N.S.Gorodetskaya Diffraction of the Rayleigh-Lamb waves on the interface of two joined elastic halfstrips of different widths |
Acoustic bulletin, Vol. 3 ¹ 3, (2000) |
| On basis of method of superposition a diffraction of the Rayleigh-Lamb wave on a vertical boundary of waveguide formed by a strong contact of two halfstrips is calculated for case of their different widths and different elastic properties. It is shown that decrease of width of a halfstrip, in which the incident wave propagates, results in a qualitative change in energy redistribution of the incident wave between the reflected and transmitted fields. These changes are caused by significant distinctions in a degree of excitation of evanescent waves in both halfstrips at change of their width ratio. |
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KEY WORDS: composite waveguide, the elastic halfstrip, diffraction, the Rayleigh-Lamb wave |
| TEXT LANGUAGE: Russian |