Abstract
This paper presents a study on the adhesive contact of a rigid sphere with an elastic perfectly plastic half-space. Analytical solutions for contact force and contact radius relation, contact force and contact displacement relation during both loading and unloading are derived. From the present solutions the plastic pull-off force can be calculated analytically. The present study shows that the plastic pull-off force calculated with considering the variation of curvature within the contacted surface is higher than that calculated based on a constant curvature taken at the contact centre, and specially if the contact radius is calculated based on the Hertzian solution for elastic contacts then the obtained plastic pull-off force will be less than a half of the present plastic pull-off force. (C) 2010 Elsevier B.V. All rights reserved.
| Original language | English |
|---|---|
| Pages (from-to) | 848-853 |
| Number of pages | 6 |
| Journal | Computational Materials Science |
| Volume | 48 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Jun 2010 |
Keywords
- Loading and unloading
- Contact mechanics
- Adhesive contact
- Plastic pull-off force
- Elastic-plastic material