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KOKTAVÝ, P. TRČKA, T. KOKTAVÝ, B. ŠTOUDEK, R.
Original Title
Detection of Inhomogeneities and Cracks in Composite Materials by the Method of Partial Discharges
Type
journal article in Web of Science
Language
English
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.
Keywords
Partial discharges, electromagnetic emission, acoustic emission, crack, composite material, concrete
Authors
KOKTAVÝ, P.; TRČKA, T.; KOKTAVÝ, B.; ŠTOUDEK, R.
RIV year
2014
Released
1. 1. 2014
Publisher
Trans tech publication
Location
Switzerland
ISBN
1013-9826
Periodical
Key Engineering Materials (print)
Year of study
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" }