Simulation of Elastic Wave Propagation in Anisotropic and Inhomogeneous Polycrystalline Materials Including Scattering Effects


A polycrystalline material is composed of discrete grains. The elastic properties of the grains are anisotropic and their crystallographic axes may be randomly or non-randomly oriented. In many industrial applications the ultrasonic inspection of such structures suffers from the anisotropy and/or the microscopic inhomogeneous arrangement of the grains on one side and from the scattering of the ultrasonic waves at the grain boundaries on the other side.




Dr. Martin Spies (Fraunhofer IZFP, Komponenten und Bauteilprüfung, Universität Saarbrücken)