scholarly journals A new efficient numerical method for contact mechanics of rough surfaces

2012 ◽  
Vol 49 (2) ◽  
pp. 338-343 ◽  
Author(s):  
C. Putignano ◽  
L. Afferrante ◽  
G. Carbone ◽  
G. Demelio
Keyword(s):  
Numerical Method ◽  
Contact Mechanics ◽  
Rough Surfaces

Numerical Method of Analyzing Contact Mechanics between a Sphere and a Flat Considering Lennard-Jones Surface Forces of Contacting Asperities and Noncontacting Rough Surfaces

2012 ◽  
Vol 134 (1) ◽  
Author(s):  
Kyosuke Ono
Keyword(s):  
Numerical Method ◽  
Contact Mechanics ◽  
Rough Surfaces ◽  
Present Theory ◽  
Adhesive Contact ◽  
Adhesive Force ◽  
Surface Forces ◽  
Contact Theory ◽  
Magnetic Disk ◽  
Lennard Jones

A new numerical method of analyzing adhesive contact mechanics between a sphere and a flat with sub-nanometer roughness is presented. In contrast to conventional theories, the elastic deformations of mean height surfaces and contacting asperities, and Lennard-Jones (LJ) surface forces of both the contacting asperities and noncontacting rough surfaces including valley areas are taken into account. Calculated contact characteristics of a 2-mm-radius glass slider contacting a magnetic disk with a relatively rough surface and a 30-mm-radius head slider contacting a currently available magnetic disk with lower roughness are shown in comparison with conventional adhesive contact theories. The present theory was found to give a larger adhesive force than the conventional theories and to converge to a smooth sphere-flat contact theory as the roughness height approaches zero.

scholarly journals A multi-scale FEM-BEM formulation for contact mechanics between rough surfaces

2019 ◽  
Vol 65 (3) ◽  
pp. 731-749
Author(s):  
Jacopo Bonari ◽  
Maria R. Marulli ◽  
Nora Hagmeyer ◽  
Matthias Mayr ◽  
Alexander Popp ◽  
...  
Keyword(s):  
Contact Mechanics ◽  
Rough Surfaces ◽  
Multi Scale
Sign in / Sign up

Export Citation Format

Share Document