{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,26]],"date-time":"2026-04-26T08:40:33Z","timestamp":1777192833443,"version":"3.51.4"},"reference-count":36,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2018,8,11]],"date-time":"2018-08-11T00:00:00Z","timestamp":1533945600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012166","name":"National Key Research and Development Program of China","doi-asserted-by":"publisher","award":["2017YFC0806007"],"award-info":[{"award-number":["2017YFC0806007"]}],"id":[{"id":"10.13039\/501100012166","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100014219","name":"National Science Fund for Distinguished Young Scholars","doi-asserted-by":"publisher","award":["51425801"],"award-info":[{"award-number":["51425801"]}],"id":[{"id":"10.13039\/501100014219","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Major Topic Special Key Research and Development Project of the Arti\ufb01cial Intelligence Technology Innovation in Chongqing","award":["cstc2017rgzn-zdyfX0018"],"award-info":[{"award-number":["cstc2017rgzn-zdyfX0018"]}]},{"name":"Major Topic Special Key Research and Development Project of the Arti\ufb01cial Intelligence Technology Innovation in Chongqing","award":["cstc2017rgzn-zdyfX0029"],"award-info":[{"award-number":["cstc2017rgzn-zdyfX0029"]}]},{"name":"Science and Technology Planning Project of Yunnan Province of China","award":["2017IB025"],"award-info":[{"award-number":["2017IB025"]}]},{"name":"Science and Technology Planning Project of Nanjing of China","award":["201727002"],"award-info":[{"award-number":["201727002"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This paper presents a nondestructive test method to evaluate the residual bending strength of corroded reinforced concrete beam by analyzing the self-magnetic flux leakage (SMFL) signals. The automatic scanning device was equipped with a micromagnetic sensor and sensor-based experimental details were introduced. Next, the theoretical formula of the normal component HS(z) of the SMFL signal that originated from the corroded region was derived based on the magnetic dipole model and the experimental results were discussed. The results indicate that the experimental data of HS(z) are consistent with the theoretical calculations, both location and extent of the steel bars corrosion can be qualitatively determined by using HS(z). The gradient K of HS(z) is approximately linearly related to the loss rate, S, of the bending strength, which can be used to evaluate the residual bending strength of the corroded reinforced concrete beam. This work lays the foundation for evaluating the residual bending strength of corroded reinforced concrete beams using the SMFL signal; the micromagnetic sensor is further applied to the civil engineering.<\/jats:p>","DOI":"10.3390\/s18082635","type":"journal-article","created":{"date-parts":[[2018,8,13]],"date-time":"2018-08-13T11:27:13Z","timestamp":1534159633000},"page":"2635","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":27,"title":["Experimental Study on Residual Bending Strength of Corroded Reinforced Concrete Beam Based on Micromagnetic Sensor"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5981-4696","authenticated-orcid":false,"given":"Jianting","family":"Zhou","sequence":"first","affiliation":[{"name":"College of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Junli","family":"Qiu","sequence":"additional","affiliation":[{"name":"College of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yingxin","family":"Zhou","sequence":"additional","affiliation":[{"name":"Yunnan Wuyi Expressway Construction Command, Kunming 650000, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yi","family":"Zhou","sequence":"additional","affiliation":[{"name":"Chongqing Yapai Bridge Engineering Quality Inspection Co., Ltd., Chongqing 401120, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6129-4984","authenticated-orcid":false,"given":"Runchuan","family":"Xia","sequence":"additional","affiliation":[{"name":"College of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,8,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"473","DOI":"10.1016\/j.engstruct.2017.03.013","article-title":"Distributed strain sensing to assess corroded RC beams","volume":"6","author":"Davis","year":"2017","journal-title":"Eng. 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