The aviation sector faces the continuous challenge of developing efficient engines and lightweight structures. However, reducing structural weight often increases system vibrations, which can affect performance and structural integrity. Frictional joints are commonly employed to mitigate these vibrations, yet their effectiveness strongly depends on the contact conditions at the interface. This motivates the development of experimental techniques for interface characterization and structural health monitoring. Among the existing experimental techniques, solitary waves, i.e., mechanical waves similar to ultrasonic waves that propagate in ordered chains of spheres named granular chains, have shown potential as a tool for detecting physical properties such as thickness and elastic modulus in components.