Beschreibung:
<jats:p>A wave composed of weak and short waves (WS waves) in a dynamically deformed elastic material is studied theoretically by using quasigeometrical acoustics. The material considered is one dimensional and inhomogeneous with a nonlinear stress–strain relation. A general theory for analyzing the composite wave is exploited. It is shown to the second-order approximation that the analysis of the composite wave can essentially be reduced to the analysis of a single WS wave. As an example of the general theory, a head-on collision between two WS waves is investigated.</jats:p>