Guided wave particle motion in a hollow cylinder

Li Zhang, Joseph Lawrence Rose

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In the ultrasonic guided wave inspection of hollow cylinders, defect sensitivity of a wave mode is critical for improving results. In order to achieve a high sensitivity of defect detection, it is important to concentrate energy on the expected defect spot. A study of the particle motion contributes to determining the radial energy distribution (known as wave structure) in a pipe. In this paper, the normalized displacements of axisymmetric and non- axisymmetric longitudinal/torsional wave modes are simulated by using the normal mode expansion method. Our investigation shows that wave structures are highly frequency-dependent. Particularly, the dominant particle motion direction, of either a single wave mode or a mode family, changes with frequency variety. Hence, this particle motion study can also help the phased-array focusing inspection technique by determing the particle motion component and the relationship to focusing.

Original languageEnglish (US)
Title of host publicationReview of Progress in Quantitative Nondestructive Evaluation Volume 24
Number of pages6
StatePublished - Apr 9 2005
EventReview of Progress in Quantitative Nondestructive Evaluation - Golden, CO, United States
Duration: Jul 25 2004Jul 30 2004

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


OtherReview of Progress in Quantitative Nondestructive Evaluation
Country/TerritoryUnited States
CityGolden, CO

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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