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Comparison of PZT, PZT Based 1–3 Composite and PMN–PT Acoustic Emission Sensors for Glass Fiber Reinforced Plastics

  • Geonwoo Kim
  • Mu-Kyung Seo
  • Namkyoung Choi
  • Yong-Il Kim
  • Ki-Bok KimEmail author
Regular Paper
  • 13 Downloads

Abstract

Glass fiber reinforced plastics (GFRP) have been widely used for wind turbine blades because of the relative ease of manufacturing them into complex shapes, and their excellent fatigue and corrosion resistance. Acoustic emission (AE) testing has become a primary method for monitoring fiber reinforced plastic structures. However, commercial PZT based AE sensors for general usage may not be useful for GFRP wind-turbine blades because of the acoustic mismatching between GFRP and AE sensors. The objective of this study is to develop high sensitive AE sensors for use on GFRP. To accomplish it, PZT based 1–3 composite and PMN–PT single crystal AE sensors were fabricated and their performances were compared with PZT AE sensor. As results, the PZT based 1-3 composite and PMN–PT AE sensors showed better performance than the PZT AE sensor. PZT based 1-3 composite and PMN–PT AE sensors will be promising alternatives to PZT AE sensors for GFRP materials.

Keywords

Acoustic emission KLM model PZT PZT 1–3 composite PMN–PT single crystal GFRP 

Notes

Acknowledgements

This research was carried out with the support of the project development of rail-damage detection inspection and monitoring system for advanced prevention railway obstruction (18RTRP-B113566-03) among the railroad technology research projects supported by the Korea Agency for infrastructure Technology Advancement (KAIA).

Supplementary material

12541_2019_55_MOESM1_ESM.zip (1.8 mb)
Supplementary material 1 (ZIP 1831 kb)

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Copyright information

© Korean Society for Precision Engineering 2019

Authors and Affiliations

  • Geonwoo Kim
    • 1
  • Mu-Kyung Seo
    • 2
  • Namkyoung Choi
    • 1
  • Yong-Il Kim
    • 2
  • Ki-Bok Kim
    • 1
    • 2
    Email author
  1. 1.Department of Science of MeasurementUniversity of Science and TechnologyDaejeonRepublic of Korea
  2. 2.Division of Technology ServicesKorea Research Institute of Standards and ScienceDaejeonRepublic of Korea

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