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Artigo Produção Nacional Revisado por pares
BIBTEX RIS

Hurst exponent analysis of moving metallic surfaces

2013; Elsevier BV; Volume: 392; Issue: 21 Linguagem: Inglês

10.1016/j.physa.2013.07.005

ISSN

1873-2119

Autores

Hellen Cassia Alves Soares, Ladário da Silva, Diomar Cesar Lobão, D. P. Caetano, J. A. O. Huguenin,

Tópico(s)

Adhesion, Friction, and Surface Interactions

Resumo

We report on the application of Hurst exponent analysis to digital speckle patterns for investigating moving rough surfaces in the presence of defects. Digital speckle patterns were generated by recording the scattered light from moving surfaces illuminated by a laser beam. It was found that it is possible to identify the presence of the defects by means of the variation of the Hurst exponent along the sample.

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