Damage detection in underwater composite structures using ultrasonic guided waves

Fei Yan, Owen M. Malinowski, Xiang Zhao, Joseph L. Rose

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An ultrasonic guided wave based damage detection technique has been developed for structural health monitoring (SHM) of composite structures submerged in water. Specially designed guided wave transducers are utilized to selectively excite and receive guided waves with dominant shear horizontal particle displacements. It has been shown that the SH type waves are insensitive to water loading conditions. With appropriate water sealing, the transducers can be applied to composite structures submerged in water. The guided wave signals collected from an underwater composite structure are almost identical to the signals that are obtained before the structure is submerged. Experiments have been conducted to demonstrate the feasibility of damage detection in underwater composite structures. A thick carbon/epoxy composite beam is used as the test sample. Excellent damage detection results were obtained for both dry and underwater tests.

Original languageEnglish (US)
Title of host publicationHealth Monitoring of Structural and Biological Systems 2012
DOIs
StatePublished - Jun 6 2012
EventHealth Monitoring of Structural and Biological Systems 2012 - San Diego, CA, United States
Duration: Mar 12 2012Mar 15 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8348
ISSN (Print)0277-786X

Other

OtherHealth Monitoring of Structural and Biological Systems 2012
CountryUnited States
CitySan Diego, CA
Period3/12/123/15/12

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Damage detection in underwater composite structures using ultrasonic guided waves'. Together they form a unique fingerprint.

  • Cite this

    Yan, F., Malinowski, O. M., Zhao, X., & Rose, J. L. (2012). Damage detection in underwater composite structures using ultrasonic guided waves. In Health Monitoring of Structural and Biological Systems 2012 [83482P] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8348). https://doi.org/10.1117/12.917727