Location

Snowmass Village, CO

Start Date

1-1-1995 12:00 AM

Description

The wedge method of generating guided waves in isotropic layers, originally analyzed theoretically and experimentally by Viktorov and colleagues [1–2], has recently been extended to encompass generally anisotropic layers and transducers with arbitrary pressure distributions [3–4]. One result of these analyses was that there is a continuous dependence of the excitation amplitude of any given mode on the incident angle of the wedge. In [3–4], explicit expressions were given for the excitation amplitude as a function of incident angle; given the transducer size, pressure profile and frequency. In this paper, predictions in [3–4] are tested against laboratory experiments to asses their validity.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

14A

Chapter

Chapter 1: Standard Techniques

Section

Guided Wave Propagation

Pages

171-178

DOI

10.1007/978-1-4615-1987-4_18

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Analysis of the Generation of Guided Waves Using Finite Sources: An Experimental Approach

Snowmass Village, CO

The wedge method of generating guided waves in isotropic layers, originally analyzed theoretically and experimentally by Viktorov and colleagues [1–2], has recently been extended to encompass generally anisotropic layers and transducers with arbitrary pressure distributions [3–4]. One result of these analyses was that there is a continuous dependence of the excitation amplitude of any given mode on the incident angle of the wedge. In [3–4], explicit expressions were given for the excitation amplitude as a function of incident angle; given the transducer size, pressure profile and frequency. In this paper, predictions in [3–4] are tested against laboratory experiments to asses their validity.