Reconstruction of the spatial dependency of dielectric and geometrical properties of adhesively bonded structures

C. Mackay, D. Hayward, A.J. Mulholland, S. McKee, R.A. Pethrick

Research output: Contribution to journalArticle

4 Citations (Scopus)
72 Downloads (Pure)

Abstract

An inverse problem motivated by the nondestructive testing of adhesively bonded structures used in the aircraft industry is studied. Using transmission line theory, a model is developed which, when supplied with electrical and geometrical parameters, accurately predicts the reflection coefficient associated with such structures. Particular attention is paid to modelling the connection between the structures and the equipment used to measure the reflection coefficient. The inverse problem is then studied and an optimization approach employed to recover these electrical and geometrical parameters from experimentally obtained data. In particular the approach focuses on the recovery of spatially varying geometrical parameters as this is paramount to the successful reconstruction of electrical parameters. Reconstructions of structure geometry using this method are found to be in close agreement with experimental observations.
Original languageEnglish
Pages (from-to)1943-1949
Number of pages6
JournalJournal of Physics D: Applied Physics
Volume38
Issue number12
DOIs
Publication statusPublished - 3 Jun 2005

Keywords

  • aircraft industry
  • adhesively bonded structures

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