Contact pressure between two rough surfaces of a cylindrical fit

Abstract Contact pressure, an important parameter for analysing and evaluating the contact behaviour, is always an interesting subject. The greater part of studies and results concentrates upon the contact, friction, wear, tear and lubrication for the cases of the rough contact. The tight fit is a current process of assembly for transmitting a force or a torque between a shaft and a hub with the help of friction effects. Contact surfaces play an important role in accounting for their capacities. The standards are based on the thick cylinder theory and does not take into account the surface textures and the asperity behaviour, although it is quite normal and useful to have rough surfaces, one is obliged to specify the very smooth contact surfaces. One obvious factor is that the smoother the surface is, the higher the manufacturing cost is. Moreover, having smooth surfaces does not result in a large friction coefficient. This paper, based on different precedent studies on roughness contact, bears, in mind on speciality of the tight fit problem, the distribution, the evolution of pressure, the plastic deformation of asperity and its influence on the pressure, in the objective to build a new method for computing the tight fitting pressure in a cylindrical tight fit [Influence de l’etat de surface sur les caracteristiques d’un assemblage frette, These de l’ENSAM, France, 1998].

[1]  K J Stout,et al.  Development of methods for the characterisation of roughness in three dimensions , 2000 .

[2]  T. H. C. Childs.  The persistence of roughness between surfaces in static contact , 1977, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[3]  John I. McCool,et al.  Comparison of models for the contact of rough surfaces , 1986 .

[4]  B. Jaoul,et al.  Étude de la plasticité et application aux metaux , 1965 .

[5]  N. Bay,et al.  Real area of contact and friction stress at high pressure sliding contact , 1976 .

[6]  Gong Ming Yang.  Etude de l'influence de l'etat de surface sur les caracteristiques d'un emmanchement frette , 1998 .

[7]  B. Bhushan,et al.  Fractal Model of Elastic-Plastic Contact Between Rough Surfaces , 1991 .

[8]  A. Moore,et al.  Deformation of metals in static and in sliding contact , 1948, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[9]  Jean-François Fontaine,et al.  Influence of roughness on characteristics of tight interference fit of a shaft and a hub , 2001 .

[10]  A. Makinouchi,et al.  Effect of lateral tension and compression on plane strain flattening processes of surface asperities lying over a plastically deformable bulk , 1990 .

[11]  R. S. Sayles,et al.  Effect of Roughness and Sliding Friction on Contact Stresses , 1991 .

[12]  Niels Bay,et al.  A theoretically determined model for friction in metal working processes , 1974 .

[13]  Richard Timothy Hunt,et al.  Asperity persistence and the real area of contact between rough surfaces , 1972, Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences.

[14]  Mpf Sutcliffe,et al.  Surface asperity deformation in metal forming processes , 1988 .