Grain|boundary Scattering of Surface Acoustic Waves

Grain-boundary Scattering of Surface Acoustic Waves

Grain-boundary scattering is the major contribution to acoustic-wave attenuation in common polycrystalline materials at ultrasonic frequencies.

Numerical modeling using a statistical digital twin of an actual sample

Grain boundary scattering-induced attenuation and phase-velocity dispersion of Rayleigh-type surface acoustic waves are studied with a time-domain finite- ...

Numerical modeling of surface elastic wave scattering ... - IEEE Xplore

Grain-boundary scattering of acoustic waves in polycrystalline materials is studied with analytical and numerical methods in the presented paper.

Efficient boundary integral solution for acoustic wave scattering by ...

1. Introduction. The calculation of acoustic scattering by extended rough surfaces remains a challenging problem both theoretically and computationally (e.g. [1] ...

Acoustic Scattering Models from Rough Surfaces: A Brief Review ...

The scattering of waves by rough boundaries, or boundary roughness scattering for short, is an area of long-standing interest in a wide range of ...

Acoustic Scattering Models from Rough Surfaces: A Brief Review ...

... surface acoustics waves (SAW) as Rayleigh waves neither head waves. ... Efficient boundary integral solution for acoustic wave scattering by irregular surfaces.

Scattering of obliquely incident surface acoustic waves at the ...

A method of theoretically analyzing the reflection and transmission of obliquely incident acoustic surface waves at the boundary between metallized and free ...

On the Assessment of Acoustic Scattering and Shielding by Time ...

Based on the time domain boundary integral equation formulation of the linear convective wave equation, a computational tool dubbed Time Domain Fast ...

Brillouin light scattering from surface acoustic waves in a ... - Nature

Brillouin spectrum is not simply the signature of a single bulk longitudinal sound wave. In such tiny waveguides, instead, waveguide boundary ...

Scattering of surface acoustic waves by a phononic crystal revealed ...

... scattering into higher diffraction orders depending on the apparent grating pitch at the boundary between the phononic crystal and free surface.

Specularity of a randomly rough surface in the small-perturbation limit

Scattering of normally incident longitudinal and transverse acoustic waves by a randomly rough surface of an elastically isotropic solid is analyzed within the ...

Time-resolved surface acoustic wave propagation across a single ...

... surface acoustic waves propagating across the boundary between... | Find ... Grain boundary scattering-induced attenuation and phase-velocity dispersion ...

Radiation and Scattering of Acoustic Waves from Bodies of Arbitrary ...

This paper is concerned with the application of the Boundary Integral Equation (BIE) method to acoustic radiation and scattering in a three-dimensional.

Dynamically Rough Boundary Scattering Effect on a Propagating ...

... Surface Acoustic Wave and Bulk Acoustic Wave Sensors). Download ... boundary scattering; dynamic roughness; sine wave; pipe flow; pipe acoustics. 1 ...

Energy Losses of Sound Waves in Metals Due to Scattering and ...

2018. Attenuation of Rayleigh-type surface acoustic waves induced by ... Grain-boundary scattering of acoustic waves in polycrystalline materials is ...

ANALYTIC PRECONDITIONERS FOR THE BOUNDARY INTEGRAL ...

This study is devoted to some numerical issues in the boundary integral solution of the scattering of an acoustic wave by an open surface.

Boundary Slip Effect on Acoustic Scattering from a Rigid Cylinder via ...

Acoustic scattering problems have been main topics in the acoustic community. Most previous work assumed that no-slip on the surface of the solid.

Influence of grain morphology on ultrasonic wave attenuation in ...

... scattering mechanism is caused by an acoustic mismatch at the grain boundaries. ... wave types, such as surface acoustic waves. This will allow ...

Scattering of acoustic waves into Tollmien-Schlichting waves by ...

Scattering of acoustic waves into Tollmien-Schlichting waves by small streamwise variations in surface geometry ... sound upon laminar boundary layer ...

Efficient boundary integral solution for acoustic wave scattering by ...

The left-right operator splitting method is studied for the efficient calculation of acoustic fields scattered by arbitrary rough surfaces.