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 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 language | English (US) |
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Pages (from-to) | 317-321 |
Number of pages | 5 |
Journal | Journal of Pressure Vessel Technology, Transactions of the ASME |
Volume | 127 |
Issue number | 3 |
DOIs | |
State | Published - Aug 2005 |
All Science Journal Classification (ASJC) codes
- Safety, Risk, Reliability and Quality
- Mechanics of Materials
- Mechanical Engineering