Guided wave focusing mechanics in pipe

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

Research output: Contribution to journalConference articlepeer-review

2 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 non-axisymmetric waveforms and subsequent time delayed superposition at a specific point in a pipe. A semi-analytical 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)35-41
Number of pages7
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
StatePublished - 2003
Event2003 ASME Pressure Vessels and Piping Conference - Cleveland, OH, United States
Duration: Jul 20 2003Jul 24 2003

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering


Dive into the research topics of 'Guided wave focusing mechanics in pipe'. Together they form a unique fingerprint.

Cite this