Microcapsule‐Based Visualization Smart Sensors for Damage Detection: Principles and Applications

• DOI: 10.1002/admt.201900832
• Publication Date: 2019-12-11T15:00:58Z
• Authors: Xu Zheng; Qing Wang; Yao Li; Jinjin Luan; Ning Wang
• Keywords: Structural Health Monitoring; Smart material

Abstract The smart sensor is an effective way to detect damage and improve structural safety in health monitoring. Microcapsule‐based visualization sensors stand out from the sensors. Here, research progress of microcapsule materials recent years summarized sensing principles, influence factors, performances, applications, future prospects are introduced. achieve visualizing function fabrication microcapsules that encapsulated with solutions dyes or indicator. When protective shell broken, will be released activated under optical, chemical, mechanical conditions. These visualized can added interior structure prepared as a coating provide monitoring surface structure. They accurately microcracks highlight them bright colors. Additionally, applications coatings concrete, asphalt, steel presented detailed examples. development application these great significance improving life avoiding failure engineering.