Publication result detail

Methods for Nonlinear Ultrasonic Spectroscopy

HEFNER, Š., SEDLÁK, P.

Original Title

Methods for Nonlinear Ultrasonic Spectroscopy

English Title

Methods for Nonlinear Ultrasonic Spectroscopy

Type

Paper in proceedings (conference paper)

Original Abstract

The nonlinear ultrasonic testing is quite prolific method but it has some limitations in practical testing, mainly for inhomogeneous materials. Materials with undamaged structure are essentially linear in their response, while the same material, when damaged, becomes highly nonlinear. In spectrograms is it represented by harmonics and sideband generation. The nonlinear ultrasonic spectroscopy is evolved as a new way to improving the NDT and it offers some new possibilities for the NDT. This is the basis for nonlinear wave diagnostics of damage, methods which are remarkably sensitive to the detection and progression of damage in materials. This paper offers analysis, principles and basic methods for nonlinear ultrasonic spectroscopy and also contains their limitations.

English abstract

The nonlinear ultrasonic testing is quite prolific method but it has some limitations in practical testing, mainly for inhomogeneous materials. Materials with undamaged structure are essentially linear in their response, while the same material, when damaged, becomes highly nonlinear. In spectrograms is it represented by harmonics and sideband generation. The nonlinear ultrasonic spectroscopy is evolved as a new way to improving the NDT and it offers some new possibilities for the NDT. This is the basis for nonlinear wave diagnostics of damage, methods which are remarkably sensitive to the detection and progression of damage in materials. This paper offers analysis, principles and basic methods for nonlinear ultrasonic spectroscopy and also contains their limitations.

Keywords

nonlinear ultrasonic spectroscopy, NDT, damage, testing, SIMONRU(A)S, harmonic signal, ULTRASOUND SIGNAL

Key words in English

nonlinear ultrasonic spectroscopy, NDT, damage, testing, SIMONRU(A)S, harmonic signal, ULTRASOUND SIGNAL

Authors

HEFNER, Š., SEDLÁK, P.

Released

01.01.2004

Publisher

VUT Brno

Location

Brno

ISBN

80-214-2636-5

Book

Student EEICT 2004

Edition

Neuveden

Pages from

592

Pages count

5

BibTex

@inproceedings{BUT14231,
  author="Štěpán {Hefner} and Petr {Sedlák}",
  title="Methods for Nonlinear Ultrasonic Spectroscopy",
  booktitle="Student EEICT 2004",
  year="2004",
  series="Neuveden",
  number="První",
  pages="5",
  publisher="VUT Brno",
  address="Brno",
  isbn="80-214-2636-5"
}