Self-Affine Elastic Contacts: Percolation and Leakage

Autor:	Dapp, Wolf B., Lücke, Andreas, Persson, Bo N. J., Müser, Martin H.
Rok vydání:	2013
Předmět:	Condensed Matter - Soft Condensed Matter Condensed Matter - Other Condensed Matter
Zdroj:	Phys. Rev. Lett. 108, 244301 (2012)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.108.244301
Popis:	We study fluid flow at the interfaces between elastic solids with randomly rough, self-affine surfaces. We show by numerical simulation that elastic deformation lowers the relative contact area at which contact patches percolate in comparison to traditional approaches to seals. Elastic deformation also suppresses leakage through contacts even far away from the percolation threshold. Reliable estimates for leakage can be obtained by combining Persson's contact mechanics theory with a slightly modified version of Bruggeman's effective-medium solution of the Reynolds equation. Comment: 4 pages, 3 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1308.3449 Zobrazit plný text záznamu View this record from Arxiv