Location

Santa Cruz, CA

Start Date

1-1-1984 12:00 AM

Description

It is well known that partial contact of two rough surfaces leads to transmission of an acoustic signal across the crack, thus giving rise to a reduced probability of detection (POD). To explore the effects of such partial contact on transmission, diffraction, scattering and mode conversion of an acoustic signal, samples have been developed in which an interface simulates a true fatigue crack. Some of the effects of these interfaces on a longitudinal acoustic wave have been studied experimentally and will be reported.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

3A

Chapter

Chapter 2: Ultrasonics

Section

Scattering

Pages

199-206

DOI

10.1007/978-1-4684-1194-2_18

Language

en

File Format

application/pdf

Share

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Jan 1st, 12:00 AM

Interactions of Simulated Partially Closed Cracks with Acoustic Waves

Santa Cruz, CA

It is well known that partial contact of two rough surfaces leads to transmission of an acoustic signal across the crack, thus giving rise to a reduced probability of detection (POD). To explore the effects of such partial contact on transmission, diffraction, scattering and mode conversion of an acoustic signal, samples have been developed in which an interface simulates a true fatigue crack. Some of the effects of these interfaces on a longitudinal acoustic wave have been studied experimentally and will be reported.