Development of dispersion curves for two-layered cylinders using laser ultrasonics

Markus Kley, Christine Valle, Laurence J. Jacobs, Jianmin Qu, Jacek Jarzynski

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

In this paper, laser-ultrasonic techniques are employed to develop a quantitative understanding of the underlying principles of the propagation of guided circumferential waves in two-layered cylindrical components. The high- fidelity, broad-bandwidth, point source/receiver and noncontact nature of these optical techniques are critical elements to the success of this work. The experimental procedure consists of measuring a series of transient, circumferentially propagating waves in a cylindrical waveguide and then operating on these transient waveforms with signal-processing techniques to develop the dispersion relationship for that waveguide; this procedure extracts the steady-state behavior from a series of transient measurements. These dispersion curves are compared to theoretical values there is good agreement between the experimental and theoretical results, thus demonstrating the accuracy and effectiveness of using laser-ultrasonic techniques to study the propagation of guided circumferential waves.

Original languageEnglish
Pages (from-to)582-588
Number of pages7
JournalJournal of the Acoustical Society of America
Volume106
Issue number2
DOIs
StatePublished - 1999

Fingerprint

Dive into the research topics of 'Development of dispersion curves for two-layered cylinders using laser ultrasonics'. Together they form a unique fingerprint.

Cite this