| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 735898 | Optics and Lasers in Engineering | 2009 | 5 Pages |
Abstract
An optical setup based on speckle-contrast measurement is proposed as an alternative to analyze fatigue damage on surfaces of metal samples. Based on the dispersion of the light, generated by a laser beam reflected by the surface, roughness and fatigue damage are analyzed after a specially designed fatigue test of metallic samples. The experimental results are obtained from an aluminum alloy type A319 modified with strontium with nodular silicon precipitates that was subjected to a fatigue procedure based in the norm ASTM E647.
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Authors
A. Dávila, G. Garnica, J.A. López, F.J. Carrión,