A method for identifying deformation and destruction stages by location of critical points of a reconstructed flow of acoustic-emission events

A method for identifying the stages of deformation and destruction processes in materials on the basis of detection and location of the critical points (local extrema and inflection points) of the recorded parameters of the reconstructed flow of acoustic-emission events. The issues of the applicabil...

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Bibliographic Details
Published in:Russian journal of nondestructive testing 2008-08, Vol.44 (8), p.517-526
Main Author: Builo, S. I.
Format: Article
Language:English
Subjects:
Acoustic Methods
Characterization and Evaluation of Materials
Chemistry and Materials Science
Materials Science
Structural Materials
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Summary:A method for identifying the stages of deformation and destruction processes in materials on the basis of detection and location of the critical points (local extrema and inflection points) of the recorded parameters of the reconstructed flow of acoustic-emission events. The issues of the applicability of this method to both the flaw-formation processes and the phenomenon of Poisson flow of events accompanying the AE model. A method for reconstructing the parameters of the initial flow of AE events inside a material based on the recorded AE signals is described. It is shown that the reconstruction procedure appreciably increases the accuracy and reliability of the results of AE diagnostics of the stages observed in flaw-formation processes.
ISSN:1061-8309
1608-3385
DOI:10.1134/S1061830908080019