A Numerical Solution of the Dispersion Equation of Guided Wave Propagation in N-Layered Media

The study of wave propagation through elastic solid media can be used to carry out non-destructive tests (NDT) of structures. These tests can be used to detect and identify, in many cases, both the actual elastic properties and possible geometric imperfections included in the material damage of a structure [SaGa04]. One important application of high-frequency waves is the characterization of composite materials.