On a criterion for testing the stress-strain state of dielectric materials

V. P. Surzhikov, N. N. Khorsov, A. A. Demikhova

Research output: Contribution to journalArticle

Abstract

Experimental results on studying the electromagnetic emission of uniaxially compressed dielectric composite materials based on epoxy adhesive with a filler are provided. Time instances of the response of mechanoelectrical transformations (MET) to an acoustic pulse have been recorded. Analysis of the results has shown that the linearity of the dependence of a criterion for testing the stress-strain state Ki on the pressure applied to a sample only manifests itself if the sample size contains an integer number of half-waves and the generated normal vibrations are standing waves. It has been established that the transverse symmetric and longitudinal antisymmetric waves render the main contribution to the MET response for the determined critical frequency values.

Original languageEnglish
Pages (from-to)213-219
Number of pages7
JournalRussian Journal of Nondestructive Testing
Volume53
Issue number3
DOIs
Publication statusPublished - 1 Mar 2017

Fingerprint

critical frequencies
longitudinal waves
Testing
fillers
standing waves
adhesives
integers
linearity
electromagnetism
vibration
composite materials
acoustics
Fillers
Adhesives
pulses
Acoustics
Composite materials

Keywords

  • acoustic vibrations
  • mechanoelectrical transformations
  • nondestructive testing
  • wavelength

ASJC Scopus subject areas

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

Cite this

On a criterion for testing the stress-strain state of dielectric materials. / Surzhikov, V. P.; Khorsov, N. N.; Demikhova, A. A.

In: Russian Journal of Nondestructive Testing, Vol. 53, No. 3, 01.03.2017, p. 213-219.

Research output: Contribution to journalArticle

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