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@ARTICLE{Persson:2775,
      author       = {Persson, B. N. J. and Sivebaek, I. M. and Samoilov, V. N.
                      and Zhao, K. and Volokitin, A. I. and Zhang, Z.},
      title        = {{O}n the origin of {A}monton's friction law},
      journal      = {Journal of physics / Condensed matter},
      volume       = {20},
      issn         = {0953-8984},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {PreJuSER-2775},
      pages        = {395006},
      year         = {2008},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {Amonton's law states that the sliding friction force
                      increases linearly with the load. We show that this result
                      is expected for stiff enough solids, even when the
                      adhesional interaction between the solids is included in the
                      analysis. As a function of the magnitude of the elastic
                      modulus E, one can distinguish between three regions: (a)
                      for E > E-2, the area of real contact (and the friction
                      force) depends linearly on the load, (b) for E-1 < E < E-2,
                      the area of real contact depends nonlinearly on the load but
                      vanishes for zero load, and (c) for E < E-1 the area of real
                      contact depends nonlinearly on the load and is non-vanishing
                      at zero load. In this last case a finite pull-off force is
                      necessary in order to separate the solids. Based on
                      molecular dynamics calculations, we also discuss the
                      pressure dependence of the frictional shear stress for
                      polymers. We show that the frictional shear stress is
                      independent of the normal pressure p(0) as long as p(0) is
                      much smaller than the adhesional pressure p(ad), which
                      depends on the atomic corrugation of the solid surfaces in
                      the sliding interface. Finally, we discuss the origin of why
                      the contact area between a soft elastic solid (e. g. rubber)
                      and a flat substrate decreases from the JKR (adhesive
                      contact) limit at zero or small sliding velocities, to the
                      Hertz (non-adhesive) limit at high sliding velocities.},
      keywords     = {J (WoSType)},
      cin          = {IFF-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB781},
      pnm          = {Kondensierte Materie},
      pid          = {G:(DE-Juel1)FUEK414},
      shelfmark    = {Physics, Condensed Matter},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000259034200007},
      doi          = {10.1088/0953-8984/20/39/395006},
      url          = {https://juser.fz-juelich.de/record/2775},
}