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A novel embedded fiber optic acoustic emission sensor and its applications for monitoring failures of composite laminates

  • Harbin Institute of Technology

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

Abstract

A fiber optic acoustic emission sensor based on fused-tapered coupler and its applications in structural health monitoring are proposed in this paper. The sensor was embedded into the Carbon Fiber Reinforced Polymer (CFRP) laminates and tested using pencil lead break tests compared with the commercial acoustic emission sensor (R15 PZT). It successfully detected the AE signals. FOAES was applied in the Structural Health Monitoring (SHM) of CFRP materials. Failures of carbon fiber/epoxy composite laminates during three-point- bending test were monitored embedded FOAES. Results identified that the sensor embedded into composite structures successfully monitored failures of composite laminates online.

Original languageEnglish
Title of host publicationSmart Sensor Phenomena, Technology, Networks, and Systems 2009
DOIs
StatePublished - 2009
EventSmart Sensor Phenomena, Technology, Networks, and Systems 2009 - San Diego, CA, United States
Duration: 9 Mar 200911 Mar 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7293
ISSN (Print)0277-786X

Conference

ConferenceSmart Sensor Phenomena, Technology, Networks, and Systems 2009
Country/TerritoryUnited States
CitySan Diego, CA
Period9/03/0911/03/09

Keywords

  • Acoustic emission
  • CFRP materials
  • Composite structures
  • Fiber optic sensor
  • Structural health monitoring (SHM)

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