Studying the influence of the scale factor on the parameters of mechoelectric transformations during elastic excitation of concrete

T. V. Fursa, Konstantin Yurievich Osipov, S. I. Chekhovskikh

Research output: Contribution to journalArticle

Abstract

The results of experimental studies of the influence of the geometrical dimensions of heavy-concrete articles on the parameters of the electric response under an elastic impact excitation are presented. It is established that an increase in the length of models at a constant cross section leads to a decrease in the electrical-response magnitude and an increase in the signal attenuation factor, as well as to a shift of the main spectral maximum of electrical signals toward lower frequencies and a change in the positions and ration of significant spectral peaks. It is shown that changes in the geometric dimensions of heavy-concrete articles do not lead to appreciable changes in the maximum cross-correlation coefficient between the electrical-response spectrum and the spectrum of freely damped harmonic oscillations.

Original languageEnglish
Pages (from-to)636-641
Number of pages6
JournalRussian Journal of Nondestructive Testing
Volume49
Issue number11
DOIs
Publication statusPublished - Nov 2013

Keywords

  • amplitude-frequency characteristics
  • attenuation
  • concrete
  • cross-correlation coefficient
  • electrical response to an impact excitation
  • scale factor

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Condensed Matter Physics
  • Materials Science(all)

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