Dispersive properties of cylindrical Rayleigh waves

Xianmei Wu, C.Y.; Menglu Qian, C.Y.; Cantrell, John H.
November 2003
Applied Physics Letters;11/10/2003, Vol. 83 Issue 19, p4053
Academic Journal
An analytical model of cylindrical Rayleigh waves generated by a laser source is developed that predicts a previously unknown maximum in the Rayleigh wave velocity. The maximum value C[sub R max] of the cylindrical Rayleigh wave velocity C[sub R] occurs at a critical small value of ωR/C[sub R] where ω is the angular frequency and R is the radius of the cylinder. C[sub R max] is smaller in magnitude than the longitudinal velocity but larger than the shear velocity in the material. Experimental data, generated by a cylindrically focused laser source, confirm the theoretical predictions for aluminum cylinders. © 2003 American Institute of Physics.


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