Computer Research and Modeling
RUS  ENG    JOURNALS   PEOPLE   ORGANISATIONS   CONFERENCES   SEMINARS   VIDEO LIBRARY   PACKAGE AMSBIB  
General information
Latest issue
Archive

Search papers
Search references

RSS
Latest issue
Current issues
Archive issues
What is RSS



Computer Research and Modeling:
Year:
Volume:
Issue:
Page:
Find






Personal entry:
Login:
Password:
Save password
Enter
Forgotten password?
Register


Computer Research and Modeling, 2019, Volume 11, Issue 4, Pages 653–673
DOI: https://doi.org/10.20537/2076-7633-2019-11-4-653-673
(Mi crm734)
 

This article is cited in 5 scientific papers (total in 5 papers)

MODELS IN PHYSICS AND TECHNOLOGY

Investigation the material properties of a plate by laser ultrasound using the analysis of multiple waves

A. V. Favorskayaab

a Moscow Institute of Physics and Technology, 9 Institytsky Pereylok, Dolgoprudny, Moscow Region, 141700, Russia
b Scientific Research Institute for System Studies of the Russian Academy of Sciences, 36/1 Nahimovskij av., Moscow, 117218, Russia
Full-text PDF (658 kB) Citations (5)
References:
Abstract: Ultrasound examination of material properties is a precision method for determining their elastic and strength properties in connection with the small wavelength formed in the material after impact of a laser beam. In this paper, the wave processes arising during these measurements are considered in detail. It is shown that full-wave numerical modeling allows us to study in detail the types of waves, topological characteristics of their profile, speed of arrival of waves at various points, identification the types of waves whose measurements are most optimal for examining a sample made of a specific material of a particular shape, and to develop measurement procedures.
To carry out full-wave modeling, a grid-characteristic method on structured grids was used in this work and a hyperbolic system of equations that describes the propagation of elastic waves in the material of the thin plate under consideration on a specific example of a ratio of thickness to width of 1:10 was solved.
To simulate an elastic front that arose in the plate due to a laser beam, a model of the corresponding initial conditions was proposed. A comparison of the wave effects that arise during its use in the case of a point source and with the data of physical experiments on the propagation of laser ultrasound in metal plates was made.
A study was made on the basis of which the characteristic topological features of the wave processes under consideration were identified and revealed. The main types of elastic waves arising due to a laser beam are investigated, the possibility of their use for studying the properties of materials is analyzed. A method based on the analysis of multiple waves is proposed. The proposed method for studying the properties of a plate with the help of multiple waves on synthetic data was tested, and it showed good results.
It should be noted that most of the studies of multiple waves are aimed at developing methods for their suppression. Multiple waves are not used to process the results of ultrasound studies due to the complexity of their detection in the recorded data of a physical experiment.
Due to the use of full wave modeling and analysis of spatial dynamic wave processes, multiple waves are considered in detail in this work and it is proposed to divide materials into three classes, which allows using multiple waves to obtain information about the material of the plate.
The main results of the work are the developed problem statements for the numerical simulation of the study of plates of a finite thickness by laser ultrasound; the revealed features of the wave phenomena arising in plates of a finite thickness; the developed method for studying the properties of the plate on the basis of multiple waves; the developed classification of materials.
The results of the studies presented in this paper may be of interest not only for developments in the field of ultrasonic non-destructive testing, but also in the field of seismic exploration of the earth's interior, since the proposed approach can be extended to more complex cases of heterogeneous media and applied in geophysics.
Keywords: study of the properties of materials, plates, laser ultrasound, mathematical modeling, numerical methods, computer simulation, grid-characteristic method, multiple waves.
Funding agency Grant number
Russian Foundation for Basic Research 18-31-20063
The reported study was funded by RFBR according to the research project № 18-31-20063.
Received: 27.02.2019
Revised: 20.06.2019
Accepted: 18.07.2019
Document Type: Article
UDC: 519.63
Language: Russian
Citation: A. V. Favorskaya, “Investigation the material properties of a plate by laser ultrasound using the analysis of multiple waves”, Computer Research and Modeling, 11:4 (2019), 653–673
Citation in format AMSBIB
\Bibitem{Fav19}
\by A.~V.~Favorskaya
\paper Investigation the material properties of a plate by laser ultrasound using the analysis of multiple waves
\jour Computer Research and Modeling
\yr 2019
\vol 11
\issue 4
\pages 653--673
\mathnet{http://mi.mathnet.ru/crm734}
\crossref{https://doi.org/10.20537/2076-7633-2019-11-4-653-673}
Linking options:
  • https://www.mathnet.ru/eng/crm734
  • https://www.mathnet.ru/eng/crm/v11/i4/p653
  • This publication is cited in the following 5 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
    Computer Research and Modeling
     
      Contact us:
     Terms of Use  Registration to the website  Logotypes © Steklov Mathematical Institute RAS, 2024