Detail publikačního výsledku

Cracks Creation model Based on Electric Charges Redistribution

KOKTAVÝ, P.

Originální název

Cracks Creation model Based on Electric Charges Redistribution

Anglický název

Cracks Creation model Based on Electric Charges Redistribution

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

During the process of the crack generation the electric charges appear on cracks walls. They create the electric dipole system, which is a source of voltage induced on metal electrodes. Using Shockley-Ramo theorem, the differential equation for induced voltage is derived. The recorded electric signal is superposition of crack walls "self" vibration given by crack length and vibration due to an ultrasonic wave given by sample dimensions. The simultaneous investigation of acoustic and electromagnetic emission signals enable us to localize the crack position in solid and its dimension.

Anglický abstrakt

During the process of the crack generation the electric charges appear on cracks walls. They create the electric dipole system, which is a source of voltage induced on metal electrodes. Using Shockley-Ramo theorem, the differential equation for induced voltage is derived. The recorded electric signal is superposition of crack walls "self" vibration given by crack length and vibration due to an ultrasonic wave given by sample dimensions. The simultaneous investigation of acoustic and electromagnetic emission signals enable us to localize the crack position in solid and its dimension.

Klíčová slova

Crack, Electric Charge, Electromagnetic Emission, Acoustic Emission

Klíčová slova v angličtině

Crack, Electric Charge, Electromagnetic Emission, Acoustic Emission

Autoři

KOKTAVÝ, P.

Rok RIV

2011

Vydáno

01.01.2002

Nakladatel

European Federation for Non-Destructive Testing

Místo

Madrid

ISBN

84-699-8573-6

Kniha

8-th ECNDT

Strany od

231

Strany počet

1

BibTex

@inproceedings{BUT5697,
  author="Pavel {Koktavý}",
  title="Cracks Creation model Based on Electric Charges Redistribution",
  booktitle="8-th ECNDT",
  year="2002",
  number="1.",
  pages="1",
  publisher="European Federation for Non-Destructive Testing",
  address="Madrid",
  isbn="84-699-8573-6"
}