Experimental study of the roughness of crumpled surfaces
✍ Scribed by Franck Plouraboué; Stéphane Roux
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 817 KB
- Volume
- 227
- Category
- Article
- ISSN
- 0378-4371
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✦ Synopsis
We report on the experimental study of the roughness of randomly crumpled surfaces which are unfolded. This system provides a natural example of random surfaces which exhibit long-range correlations. It is shown that such rough surfaces are self-affine with a Hurst exponent H ~ 0.9. A simple one-dimensional model illustrates the way long-range correlations may naturally occur in the crumpling process.
📜 SIMILAR VOLUMES
For several years, studies carried out in Europe have shown the need to consider wheel and rail surface roughness as a major excitation parameter in railway rolling noise. Measuring the rail roughness may be critical in the assessment of the noise created by the wheel/track system. It can be measure