Investigation on SMFL Field Distribution of Different Types of Rebars under Axial Tensile Failure Tests
Publication: Journal of Materials in Civil Engineering
Volume 36, Issue 10
Abstract
Structural safety performance is intricately tied to the stress level of rebars. The force-magnetic coupling relationship of rebar is a current focal point. Research gaps exist in the influence pattern of the appearance and shape of rebars on the mechanical and magnetic properties. This study conducted axial tensile failure tests on HRB400 ribbed rebars and HPB300 round rebars with different diameters. Variations in mechanical and magnetic indices were monitored and recorded to analyze the force-magnetic coupling effect in rebars. Results reveal that, concerning mechanical properties, increasing rebar diameter led to higher yield and ultimate strains, resulting in increased ultimate deformation. Ribbed rebars with a bumpy cross section differed from the smooth cross section of round rebars, leading to variations in the curves of tensile elongation percentage () versus section reduction percentage () for different rebar types. Regarding magnetic properties, the self-magnetic flux leakage (SMFL) intensity of ribbed rebar surpassed that of round rebar. SMFL curves in the elastic-plastic articulation stage exhibited contrast wave peaks, with rebar diameter positively correlating with the fluctuation range. Variations in leakage gradient curves indicated a stronger force-magnetic coupling relationship in the elastic and yielding stages and a weaker relationship in the strengthening stage. This research establishes the groundwork for nondestructive testing of rebar stress and enhances understanding of force-magnetic coupling in different rebar types.
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Data Availability Statement
Some or all data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This work was supported by the National Natural Science Foundation of China (U20A20314), the Chongqing Natural Science Foundation of China (CSTB2022NSCQ-LZX0006 and cstc2022ycjh-bgzxm0086), and the Research and Innovation Program for Graduate Students in Chongqing (CYB240246).
References
Chinese Standard. 2017. Steel for the reinforcement of concrete–Part 1: Hot rolled plain bars. GB/T 1499.1-2017. Beijing: China Planning Press.
Chinese Standard. 2018. Steel for the reinforcement of concrete–Part 2: Hot rolled ribbed bars. GB/T 1499.2-2018. Beijing: China Planning Press.
Dong, Z., C. Fu, C. Lu, X. Ramón Nóvoa, and H. Ye. 2023. “Effect of stress on the critical chloride content of steel bar in simulated concrete pore solution.” J. Mater. Civ. Eng. 35 (10): 04023350. https://doi.org/10.1061/JMCEE7.MTENG-16037.
Fan, W.-Y., Y. Chen, J.-Q. Li, Y. Sun, H. Hassanin, and P. Sareh. 2021. “Machine learning applied to the design and inspection of reinforced concrete bridges: Resilient methods and emerging applications.” Structures 33 (Oct): 3954–3963. https://doi.org/10.1016/j.istruc.2021.06.110.
Fernandez, I., J.-M. Bairán, and A.-R. Marí. 2015. “Corrosion effects on the mechanical properties of reinforcing steel bars. Fatigue and -ε behavior.” Constr. Build. Mater. 101 (Dec): 772–783. https://doi.org/10.1016/j.conbuildmat.2015.10.139.
Fu, C.-Q., J. Huang, Z. Dong, C. Song, and Y. Zhang. 2023. “Shear behavior of reinforced concrete beams subjected to accelerated non-uniform corrosion.” Eng. Struct. 286 (Jul): 116081. https://doi.org/10.1016/j.engstruct.2023.116081.
Gkournelos, P.-D., T.-C. Triantafillou, and D.-A. Bournas. 2021. “Seismic upgrading of existing reinforced concrete buildings: A state-of-the-art review.” Eng. Struct. 240 (Oct): 112273. https://doi.org/10.1016/j.engstruct.2021.112273.
Huang, J.-H., Z. Dong, C.-Q. Fu, T.-F. Qiu, C.-B. Liu, Z.-J. Li, and X.-Q. Che. 2022. “Evaluation of nonuniform corrosion of steel in concrete based on two-yoke magnetic sensor.” J. Mater. Civ. Eng. 34 (9): 04022204. https://doi.org/10.1061/(ASCE)MT.1943-5533.0004356.
Koson-Schab, A., and J. Szpytko. 2020. “Investigation of the impact of load on the magnetic field strength of the crane by the magnetic metal memory technique.” Materials 13 (23): 5559. https://doi.org/10.3390/ma13235559.
Liu, B., X.-M. Xue, J.-M. Li, R.-F. Li, S.-Y. Dong, and J.-X. Fang. 2019. “Grain size effect on metal magnetic memory signal for stress damage evaluation of low carbon steel.” Nondestruct. Test. Eva. 34 (3): 267–282. https://doi.org/10.1080/10589759.2019.1590830.
Maurizio, M., C.-W. Wang, T. Taylor, M. Etemadi, and F. Ansari. 2024. “Distributed detection and quantification of cracks in operating large bridges.” J. Bridge Eng. 29 (1): 04023101. https://doi.org/10.1061/JBENF2.BEENG-6454.
Maurizio, M., C.-W. Wang, Y. Ying, T. Taylor, and F. Ansari. 2023. “Stress–strain response of optical fibers in direct tension.” J. Eng. Mech. 149 (7): 04023037. https://doi.org/10.1061/JENMDT.EMENG-6990.
Moonesan, M., and M. Kashefi. 2018. “Effect of sample initial magnetic field on the metal magnetic memory NDT result.” J. Magn. Magn. Mater. 460 (15): 285–291. https://doi.org/10.1016/j.jmmm.2018.04.006.
