Guided wave focusing mechanics in pipe

Takahiro Hayashi, Koichiro Kawashima, Zongqi Sun, Joseph L. Rose

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Guided waves can be used in pipe inspection over long distances. Presented in this paper is a beam focusing technique to improve the S/N ratio of the reflection from a tiny defect. Focusing is accomplished by using nonaxisymmetric waveforms and subsequent time delayed superposition at a specific point in a pipe. A semianalytical finite element method is used to present wave structure in the pipe. Focusing potential is also studied with various modes and frequencies.

Original languageEnglish (US)
Pages (from-to)317-321
Number of pages5
JournalJournal of Pressure Vessel Technology, Transactions of the ASME
Issue number3
StatePublished - Aug 2005

All Science Journal Classification (ASJC) codes

  • Safety, Risk, Reliability and Quality
  • Mechanics of Materials
  • Mechanical Engineering


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