Influence of laser beam profile on the generation of ultrasonic waves |
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Authors: | D Cerniglia A Pantano and C Mineo |
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Institution: | (1) G.W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, 813 Ferst Drive NW, Atlanta, GA 30332-0405, USA; |
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Abstract: | The different ultrasonic fields generated in metallic materials by a laser beam with flat and Gaussian profile are investigated
experimentally and using the finite element method (FEM). A high power laser beam irradiating a solid surface produces elastic
waves with a mechanics that depends on many parameters, including the profile of the laser beam. The influence of the beam
profile is investigated with the FEM analysis, considering the temperature dependence of material properties. |
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Keywords: | |
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