Location

La Jolla, CA

Start Date

1-1-1998 12:00 AM

Description

Waveform based acoustic emission (AE) analysis is an emerging technique for nondestructive monitoring of the integrity of structures in service. In contrast to conventional AE studies, a detailed understanding of wave propagation characteristics is required in order to correlate the information from detected AE signals to their sources representing various failure modes. AE source characterization can be carried out by using the sensor output waveform, identifying unknown signals and evaluating their significance, and correlating identified signals to the failure modes. This requires efficient evaluation of the surface response due to each elementary microfracture source (represented by moment tensor components) in the plate.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

17A

Chapter

Chapter 1: Standard Techniques

Section

Acoustic Emission and Applications

Pages

485-492

DOI

10.1007/978-1-4615-5339-7_63

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Rapid Calculation of Lamb Waves in Plates Due to Localized Sources

La Jolla, CA

Waveform based acoustic emission (AE) analysis is an emerging technique for nondestructive monitoring of the integrity of structures in service. In contrast to conventional AE studies, a detailed understanding of wave propagation characteristics is required in order to correlate the information from detected AE signals to their sources representing various failure modes. AE source characterization can be carried out by using the sensor output waveform, identifying unknown signals and evaluating their significance, and correlating identified signals to the failure modes. This requires efficient evaluation of the surface response due to each elementary microfracture source (represented by moment tensor components) in the plate.