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Experimental and theoretical waveforms of Rayleigh waves generated by a thermoelastic laser line source

✍ Scribed by D. Royer; C. Chenu

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 122 KB
Volume: 38
Category: Article
ISSN: 0041-624X
DOI: 10.1016/s0041-624x(00)00022-6

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✦ Synopsis

An analytical model has been developed for the generation of surface acoustic (Rayleigh) waves in an isotropic solid by a thermoelastic laser line source. For a Gaussian light intensity profile, this model leads to an expression in closed form for the normal surface displacement of the Rayleigh wave either in the near field or in the far field domain. Quantitative agreement has been found for experiments carried out with an interferometric optical probe on a duraluminum plate.

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Mixed matrix formulation for the analysi

Mixed matrix formulation for the analysis of laser-generated acoustic waves by a thermoelastic line source

✍ Daniel Royer 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 161 KB

An analytical model has been developed for the generation of bulk and surface acoustic waves at the surface of an isotropic solid by an in®nite thermoelastic laser line source. This model is based on the mixed matrix formulation. It leads to expressions in closed form for the longitudinal and transv