n-Point Asperity Model for Contact Between Nominally Flat Surfaces

@inproceedings{Hariri2006nPointAM,
  title={n-Point Asperity Model for Contact Between Nominally Flat Surfaces},
  author={Alireza Hariri and Jean W. Zu and Ridha Ben Mrad},
  year={2006}
}
For several decades, asperities of nominally flat rough surfaces were considered to be points higher than their immediate neighbors. Recently, it has been recognized that this model is incorrect. To address the issue, a new multiple-point asperity model, called the n-point asperity model, is introduced in this paper. In the new model, asperities are composed of n neighboring sampled points with n-2 middle points being above a certain level. When the separation between two surfaces decreases… CONTINUE READING