Rapid inspection of composite skin-honeycomb core structures with ultrasonic guided waves

Thomas R. Hay, Lou Wei, Joseph L. Rose, Takahiro Hayashi

Research output: Contribution to journalArticle

56 Scopus citations

Abstract

Guided wave inspection of composite skin-honeycomb core structures is an efficient and sensitive alternative to other common inspection methods. This paper shows that sweeping experimentally through the dispersion curves is an effective way to experimentally locate guided wave modes sensitive to skin-core delamination. Composite skin-Nomex honeycomb core specimens were developed with simulated delaminated areas. The delaminated areas were detected with guided waves and confirmed with conventional ultrasonic testing methods. Calculated phase velocity dispersion curves are given to define the practical phase velocity and frequency ranges. Example wave structures in this range are given to illustrate the change in sensitivity as frequency is swept for a given mode.

Original languageEnglish (US)
Pages (from-to)929-939
Number of pages11
JournalJournal of Composite Materials
Volume37
Issue number10
DOIs
StatePublished - Jun 17 2003

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Materials Chemistry

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