No Access The Journal of the Acoustical Society of America 153, 2049 (2023); https://doi.org/10.1121/10.0017784 Guided ultrasonic waves provide a promising structural health monitoring (SHM) solution for composite structures as they are able to propagate relatively long distances with low attenuation. However, the material anisotropy results in directionally dependent phase and group velocities, in addition to energy focusing, wave skewing, and beam spreading phenomena.
