Detail publikačního výsledku

ANALYSIS AND APPLICATIONS OF METHODS FOR NONLINEAR ULTRASONIC SPECTROSCOPY

Stepan Hefner, Karel Hajek, Petr Sedlak

Originální název

ANALYSIS AND APPLICATIONS OF METHODS FOR NONLINEAR ULTRASONIC SPECTROSCOPY

Anglický název

ANALYSIS AND APPLICATIONS OF METHODS FOR NONLINEAR ULTRASONIC SPECTROSCOPY

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Present ultrasonic non-destructive testing (NDT) methods of material are mainly based on analysis of elastic wave reflection, absorption and interference. The ultrasonic testing has some practical limitations, mainly for inhomogeneous materials. The nonlinear ultrasonic spectroscopy is evolved as a new way to improving the NDT and it offer some new possibilities for the NDT. Therefore this paper offers the analysis, principles, limitations and various methods for nonlinear ultrasonic spectroscopy. Methods are mainly based on frequency analysis. Materials with undamaged structure are essentially linear in their response, while the same material, when damaged, becomes highly nonlinear. In spectrograms it's represented by harmonics and sideband generation. The first experimental results are also shown.

Anglický abstrakt

Present ultrasonic non-destructive testing (NDT) methods of material are mainly based on analysis of elastic wave reflection, absorption and interference. The ultrasonic testing has some practical limitations, mainly for inhomogeneous materials. The nonlinear ultrasonic spectroscopy is evolved as a new way to improving the NDT and it offer some new possibilities for the NDT. Therefore this paper offers the analysis, principles, limitations and various methods for nonlinear ultrasonic spectroscopy. Methods are mainly based on frequency analysis. Materials with undamaged structure are essentially linear in their response, while the same material, when damaged, becomes highly nonlinear. In spectrograms it's represented by harmonics and sideband generation. The first experimental results are also shown.

Klíčová slova

ultrasonic, NDT, nonlinear ultrasonic spectroscopy

Klíčová slova v angličtině

ultrasonic, NDT, nonlinear ultrasonic spectroscopy

Autoři

Stepan Hefner, Karel Hajek, Petr Sedlak

Vydáno

01.01.2005

Nakladatel

University of Miskolc

Místo

University of Miskolc, Miskolc, Hungary

ISBN

9636616787

Kniha

5th International Conference of PhD Students

Strany od

313

Strany počet

8

BibTex

@inproceedings{BUT15030,
  author="Štěpán {Hefner} and Karel {Hájek} and Petr {Sedlák}",
  title="ANALYSIS AND APPLICATIONS OF METHODS FOR NONLINEAR ULTRASONIC SPECTROSCOPY",
  booktitle="5th International Conference of PhD Students",
  year="2005",
  number="1",
  pages="8",
  publisher="University of Miskolc",
  address="University of Miskolc, Miskolc, Hungary",
  isbn="9636616787"
}