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

scholarly journals Contact Mechanics of Rough Surfaces in Hermetic Sealing Studies

2018 ◽  
Author(s):  
Peter Ogar ◽  
Sergey Belokobylsky ◽  
Denis Gorokhov
Keyword(s):  
Contact Mechanics ◽  
Rough Surfaces ◽  
Hermetic Sealing

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.

Parametric Study of Simulated Randomly Rough Surfaces Used in Contact Mechanics

2019 ◽  
pp. 162-168
Author(s):  
Rafael Schouwenaars ◽  
Miguel Ángel Ramírez ◽  
Carlos Gabriel Figueroa ◽  
Víctor Hugo Jacobo ◽  
Armando Ortiz Prado
Keyword(s):  
Contact Mechanics ◽  
Parametric Study ◽  
Rough Surfaces ◽  
Randomly Rough Surfaces

Effect of Surface Roughness on Adhesion and Friction of Microfibers in Side Contact

2008 ◽  
Author(s):  
Mircea Teodorescu ◽  
Carmel Majidi ◽  
Homer Rahnejat ◽  
Ronald S. Fearing
Keyword(s):  
Mathematical Model ◽  
Surface Roughness ◽  
Closed Form ◽  
Contact Mechanics ◽  
Elastic Contact ◽  
Linear Elastic ◽  
Multi Scale ◽  
Analytic Approximations ◽  
Effect Of Surface

A multi-scale mathematical model is used to study the effect of surface roughness on the adhesion and friction of microfibers engaged in side contact. Results are compared to closed-form analytic approximations derived from linear elastic contact mechanics.

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