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Theoretical investigation of nonlinear ultrasonic wave modulation spectroscopy at crack interface
This paper studies theoretical results of a nonlinear ultrasonic method based on interaction of two elastic waves of different frequencies. A virtual Nonlinear Wave Modulation Spectroscopy experiment is pe...
BI - Akustika a kmity
- 2014 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Nonlinear wave modulation spectroscopy: Quasistatic solution and experimental evidence
Nonlinear Wave Modulation Spectroscopy (NWMS) is one of Nonlinear Elastic Wave consists of simultaneous excitation of a specimen by two harmonic waves with frequencies f 0 resp. f 1. Nonlinear...
JK - Koroze a povrchové úpravy materiálu
- 2012 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Nonlinear Wave Modulation and Time Reversal Tomography of Structural Defects
as nonlinear tomography procedures, are discussed in this paper. Two NEWS techniques are considered: Nonlinear wave modulation (NWMS) and nonlinear time reversal (NLTR), both of elastic waves tra...
BI - Akustika a kmity
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Self-phase modulation in slow-wave structures: A comparative numerical analysis
Self-phase modulation effects in 1D optical Slow-Wave Structures made of Fabry-Perot cavities coupled by Distributed Bragg Refectors are discussed. The nonlinear response of the structure is investigated by a comparative an...
BH - Optika, masery a lasery
- 2007 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Detection of structural damage of aluminum alloy 6082 using elastic wave modulation spectroscopy
Nonlinear elastic wave modulation spectroscopy (NEWMS) experiments were performed on aluminum alloy grade 6082.The cracks were confirmed by electron microscopy....
BI - Akustika a kmity
- 2008 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Nonlinear elastic wave spectroscopy of polymer samples with laser induced cracks
of nonlinear effects is discussed, and some examples of results obtained by application of nonlinear wave modulation technique are presented.The concepts of NDT methods based on nonlinear elastic wave...
BI - Akustika a kmity
- 2004 •
- D
Rok uplatnění
D - Stať ve sborníku
Control of Nonlinear Standing Waves in Acoustic Resonators
-modulated primary waves. This method makes possible to control energy transfer among the generation of higher harmonics and thus suppress the nonlinear saturation effect. At the same time it offers new possibilities for ex...
BI - Akustika a kmity
- 2010 •
- O
Rok uplatnění
O - Ostatní výsledky
Damage Detection in Mg Alloys by Nonlinear Ultrasonic Spectroscopy
Nondestructive evaluation by using nonlinear ultrasonic spectroscopy (NEWS) was performed on flat samples of Mg alloys. Initial state of variously prepared specimen was tested by two-frequency NEWS method - nonlinear wave <...
JS - Řízení spolehlivosti a kvality, zkušebnictví
- 2010 •
- D
Rok uplatnění
D - Stať ve sborníku
Parametric excitation of nonlinear standing waves in acoustic resonator
The paper deals with parametric excitation of nonlinear standing waves which radiates an amplitude modulated ultrasonic waves. When a frequency of the demodulated wave is equal to some lower eigen-frequenc...
BI - Akustika a kmity
- 2009 •
- D
Rok uplatnění
D - Stať ve sborníku
Nondestructive evaluation of corrosion damage of Al-alloys by in-situ AE monitoring and nonlinear elastic wave spectroscopy testing
by the nonlinear wave modulation spectroscopy method (NWMS). Specimens made of Al-alloy L-beams in situ during corrosion process. Nonlinear parameters of the samples were measured was determined by AE, the amount ...
BI - Akustika a kmity
- 2011 •
- D
Rok uplatnění
D - Stať ve sborníku
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