On the character of acoustic waves at the interface between hard and soft solids and liquids

Autor: Keith A. Nelson, Christ Glorieux, Walter Lauriks, Weimin Gao, Jan Thoen, Kris Van de Rostyne
Rok vydání: 2001
Předmět:
Zdroj: The Journal of the Acoustical Society of America. 110:1299-1306
ISSN: 0001-4966
DOI: 10.1121/1.1396333
Popis: Laser ultrasonics is used to optically excite and detect acoustic waves at the interface between a liquid and a solid or coated solid. Several case studies show that this technique is feasible to investigate experimentally the theoretically predicted fundamental properties of different aspects of interface waves at liquid-solid interfaces and to characterize the elastic properties of soft solids. The theoretical prediction that the leaky Rayleigh (LR)-type root of the characteristic determinant becomes forbidden when the shear velocity of the solid lies below the bulk velocity of the liquid was experimentally confirmed. The depth profiling and nondestructive testing potential of Scholte waves was experimentally illustrated and explained by the properties of the wave displacement profile.
Databáze: OpenAIRE