| Titre : | Adhesive elastic contact of rough surfaces with power-law axisymmetric asperities (2012) |
| Auteurs : | Lefeng Wang, Auteur ; Weibin Rong, Auteur ; Bing Shao, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Transactions of the ASME . Journal of tribology (Vol. 134 N° 3, Juillet 2012) |
| Article en page(s) : | 05 p. |
| Note générale : | tribology |
| Langues : | Anglais |
| Index. décimale : | 621.5 (Energie pneumatique. Machinerie et outils. Réfrigération) |
| Tags : | adhesive contact ; surface roughless ; axisymetric asperities ; power-law shape |
| Résumé : | The contact model for rough surfaces with power-law axisymmetric asperities in the presence of adhesion is developed. The extended JKR adhesive contact model for power-law axisymmetric asperities, denoted as JKR-n, developed by Zheng and Yu (2007,“Using the Dugdale Approximation to Match a Specific Interaction in the Adhesive Contact of Elastic Objects,” J. Colloid Interface Sci., 310, pp. 27–34) is utilized to investigate the adhesive contact of rough surfaces. The JKR-n adhesive contact model generalizes the most adopted JKR model for spherical objects of n = 2. This work compares the effect of surface roughness on the adhesion force for rough surfaces with various power-law axisymmetric asperities. It is found that shapes of the asperities influence the pull-off forces greatly during the separation of rough surfaces. A general adhesion parameter that includes the shape index of asperities is proposed, and it can be used to characterize the adhesion performance of rough surfaces. |
| DEWEY : | 621.5 |
| ISSN : | 0742-4787 |
| En ligne : | http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE9000134000003032101000001&idtype=cvips&gifs=Yes&ref=no |
