Highly-Efficient Damage Location for Freeform Structures Based on Flexible Piezoelectric Transducers

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Traditional structural health monitoring (SHM) techniques based on lamb waves are greatly limited in the industrial applications in freeform structures due to the unreconfigurable rigid piezoelectric sensors. Here we have proposed an approach based on flexible macro-fiber composite (MFC) sensors for precise damage location in freeform aluminum plate benefitting from the flexibility and durability of the MFC. Due to the unidirectional behavior of MFC transducer, the receiver with rosette arrangement is introduced to determine the direction of the lamb waves. Thus, the damage, illuminated by the lamb waves actuated by MFC transducers, can be located accurately by two MFC rosettes. Our preliminary results validate the effectiveness and applicability of the proposed detection approach, which opens a new avenue toward the SHM techniques on the complex structures.

Original languageEnglish
Title of host publicationICSMD 2021 - 2nd International Conference on Sensing, Measurement and Data Analytics in the Era of Artificial Intelligence
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665427470
DOIs
StatePublished - 2021
Event2nd International Conference on Sensing, Measurement and Data Analytics in the Era of Artificial Intelligence, ICSMD 2021 - Nanjing, China
Duration: 21 Oct 202123 Oct 2021

Publication series

NameICSMD 2021 - 2nd International Conference on Sensing, Measurement and Data Analytics in the Era of Artificial Intelligence

Conference

Conference2nd International Conference on Sensing, Measurement and Data Analytics in the Era of Artificial Intelligence, ICSMD 2021
Country/TerritoryChina
CityNanjing
Period21/10/2123/10/21

Keywords

  • LWs
  • MFC
  • SHM
  • damage location
  • freeform structures
  • rosette
  • sensor
  • transducer

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