Static Friction between Elastic Solids due to Random Asperities
Abstract
Several workers have established that the Larkin domains for two three-dimensional nonmetallic elastic solids in contact with each other at a disordered but atomically flat interface are enormously large, implying that there should be negligible static friction per unit area in the macroscopic solid limit. In contrast, the present Letter argues that when the Larkin domains are calculated for disorder on the multiasperity scale, they are much smaller than the interface size. This can account for the virtual universal occurrence of static friction.
- Publication:
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Physical Review Letters
- Pub Date:
- April 2001
- DOI:
- 10.1103/PhysRevLett.86.3312
- arXiv:
- arXiv:cond-mat/0006209
- Bibcode:
- 2001PhRvL..86.3312S
- Keywords:
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- Condensed Matter - Materials Science
- E-Print:
- Contains some improvements in the treatment of the subject