Composites Science and Engineering ›› 2020, Vol. 0 ›› Issue (9): 111-117.

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RESEARCH PROGRESS IN SELF-DIAGNOSIS COMPOSITES

WEI Jun1,2, YAN Chun2, ZHAO Yue2, ZHAO De-gang3   

  1. 1. Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, China;
    2. Zhejiang Provincial Key Laboratory of Robotics and Intelligent Manufacturing Equipment Technology, Ningbo Institute of Material Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, China;
    3. Ningbo Yuanjing Auto Parts Co., Ltd., Ningbo 315327, China
  • Received:2019-11-25 Online:2020-09-25 Published:2020-09-28

Abstract: Self-diagnosis composites are one kind of functional materials that can dynamically monitor the health of their structures and have been widely applied in many fields, such as aerospace, automobile industry, civil engineering, and so on. In this paper, the self-diagnosis principle of composites is introduced in detail, including self-diagnosis of piezoresistive effect, self-diagnosis of piezoelectric effect and self-diagnosis of optical fiber. The research progress of self-diagnosis resin-based composites and self-diagnosis concrete-based composites is also discussed. Finally, the shortcomings of the current self-diagnostic composites are summarized, and its prospect of application in the future is analyzed.

Key words: self-diagnosis, polymer composites, health monitor, concrete composites

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