Development of Elasto-Magneto-Electric (EME) Sensor for In-Service Cable Force Monitoring

Yuan Feng Duan, Ru Zhang, Chuan Zhi Dong, Yao Zhi Luo, Siu Wing Or, Yang Zhao, Ke Qing Fan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

25 Citations (Scopus)

Abstract

Stress/force monitoring of in-service steel structures is challenging but crucial to the evaluation of structural safety. A smart elasto-magneto-electric (EME) sensor was recently proposed by the authors for stress monitoring of steel components not only with the superiorities of the traditional elasto-magnetic (EM) sensors such as noncontact monitoring, actual-stress measurement, low cost, corrosion resistance and long expected service-life, but also with higher sensitivity, faster response and higher signal-To-noise ratio (SNR). In this paper, the application of the developed EME sensory system on the cable force monitoring of the Second Jiaojiang Bridge in China is presented. Full-scale experiment, factory calibration and in situ verification for engineering applications were successively carried out, which verify that the EME sensor is feasible and reliable to monitor the in-service cable force as a nondestructive testing (NDT) tool. Long-Term on-line monitoring of the cable forces is in progress and the typical monitoring data over 7 months are presented and discussed. It is demonstrated that the proposed EME sensor is feasible for the in-service force monitoring of steel cables and that the EME sensory technology is suitable for developing the stable and reliable long-Term monitoring system for steel structures.
Original languageEnglish
Article number1640016
JournalInternational Journal of Structural Stability and Dynamics
Volume16
Issue number4
DOIs
Publication statusPublished - 1 May 2016

Keywords

  • elasto-magneto-electric (EME) sensor
  • long-Term monitoring
  • magneto-electric (ME) laminated composites
  • steel cable
  • Stress/force monitoring

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Aerospace Engineering
  • Ocean Engineering
  • Mechanical Engineering
  • Applied Mathematics

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