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Soliton-based sensor/actuator for delamination and weak bond detection in laminated composites

  • Eunho Kim
  • , Taru Singhal
  • , Brian Chang
  • , Yong Han Noel Kim
  • , Jinkyu Yang*
  • *Corresponding author for this work
  • University of Washington

Research output: Contribution to conferenceConference paperpeer-review

Abstract

We design, fabricate, and test a new type of sensor/actuator device that uses stress wave solitons to detect the areas of delaminations and potentially weak adhesive bonds in laminated composites. In this technique, by injecting high energy solitons to a specific inspection area and measuring reflected waves simultaneously, we identify delaminations and characterize the quality of adhesive bonding interfaces in a fast and efficient manner. We also simulate the interaction between solitons and delaminations/weak bonds with the finite element method to understand the effect of composite damages on the scattering behavior of solitons. This proposed sensor technology can open a new way in conducting composite structures inspection, contributing to enhancing maintenance and inspection accuracy and efficiency.

Original languageEnglish
Title of host publicationMechanics of Composite and Multifunctional Materials - Proceedings of the 2015 Annual Conference on Experimental and Applied Mechanics
EditorsPiyush R. Thakre, Carter Ralph, Meredith Silberstein, Raman Singh
PublisherSpringer New York LLC
Pages49-53
Number of pages5
ISBN (Print)9783319217611
DOIs
StatePublished - 2016
EventSEM Annual Conference and Exposition on Experimental and Applied Mechanics, 2015 - Costa Mesa, United States
Duration: 2015.06.82015.06.11

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
Volume7
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Conference

ConferenceSEM Annual Conference and Exposition on Experimental and Applied Mechanics, 2015
Country/TerritoryUnited States
CityCosta Mesa
Period15.06.815.06.11

Keywords

  • Damage evaluation
  • Delamination
  • Granular sensor/actuator
  • Soliton
  • Weak bond

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