Reflection and Transmission of Waves from an Interface with a Phase-Transforming Solid

This paper is concerned with waves in a composite elastic bar, the left half of which is composed of a linearly elastic material, while the nonlinearly elastic material of the right half can undergo a phase transition. We assume that a wave in the left portion of the bar is incident upon the interface between the two materials, and we investigate the question of whether the phase transition can be exploited to augment or diminish the strength of the reflected or transmitted wave.