Location

La Jolla, CA

Start Date

1-1-1987 12:00 AM

Description

This work was motivated by a disagreement between the results obtained from two computations of scattering of an axially incident elastic p-wave on a circular crack. One calculation, using the method of Mai [1], involving the direct solution of the Helmholtz integral equation for this case, shows the total cross-section oscillating with a considerable amplitude about σtot = 27πa2 as a function of kRa with period π, where kR = 2π/λR 2 is the Rayleigh surface wavenumber.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

6A

Chapter

Chapter 1: General Techniques—Fundamentals

Section

Ultrasonics

Pages

79-86

DOI

10.1007/978-1-4613-1893-4_8

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Acoustic Wave Scattering from a Circular Crack: Comparison of Different Computational Methods

La Jolla, CA

This work was motivated by a disagreement between the results obtained from two computations of scattering of an axially incident elastic p-wave on a circular crack. One calculation, using the method of Mai [1], involving the direct solution of the Helmholtz integral equation for this case, shows the total cross-section oscillating with a considerable amplitude about σtot = 27πa2 as a function of kRa with period π, where kR = 2π/λR 2 is the Rayleigh surface wavenumber.