contact mechanics of rough spheres: crossover from fractal to hertzian behavior
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ID: 129825
2013
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Abstract
We investigate the normal contact stiffness in a contact of a rough sphere with an elastic half-space using 3D boundary element calculations. For small normal forces, it is found that the stiffness behaves according to the law of Pohrt/Popov for nominally flat self-affine surfaces, while for higher normal forces, there is a transition to Hertzian behavior. A new analytical model is derived describing the contact behavior at any force.
| Reference Key |
pohrt2013advancescontact
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|---|---|
| Authors | ;Roman Pohrt;Valentin L. Popov |
| Journal | proceedings |
| Year | 2013 |
| DOI |
10.1155/2013/974178
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| URL | |
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