Analysis and Processing of Acoustic Emission Signals Under Dynamic Loading of the Microstructure of Continuous Media

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24210%2F22%3A00010142" target="_blank" >RIV/46747885:24210/22:00010142 - isvavai.cz</a>

Result on the web

<a href="https://ieeexplore.ieee.org/document/9926763" target="_blank" >https://ieeexplore.ieee.org/document/9926763</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ELNANO54667.2022.9926763" target="_blank" >10.1109/ELNANO54667.2022.9926763</a>

Result language

angličtina

Original language name

Analysis and Processing of Acoustic Emission Signals Under Dynamic Loading of the Microstructure of Continuous Media

Original language description

The boundary problem of the propagation of acoustic emission signals at the conjugation of two continuous media is considered. A model of a two-layer continuous medium in the form of a chain of linear atoms connected by elastic bonds with a single-point developing defect is proposed. The force and displacement of the particles of the medium were chosen as the main variables. The solution of the boundary value problem in conjugate media using the Green‘s function and the Fourier transform is substantiated. It is shown that the energy spectrum of an acoustic emission is completely determined by the forc constants of materials and the forces initiating the appearance of acoustic emission signals. For a two-layer medium, a metal and a composite coating, significant differences were found in the nature of the acoustic emission signals arising in each material during bending. This feature makes it possible to separately identify and predict the state of each material in the associated environment. The presented solution of the equation of motion of a system of conjugated continuous media with the development of internal structural defects allows one to perform a spectral analysis of the differential operators of elastic energy and their expansion in terms of eigenvalues. Experimental verification of the proposed theoretical model of the energy spectrum of acoustic signals showed that the results of the study can be used to predict the degree of destruction of materials under loading.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20500 - Materials engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

2022 IEEE 41st International Conference on Electronics and Nanotechnology

ISBN

978-1-6654-6922-7

ISSN

2693-3535

e-ISSN

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Number of pages

5

Pages from-to

566-570

Publisher name

Institute of Electrical and Electronics Engineers Inc.

Place of publication

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Event location

Kyjev

Event date

Jan 1, 2022

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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