Anomalous behaviour of leaky surface waves for stiffening layer near cutoff

Zinin, Pavel; Lefeuvre, O.; Briggs, G. A. D.; Zeller, B. D.; Cawley, P.; Kinloch, A. J.; Thompson, G.E.

doi:10.1063/1.365867

Cited by 27 publications

(12 citation statements)

References 12 publications

(13 reference statements)

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“…This second type of behavior of the dispersion relation has been called the splitting type. The non-splitting type of behaviour has been observed experimentally in an alumina film on aluminium by acoustic microscopy [16], in doped Cr coatings deposited on high speed steel [17], in a titanium film on steel by SBS [18], in diamond-like-films (DCL) [19]. Splitting type of behavior has been observed recently for Si 3 N 4 films on GaAs [9].…”

Section: Resultsmentioning

confidence: 94%

<title>Elastic properties of cBN films by surface Brillouin scattering</title>

Zinin

Manghnani

Zhang

et al. 2002

Smart Nondestructive Evaluation for Health Monitoring of Structural and Biological Systems

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Surface Brillouin scattering (SBS) has been used to determine the elastic properties of thin hard submicron films cBN deposited on silicon. In case of cBN films, only the Rayleigh mode can be clearly identified in the Brillouin spectra. The elastic properties of the films have been determined by fitting experimental data to theoretical dispersion curves. A Green's function method was used to predict Brillouin scattering spectra of the acoustic excitation at the free surface. Our results demonstrate that the effect of thin hBN interlayer located between cBN film and Si substrate on the velocity of surface acoustic wave (SAW) does not exceed 2% for thin (16 nm film) and is negligible for cBN films thicker than 100 nm. The elastic properties of the cBN films are not softer than those of bulk cBN.

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Section: Resultsmentioning

confidence: 94%

<title>Elastic properties of cBN films by surface Brillouin scattering</title>

Zinin

Manghnani

Zhang

et al. 2002

Smart Nondestructive Evaluation for Health Monitoring of Structural and Biological Systems

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“…This situation has been discussed by P. Zinin [5] et al using V(z) curves. Here, we consider the phenomenon from the viewpoint of attenuation caused by viscosity of adhesive layers.…”

Section: Fast On Slowmentioning

confidence: 87%

“…Many years ago, Mason and Thurston [4] described surface acoustic waves (SAWs) in half substrate-coatings. Zininet et al [5] pointed out that a pseudo-Rayleigh wave leaks energy into substrate. Lawr ultrasonics have been widely used to study the SAWs of multilayered adhesive structures [6][7][8][9], and its advantages include providing a non-contact, wide band, perfect source.…”

Section: Introductionmentioning

confidence: 99%

Propagation characteristic of laser-generated visco-elastic Rayleigh-like waves in stratified half-space

Han

Shen

Jiang

et al. 2016

J Wireless Com Network

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This paper reports on a study of the propagation characteristics of visco-elastic, Rayleigh-like waves in stratified half-space structures. Beginning with the Kelvin model, the characterization equation and the normal displacement of visco-elastic Rayleigh waves in stratified half-space structures are derived and the influence of the visco-elastic modulus on dispersion and attenuation is discussed. Theoretical calculations show that the attenuation-frequency curves perfectly match the phase-frequency curves. The effect of visco-elasticity on the attenuation of the Rayleigh-like wave is larger than its effect on dispersion. For "weak viscosity," the attenuation is directly proportional to the viscosity modulus and the shear viscosity has a greater impact on the dispersion curves than does the bulk viscosity. The transient response of a visco-elastic Rayleigh wave is also simulated by means of Laplace and Hankel inversion transforms. The results are in good agreement with the theoretic predictions. It is believed the paper's results and conclusions will provide insights and guidance for estimating visco-elastic parameters and for assessing adhesive quality.

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“…This situation has been discussed by P. Zinin [6] et al using V(z) curves. Here we consider the phenomenon from the viewpoint of attenuation caused by viscosity of adhesive layers.…”

Section: Fast On Slowmentioning

confidence: 90%

Propagation of laser-generated visco-elastic Rayleigh-like waves in coatings

Han

Jiang

Jia

et al. 2015

2015 IEEE Far East NDT New Technology &Amp; Application Forum (FENDT)

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This paper reports on a study of the propagation characteristics of visco-elastic, Rayleigh-like waves in coatings. Beginning with the Kelvin model, the characterization equation and the normal displacement of visco-elastic Rayleigh waves in stratified half-space structures are derived and the influence of the visco-elastic modulus on dispersion and attenuation are discussed. The transient response of a visco-elastic Rayleigh wave is also simulated by means of Laplace and Hankel inversion transforms. The results are in good agreement with the theoretic predictions. It is believed the paper's results and conclusions will provide insights and guidance for estimating visco-elastic parameters.

show abstract

Anomalous behaviour of leaky surface waves for stiffening layer near cutoff

Cited by 27 publications

References 12 publications

<title>Elastic properties of cBN films by surface Brillouin scattering</title>

<title>Elastic properties of cBN films by surface Brillouin scattering</title>

Propagation characteristic of laser-generated visco-elastic Rayleigh-like waves in stratified half-space

Propagation of laser-generated visco-elastic Rayleigh-like waves in coatings

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