Location

La Jolla, CA

Start Date

1-1-1987 12:00 AM

Description

The ultrasonic attenuation of a solid containing a distribution of voids depends on the number of voids per unit volume and the ultrasonic scattering cross-section of the voids. This physical picture has been shown to provide an accurate description of the attenuation behavior of ultrasound in metals containing low level porosity. For example, methods developed from this model for evaluating the average size and the volume fraction of porosity in cast aluminum have yielded good results [1].

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

6B

Chapter

Chapter 6: Advanced Composites

Section

Defects

Pages

1185-1193

DOI

10.1007/978-1-4613-1893-4_135

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Evaluation of Porosity in Graphite-Epoxy Composite by Frequency Dependence of Ultrasonic Attenuation

La Jolla, CA

The ultrasonic attenuation of a solid containing a distribution of voids depends on the number of voids per unit volume and the ultrasonic scattering cross-section of the voids. This physical picture has been shown to provide an accurate description of the attenuation behavior of ultrasound in metals containing low level porosity. For example, methods developed from this model for evaluating the average size and the volume fraction of porosity in cast aluminum have yielded good results [1].