Elastic wave propagation in polycrystalline materials at different texture intensities

Abstract

A 3-dimensional (3D) voxel-based synthetic Polycrystalline Volume Element (PVE) is generated at various texture intensities; subsequently, the structural-mechanics module of a commercially available finite element (FE) solver is used to simulate elastic wave propagation through the PVE. Keeping the grain size distribution unchanged, two extreme behaviour of wave velocities have been achieved at two texture condition(s), namely Cube texture {001}⟨100⟩ and Copper texture {112}⟨111⟩, where Cube texture corresponds to most compliance; in contrast to, Copper texture which corresponds to the stiffest direction of the crystals in the PVE. Results also show a significant suppression of wave dispersion with an increment in texture intensity.