestructive Evaluation of Failure in Steel Structural Element

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Abstract

This research aims to explore magnetomechanical effect as a nondestructive method to monitor the failure process of steel structural elements subjected to compressive loadings. Experiments on steel tubular joints were carried out to study the relationship between the applied load and the magnetomechanical field. Results show that the mechanical response and the magnetomechanical response demonstrate similar behavior to the applied load in the whole loading progress. At the critical load of buckling, the load-magnetic field curve has a bifurcation point corresponding to the traditional bifurcation of load-displacement curve. This research demonstrates that the stress-induced magnetic filed can be utilized as an important indicator of impending failure in steel structural elements.

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Acknowledgments

This study was supported by the National Natural Science Foundation of China (No. 50901067) and Zhejiang Provincial Natural Science Foundation of China (LZ12E08003).

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Authors and Affiliations

  1. Institute of Structural Engineering, Zhejiang University, Hangzhou, 310058, Zhejiang, People’s Republic of China

    Sheng Bao, Fan Xu, Jiyang Wang & Hangfei Lou

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  1. Sheng Bao
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  2. Fan Xu
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  3. Jiyang Wang
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  4. Hangfei Lou
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Correspondence to Jiyang Wang.

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Bao, S., Xu, F., Wang, J. et al. Magnetomechanical Measurements for Nondestructive Evaluation of Failure in Steel Structural Element. J. of Materi Eng and Perform 22, 1351–1354 (2013). https://doi.org/10.1007/s11665-012-0410-1

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  • DOI: https://doi.org/10.1007/s11665-012-0410-1

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