The Stroh formalism for acoustic waves in 1D-inhomogeneous media: unified background and some applications

TL;DR

This paper reviews the Stroh formalism for acoustic wave analysis in one-dimensional inhomogeneous media, highlighting its development, core concepts, and diverse applications over the past 25 years.

Contribution

It consolidates the fundamental aspects of the Stroh formalism and traces the evolution of the impedance matrix concept in acoustic problems.

Findings

Comprehensive overview of the Stroh formalism

Historical development of impedance matrix methods

Applications in various acoustic problems

Abstract

The aim of the review is to consolidate the core aspects of the Stroh formalism, trace the development of the impedance matrix concept, and outline the range of acoustic problems that have been treated by these methods over the last two and a half decades.