In reality we deal with finite plates, or plates wrapped into cylindrical pipes or vessels, or plates cut into thin strips, etc . Lamb wave theory often gives a very good account of much of the wave behavior of such structures.
22.
Although the lamb wave pioneers worked on nondestructive testing applications and drew attention to the theory, widespread use did not come about until the 1990s when computer programs for calculating dispersion curves and relating them to experimentally observable signals became much more widely available.
23.
Using the assumption that the cross-shore velocity " v " is zero at the coast, " v " = 0, one may solve a frequency relation for the phase speed of coastal Kelvin waves, which are among the class of waves called boundary waves, edge waves, trapped waves, or surface waves ( similar to the Lamb waves ).
