Publication result detail

Detection of Inhomogeneities and Cracks in Composite Materials by the Method of Partial Discharges

KOKTAVÝ, P.; TRČKA, T.; KOKTAVÝ, B.; ŠTOUDEK, R.

Original Title

Detection of Inhomogeneities and Cracks in Composite Materials by the Method of Partial Discharges

English Title

Detection of Inhomogeneities and Cracks in Composite Materials by the Method of Partial Discharges

Type

WoS Article

Original Abstract

Composite materials such as concrete or polymer fiber composites contain a large number of inhomogeneities. It is possible to use the method of partial discharges to detect existing inhomogeneities. Tested materials covered with metal electrodes on both sides represent a parallel plate capacitor. Partial discharges have an impact on conductivity at a high electric field and they are important sources of current noise and acoustic emission signals. The concrete samples were measured before and after mechanical loading by the method of partial discharges and the correlation between them was studied. This method may be used for the diagnosis of inhomogeneities and cracks in composite materials.

English abstract

Composite materials such as concrete or polymer fiber composites contain a large number of inhomogeneities. It is possible to use the method of partial discharges to detect existing inhomogeneities. Tested materials covered with metal electrodes on both sides represent a parallel plate capacitor. Partial discharges have an impact on conductivity at a high electric field and they are important sources of current noise and acoustic emission signals. The concrete samples were measured before and after mechanical loading by the method of partial discharges and the correlation between them was studied. This method may be used for the diagnosis of inhomogeneities and cracks in composite materials.

Keywords

Partial discharges, electromagnetic emission, acoustic emission, crack, composite material, concrete

Key words in English

Partial discharges, electromagnetic emission, acoustic emission, crack, composite material, concrete

Authors

KOKTAVÝ, P.; TRČKA, T.; KOKTAVÝ, B.; ŠTOUDEK, R.

RIV year

2015

Released

01.01.2014

Publisher

Trans tech publication

Location

Switzerland

ISBN

1013-9826

Periodical

Key Engineering Materials (print)

Volume

592-593

Number

1

State

Swiss Confederation

Pages from

549

Pages to

552

Pages count

4

BibTex

@article{BUT107378,
  author="Pavel {Koktavý} and Tomáš {Trčka} and Bohumil {Koktavý} and Richard {Štoudek}",
  title="Detection of Inhomogeneities and Cracks in Composite Materials by the Method of Partial Discharges",
  journal="Key Engineering Materials (print)",
  year="2014",
  volume="592-593",
  number="1",
  pages="549--552",
  doi="10.4028/www.scientific.net/KEM.592-593.549",
  issn="1013-9826"
}