Interest in computational methods for calculating wave scattering from fractured geological
clusters is due to their application in processing and interpreting the data obtained during …

Rayleigh waves are well known to attenuate due to scattering when they propagate over a
rough surface. Theoretical investigations have derived analytical expressions linking the …

An FFT-based algorithm is developed to simulate the propagation of elastic waves in
heterogeneous d-dimensional rectangular shape domains. The method allows one to …

This work develops a second-order approximation (SOA) model and a three-dimensional
(3D) finite element (FE) model to calculate scattering-induced attenuation for elastic wave …

In many metallic materials such as Inconel superalloys, the microstructure and grain size
play an important role in their mechanical and physical properties and could impact the …

Industrial inspection protocols are qualified using mock-ups manufactured according to the
same procedure as the plant part. For coarse-grained castings, known for their low …

This work studies scattering-induced elastic wave attenuation and phase velocity variation in
three-dimensional untextured cubic polycrystals with statistically equiaxed grains using the …

Ultrasound backscattering signals from material microstructures can be used to evaluate the
material microstructure grain size. This typically involves making pulse-echo immersion …

The phase velocity dispersion of longitudinal waves in polycrystals with elongated grains of
arbitrary crystallographic symmetry is studied in all frequency ranges by the theoretical …

Grain boundary scattering-induced attenuation and phase-velocity dispersion of Rayleigh-
type surface acoustic waves are studied with a time-domain finite-element method (FEM) …