Adhesive friction based on finite element study and n-point asperity model

[摘要] The present work considers analysis of adhesive friction of rough surfaces using n- point asperity concept for statistical definition of surface roughness features, and accurate finite element analysis of elastic-plastic deformation of single asperity contact. Well defined adhesion index and plasticity index are used to study the prospective contact situations arising out of variation in material properties and surface roughness features. From the present results it is possible to locate the combinations of adhesion index and plasticity index that may yield very low coefficient of friction. Thus suitable choice of surface and material parameters for the contact of two rough surfaces can be made in order to minimize friction typically at low load and micro scale roughness situations.

[发布机构] Department of Mechanical Engineering, Jadavpur University, Kolkata, India^1

[效力级别] 数学

[关键词] Adhesive friction;Asperity model;Elastic-plastic deformation;Finite-element study;Low coefficient of friction;Material parameter;Plasticity indices;Single asperity