Modelling Ultrasound Wave Propagation in Anisotropic and Inhomogeneous Materials.

In nondestructive testing ultrasound
waves are an important tool for
inspection of voids and faults in
materials. The method is well
established for isotropic and
homogeneous materials whereas cases with
anisotropy and inhomogeneity lead to
difficulties in the design of inspection
procedures and interpretations of
inspection results. The difficulties
arise from redirection and/or bending
of the sound wave propagation in an
unknown manner. In order to investigate
the influence of anisotropy and inhomogeneity on the sound wave
propagation we have implemented the
elastic wave equations using Elasto
Dynamics Finite Integration Technique
(EFIT).