Characterization of mechanical and geometrical properties of a tube with axial and circumferential guided waves

► Axial and circumferential guided waves are applied for material characterization. ► Theoretical model, laser ultrasound measurements and inversion are employed. ► Dispersion of circumferential guided waves are sensitive to the tube curvature. ► Dispersion of circumferential guided waves can extract the curvature information. ► Both types of guided waves can extract elastic modulus and thickness information.