Guided wave focusing mechanics in pipe

Takahiro Hayashi, Koichiro Kawashima, Zongqi Sun, Joseph Lawrence Rose

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

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
Volume456
DOIs
StatePublished - Nov 24 2003
Event2003 ASME Pressure Vessels and Piping Conference - Cleveland, OH, United States
Duration: Jul 20 2003Jul 24 2003

Fingerprint

Guided electromagnetic wave propagation
Mechanics
Pipe
Inspection
Finite element method
Defects

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Hayashi, Takahiro ; Kawashima, Koichiro ; Sun, Zongqi ; Rose, Joseph Lawrence. / Guided wave focusing mechanics in pipe. In: American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP. 2003 ; Vol. 456. pp. 35-41.
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Guided wave focusing mechanics in pipe. / Hayashi, Takahiro; Kawashima, Koichiro; Sun, Zongqi; Rose, Joseph Lawrence.

In: American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, Vol. 456, 24.11.2003, p. 35-41.

Research output: Contribution to journalConference article

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T1 - Guided wave focusing mechanics in pipe

AU - Hayashi, Takahiro

AU - Kawashima, Koichiro

AU - Sun, Zongqi

AU - Rose, Joseph Lawrence

PY - 2003/11/24

Y1 - 2003/11/24

N2 - 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.

AB - 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.

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JO - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP

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