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@ARTICLE{Nordhorn:153809,
      author       = {Nordhorn, Christian and Mücke, Robert and Vaßen, Robert},
      title        = {{S}imulation of the effect of realistic surface textures on
                      thermally induced topcoat stress fields by two-dimensional
                      interface functions},
      journal      = {Surface and coatings technology},
      volume       = {258},
      issn         = {1944-737X},
      address      = {Amsterdam [u.a.]},
      publisher    = {American Concrete Institute (aci international)},
      reportid     = {FZJ-2014-03289},
      pages        = {181-188},
      year         = {2014},
      abstract     = {The simulation of thermally induced three-dimensional
                      stress fields in multilayer systems with rough
                      interfacesaccording to the distribution of stress levels by
                      two-dimensional modeling approaches is investigated here
                      byperforming a case study on atmospherically plasma-sprayed
                      thermal barrier coating systems. In order to analyzethe
                      microstructure effect, the pronounced interface roughness of
                      these systems is simulated with different
                      approximationfunctions, whose parameters are derived on the
                      basis of measured surface roughness parameters.Finite
                      element analyses of realistic three-dimensional and multiple
                      two-dimensional models were performedensuring that
                      consistent boundary conditions were established in both
                      cases. These analyses yielded stress distributionsas a
                      function of the thickness of a thermally grown oxide layer.
                      In comparison to the reference histogramfor the stress
                      distribution in the three-dimensional model, the analyses of
                      the two-dimensionalapproximation models result in histograms
                      which correctly reflect essential oxide-growth-related
                      featuressuch as stress field inversion and reduction of
                      maximum stress levels. However, these simplifying
                      twodimensionalmodels do not reflect all the details of the
                      stress distributions. The three-dimensional reference
                      isfound to be too complex with respect to the geometric
                      interface features to be replaced by a single
                      twodimensionalapproximating function.},
      cin          = {IEK-1},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {122 - Power Plants (POF2-122)},
      pid          = {G:(DE-HGF)POF2-122},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000346895000022},
      doi          = {10.1016/j.surfcoat.2014.09.032},
      url          = {https://juser.fz-juelich.de/record/153809},
}