Laser excitation through fiber optics for NDE |
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| Authors: | C P Burger T D Dudderar J A Gilbert B R Peters J A Smith |
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| Affiliation: | (1) Mechanical Engineering Department, Texas A&M University, 77843 College Station, Texas;(2) Bell Laboratories, Murray Hill, 07974, New Jersey;(3) Dept. of Mechanical Engineering, University of Alabama-Huntsville, 35899 Huntsville, Alabama |
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| Abstract: | This paper describes experiments designed to generate acoustic waves by using a laser pulse, transmitted through fiber optics, to thermally shock the surface of a steel specimen. The purpose of this effort was to explore the noncontacting generation of Rayleigh surface waves appropriate to the interrogation of structures for the detection of subcritical defects, with the ultimate goal of developing an efficient laser-based nondestructive evaluation technique utilizing flexible fiber optics. |
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| Keywords: | Ultrasonics fiber optics lasers |
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