Propagation of Acoustic Waves in Solids
摘要
In this chapter, we aim to discuss the propagation of sound waves in solids, clarifying the dynamical difference in elastic behaviors between air and solids. After briefly reviewing the theory of elasticity, we derive the equation of motion for isotropic solid media. We derive the wave equations and discuss the propagation of acoustic waves in solids under various boundary conditions. The discussions include some nonlinear waves, such as surface waves.