{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,4]],"date-time":"2025-11-04T23:37:20Z","timestamp":1762299440327,"version":"build-2065373602"},"reference-count":38,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2020,7,21]],"date-time":"2020-07-21T00:00:00Z","timestamp":1595289600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"joint Foundation of Shaanxi","award":["2019JLM-54"],"award-info":[{"award-number":["2019JLM-54"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>To detect the stress of steel structures and members using the existing magnetism, a magnetic stress sensing system integrating a magnetic flux induction coil, a magnetic flux measurement device, a loaded device, and data acquisition software was developed. The magnetic coupling test research was carried out for different grades of structural building and bridge steel specimens to establish the magnetic stress flux mathematical model, and the fitting equation of the magnetic flux changes with the positions of different sections of specimens was analyzed. Furthermore, a practical formula for stress detection was obtained through the experiments. Meanwhile, on these bases, the typical steel truss structure model of a Bailey beam was designed and manufactured under different working conditions, nondestructive online stress testing was carried out, and the stress of the model structure and its members was measured by strain and magnetic flux tests to obtain the curves of the test results for the stress\u2013strain and magnetic stress flux, respectively. The results of these two methods are in good agreement with each other. The stress of the steel truss model structure was analyzed and calculated using the finite element method. The results agreed well with the experimental results from the magnetic stress sensing system\u2014the maximum error was about 5%, which meets the requirements of engineering applications.<\/jats:p>","DOI":"10.3390\/s20144043","type":"journal-article","created":{"date-parts":[[2020,7,21]],"date-time":"2020-07-21T06:38:55Z","timestamp":1595313535000},"page":"4043","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Magnetic Stress Sensing System for Nondestructive Stress Testing of Structural Steel and Steel Truss Components Based on Existing Magnetism"],"prefix":"10.3390","volume":"20","author":[{"given":"Guangyuan","family":"Weng","sequence":"first","affiliation":[{"name":"Mechanical Engineering College, Xi\u2019an Shiyou University, Xi\u2019an 710065, China"}]},{"given":"Jintao","family":"Wang","sequence":"additional","affiliation":[{"name":"Mechanical Engineering College, Xi\u2019an Shiyou University, Xi\u2019an 710065, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3966-5363","authenticated-orcid":false,"given":"Yang","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Urban Planning and Municipal Engineering, Xi\u2019an Polytechnic University, Xi\u2019an 710048, China"}]},{"given":"Xiyu","family":"Zhu","sequence":"additional","affiliation":[{"name":"Mechanical Engineering College, Xi\u2019an Shiyou University, Xi\u2019an 710065, China"}]},{"given":"Jianbo","family":"Dai","sequence":"additional","affiliation":[{"name":"Mechanical Engineering College, Xi\u2019an Shiyou University, Xi\u2019an 710065, China"}]}],"member":"1968","published-online":{"date-parts":[[2020,7,21]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Kang, B.H., Kim, J.H., Choi, K.Y., and Gwak, K.W. 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