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Russian Journal of Nondestructive Testing
Published in: Russian Journal of Nondestructive Testing 4/2020

01-04-2020 | ACOUSTIC METHODS

Reconstructing Defect Radiation Amplitude Based on Acoustic Emission Signals under Conditions of a Plane Stress State

Authors: V. N. Berkovich, S. I. Builo

Published in: Russian Journal of Nondestructive Testing | Issue 4/2020

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Abstract

We consider the problem of steady-state vibrations generated by a defect in an elastic material that is at the stage of prefracture under conditions of a plane stress state. The process of radiation of acoustic emission (AE) by a defect extending to the free boundary of the elastic body is investigated. The problem is to reconstruct the defect radiation amplitudes based on AE signals at the free boundary of the body. The inverse reconstruction problem is studied and solved on the basis of the variational approach. The data of numerical calculation of radiation parameters are presented for aluminum.
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Metadata
Title
Reconstructing Defect Radiation Amplitude Based on Acoustic Emission Signals under Conditions of a Plane Stress State
Authors
V. N. Berkovich
S. I. Builo
Publication date
01-04-2020
Publisher
Pleiades Publishing
Published in
Russian Journal of Nondestructive Testing / Issue 4/2020
Print ISSN: 1061-8309
Electronic ISSN: 1608-3385
DOI
https://doi.org/10.1134/S1061830920040038

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