Publication detail

Noise spectroscopy of mechanically stressed insulating materials

KOKTAVÝ, B. KOKTAVÝ, P.

Original Title

Noise spectroscopy of mechanically stressed insulating materials

Type

journal article - other

Language

English

Original Abstract

After the application of mechanical stress to a solid, cracks are formed and a redistribution of electric charge takes place. The crack faces are charged with opposite charges thus forming a time variable electric dipole or a double-layer. Hence they become sources of an electromagnetic field, which may be detected in the vicinity of the solid in question by means of appropriate sensors. The practical application of this phenomenon is in the diagnostics of non-conducting materials and structures under mechanical stress, and, particularly, for registering the generation and evolution of micro-cracks and other defects in materials and their localization.

Keywords

Crack, electric charge, electromagnetic emission, acoustic emission

Authors

KOKTAVÝ, B.; KOKTAVÝ, P.

RIV year

2007

Released

9. 9. 2007

Publisher

AIP

Location

Melville, New York

ISBN

0094-243X

Periodical

AIP conference proceedings

Year of study

922

Number

1

State

United States of America

Pages from

298

Pages to

301

Pages count

4

BibTex

@article{BUT47735,
  author="Bohumil {Koktavý} and Pavel {Koktavý}",
  title="Noise spectroscopy of mechanically stressed insulating materials",
  journal="AIP conference proceedings",
  year="2007",
  volume="922",
  number="1",
  pages="298--301",
  issn="0094-243X"
}