Extension of Ahmed & Thompson Theory to General Elastic Plane Quasi-Wave Propagation in Textured Polycrystalline Material

In polycrystalline materials, such as columnar grained austenitic weld metal, grain scattering occurs. The extent of the scattering depends on the elastic anisotropy of the grains and the geometric features of the grains and grain boundaries. Therefore these properties have to be incorporated in any theoretical modelling