Langenberg, Karl-Jörg; Marklein, René; Mayer, Klaus

"... absolutely a must for every scientist who would like to further evaluate theoretically ultrasonic NDT. The studies described by Langenberg et al. have very strongly enhanced the interpretation of propagation of elastic waves also in anisotropic and inhomogeneous media we have in practice, for instance, in welds of austenitic stainless steels or dissimilar metal (Ni-alloys) welds in the nuclear and chemical industries."-- Gerd Dobmann, Fraunhofer-IZFP, Saarbrücken, Germany

• Contents. Mathematical Foundations. Governing Equations of Elastodynamics. Constitutive Equations; Governing Equations; Elastodynamic Energy Conservation. Acoustics. Electromagnetism. Vector Wave Equations. Elastic Plane Waves in Homogeneous Materials. Reflection, Transmission and Mode Conversion of Elastic Plane Waves at Planar Boundaries between Homogeneous Non-Dissipative Materials. Rayleigh Surface Waves. Plane Wave Spatial Spectrum. Ultrasonic Beams and Wave Packets. Point Sources in Homogeneous Isotropic Infinite Space; Elastodynamic Source Fields. Force Density and Dilatation Rate Sources on Surfaces of Homogeneous Isotropic Half-Spaces; Radiation Fields of Piezoelectric Transducers. Scatterers in Homogeneous Isotropic Non-Dissipative Infinite Spaces. Inverse Scattering: US-NDT Imaging.