Qu, Y.-H., H. Zhang, R.-Q. Zhao, L. Fu, and J.-T. Zhou. 2021. “Study on working stress measurement method for steel bars inside RC bridges based on self-magnetic flux leakage spatial signals.” Measurement 178 (Jun): 109371. https://doi.org/10.1016/j.measurement.2021.109371.
Ren, S.-K., X.-Z. Ren, Z.-X. Duan, and Y.-W. Fu. 2019. “Studies on influences of initial magnetization state on metal magnetic memory signal.” NDT&E Int. 103 (Apr): 77–83. https://doi.org/10.1016/j.ndteint.2019.02.002.
Shi, P.-P., P.-G. Bai, H.-E. Chen, S.-Q. Su, and Z.-M. Chen. 2020. “The magneto-elastoplastic coupling effect on the magnetic flux leakage signal.” J. Magn. Magn. Mater. 504 (15): 166669. https://doi.org/10.1016/j.jmmm.2020.166669.
Thompson, S.-M., and B.-K. Tanner. 1993. “The magnetic properties of pearlitic steels as a function of carbon content.” J. Magn. Magn. Mater. 123 (3): 283–298. https://doi.org/10.1016/0304-8853(93)90454-A.
Tong, K., H. Zhang, R.-H. Zhao, J.-T. Zhou, and H.-J. Ying. 2023a. “Investigation of SMFL monitoring technique for evaluating the load-bearing capacity of RC bridges.” Eng. Struct. 293 (Oct): 116667. https://doi.org/10.1016/j.engstruct.2023.116667.
Tong, K., J.-T. Zhou, X.-T. Ma, H.-J. Ying, and R.-Q. Zhao. 2023b. “Investigation of the effect of initial magnetization state on the force-magnetic coupling effect of rebars.” J. Magn. Magn. Mater. 569 (1): 170382. https://doi.org/10.1016/j.jmmm.2023.170382.
Tong, K., J.-T. Zhou, R.-Q. Zhao, W.-X. Hu, Y.-H. Qu, and C.-S. Chen. 2022a. “Experimental study on rebar stress measurement based on force-magnetic coupling under excited magnetic field.” Measurement 189 (Feb): 110620. https://doi.org/10.1016/j.measurement.2021.110620.
Tong, K., J.-T. Zhou, R.-Q. Zhao, H.-J. Ying, and S.-H. Zhang. 2022b. “Quantitative measurement of stress in steel bars under repetitive tensile load based on force-magnetic coupling effect.” Measurement 202 (Oct): 111820. https://doi.org/10.1016/j.measurement.2022.111820.
Wang, H.-P., L.-H. Dong, H.-D. Wang, G.-Z. Ma, B.-S. Xu, and Y.-C. Zhao. 2021a. “Effect of tensile stress on metal magnetic memory signals during on-line measurement in ferromagnetic steel.” NDT&E Int. 117 (Jan): 102378. https://doi.org/10.1016/j.ndteint.2020.102378.
Wang, W.-Y., Z.-Q. Wang, Z.-S. Liang, and L. Xu. 2021b. “Effect of tensile-strain rate and specimen width on mechanical properties of cold-formed Q345 steel at elevated temperatures.” J. Mater. Civ. Eng. 33 (9): 04021218. https://doi.org/10.1061/(ASCE)MT.1943-5533.0003889.
Williams, C., C. Borigo, J. Rivière, C.-J. Lissenden, and P. Shokouhi. 2022. “Nondestructive evaluation of fracture toughness in 4130 steel using nonlinear ultrasonic testing.” J. Nondestr. Eval. 41 (1): 13. https://doi.org/10.1007/s10921-022-00846-5.
Xu, K.-S., J.-W. Liu, K. Yang, and J. Liu. 2021. “Effect of applied load and thermal treatment on the magnetic memory signal of defect-bearing Q345R steel samples.” J. Magn. Magn. Mater. 539 (1): 168366. https://doi.org/10.1016/j.jmmm.2021.168366.
Yang, J.-F., L. Huang, K. Tong, Q.-Z. Tang, H.-X. Li, H.-N. Cai, and J.-Z. Xin. 2023. “A review on damage monitoring and identification methods for arch bridges.” Buildings 13 (8): 1975. https://doi.org/10.3390/buildings13081975.
Zhang, Y.-L., R.-B. Gou, J.-M. Li, G.-T. Shen, and Y.-J. Zeng. 2012. “Characteristics of metal magnetic memory signals of different steels in high cycle fatigue tests.” Fatigue Fract. Eng. Mater. 35 (7): 595–605. https://doi.org/10.1111/j.1460-2695.2012.01651.x.
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© 2024 American Society of Civil Engineers.
History
Received: Nov 21, 2023
Accepted: Mar 18, 2024
Published online: Jul 30, 2024
Published in print: Oct 1, 2024
Discussion open until: Dec 30, 2024
ASCE Technical Topics:
- Analysis (by type)
- Continuum mechanics
- Coupling
- Curvature
- Design (by type)
- Dynamics (solid mechanics)
- Engineering fundamentals
- Engineering materials (by type)
- Engineering mechanics
- Failure analysis
- Field tests
- Forces (type)
- Geometry
- Magnetic fields
- Materials engineering
- Mathematics
- Metals (material)
- Reinforcing steel
- Solid mechanics
- Steel
- Structural design
- Structural engineering
- Structural members
- Structural safety
- Structural systems
- Tests (by type)
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