It is shown that even small deviations from the ideal Gaussian random roughness case seem to lead to dramatic increase in adhesion of rough surfaces: this could be due to a finite number of asperities, or to a finite tail in the height distribution, particularly realistic at low fractal dimensions D, which is the case of most practical interest. It is emphasized that the assumption of a perfect Gaussian heigth distribution, including infinite tails, may be a strong one when studying adhesion in rough surfaces.
Adhesion between self-affine rough surfaces: Possible large effects in small deviations from the nominally Gaussian case / Ciavarella, M.; Papangelo, A.; Afferrante, L.. - In: TRIBOLOGY INTERNATIONAL. - ISSN 0301-679X. - 109:(2017), pp. 435-440. [10.1016/j.triboint.2017.01.003]
Adhesion between self-affine rough surfaces: Possible large effects in small deviations from the nominally Gaussian case
Ciavarella, M.;Papangelo, A.;Afferrante, L.
2017-01-01
Abstract
It is shown that even small deviations from the ideal Gaussian random roughness case seem to lead to dramatic increase in adhesion of rough surfaces: this could be due to a finite number of asperities, or to a finite tail in the height distribution, particularly realistic at low fractal dimensions D, which is the case of most practical interest. It is emphasized that the assumption of a perfect Gaussian heigth distribution, including infinite tails, may be a strong one when studying adhesion in rough surfaces.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
