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@ARTICLE{Tiwari:867964,
      author       = {Tiwari, Avinash and Wang, Anle and Müser, Martin H. and
                      Persson, Bo},
      title        = {{C}ontact {M}echanics for {S}olids with {R}andomly {R}ough
                      {S}urfaces and {P}lasticity},
      journal      = {Lubricants},
      volume       = {7},
      number       = {10},
      issn         = {2075-4442},
      address      = {Basel},
      publisher    = {MDPI},
      reportid     = {FZJ-2019-06557},
      pages        = {90},
      year         = {2019},
      abstract     = {We present experimental results for the elastic and plastic
                      deformation of sandblasted polymer balls resulting from
                      contacts with flat smooth steel and silica glass surfaces.
                      Nearly symmetric, Gaussian-like height probability
                      distributions were observed experimentally before and
                      remarkably, also after the polymer balls were deformed
                      plastically. For all the polymers studied we find that the
                      surface roughness power spectra for large wavenumbers (short
                      length scales) are nearly unchanged after squeezing the
                      polymer balls against flat surfaces. We attribute this to
                      non-uniform plastic flow processes at the micrometer length
                      scale. The experimental data are analyzed using the Persson
                      contact mechanics theory with plasticity and with
                      finite-element method (FEM) calculations},
      cin          = {IAS-1 / PGI-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106},
      pnm          = {141 - Controlling Electron Charge-Based Phenomena
                      (POF3-141)},
      pid          = {G:(DE-HGF)POF3-141},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000494477000009},
      doi          = {10.3390/lubricants7100090},
      url          = {https://juser.fz-juelich.de/record/867964},
}