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@ARTICLE{Persson:201812,
      author       = {Persson, Bo and Prodanov, N. and Krick, B. A. and
                      Rodriguez, N. and Mulakaluri, N. and Sawyer, W. G. and
                      Mangiagalli, P.},
      title        = {{E}lastic contact mechanics: {P}ercolation of the contact
                      area and fluid squeeze-out},
      journal      = {The European physical journal / E},
      volume       = {35},
      number       = {1},
      issn         = {1292-895X},
      address      = {Berlin},
      publisher    = {Springer},
      reportid     = {FZJ-2015-04106},
      pages        = {5},
      year         = {2012},
      abstract     = {The dynamics of fluid flow at the interface between elastic
                      solids with rough surfaces depends sensitively on the area
                      of real contact, in particular close to the percolation
                      threshold, where an irregular network of narrow flow
                      channels prevails. In this paper, numerical simulation and
                      experimental results for the contact between elastic solids
                      with isotropic and anisotropic surface roughness are
                      compared with the predictions of a theory based on the
                      Persson contact mechanics theory and the Bruggeman effective
                      medium theory. The theory predictions are in good agreement
                      with the experimental and numerical simulation results and
                      the (small) deviation can be understood as a finite-size
                      effect. The fluid squeeze-out at the interface between
                      elastic solids with randomly rough surfaces is studied. We
                      present results for such high contact pressures that the
                      area of real contact percolates, giving rise to sealed-off
                      domains with pressurized fluid at the interface. The
                      theoretical predictions are compared to experimental data
                      for a simple model system (a rubber block squeezed against a
                      flat glass plate), and for prefilled syringes, where the
                      rubber plunger stopper is lubricated by a high-viscosity
                      silicon oil to ensure functionality of the delivery device.
                      For the latter system we compare the breakloose (or static)
                      friction, as a function of the time of stationary contact,
                      to the theory prediction.},
      cin          = {IAS-1 / PGI-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106},
      pnm          = {424 - Exploratory materials and phenomena (POF2-424)},
      pid          = {G:(DE-HGF)POF2-424},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000300556600005},
      doi          = {10.1140/epje/i2012-12005-2},
      url          = {https://juser.fz-juelich.de/record/201812},
}