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@ARTICLE{Poulos:255636,
      author       = {Poulos, Andreas-Stavros and Renou, Frédéric and Jacob,
                      Alan R. and Koumakis, Nick and Petekidis, George},
      title        = {{L}arge amplitude oscillatory shear ({LAOS}) in model
                      colloidal suspensions and glasses: frequency dependence},
      journal      = {Rheologica acta},
      volume       = {54},
      number       = {8},
      issn         = {1435-1528},
      address      = {Berlin},
      publisher    = {Springer},
      reportid     = {FZJ-2015-05771},
      pages        = {715 - 724},
      year         = {2015},
      abstract     = {We investigate the effect of frequency on the non-linear
                      large amplitude oscillatory shear (LAOS) response of
                      concentrated colloidal suspensions of model soft and hard
                      spheres at various concentrations, both below and above the
                      glass transition. We show that the anharmonic response in
                      the stress increases with frequency for liquid-like samples
                      but decreases with frequency for solid-like samples. We
                      argue that for samples below the glass transition, higher
                      frequencies involving higher maximum shear rates promote
                      shear thinning and increase anharmonicity. On the other
                      hand, solid-like samples deform plastically at low
                      frequencies as they are subjected to low shear rates within
                      the period. Higher frequencies (higher average shear rates)
                      lead to viscous flow over a larger fraction of the period
                      thereby decreasing anharmonic behavior. We also demonstrate
                      that LAOS experiments in strain-controlled rheometry at
                      moderately high frequencies (ω > 5 rad/s) have to be
                      very carefully interpreted, due to the superharmonic
                      instrumental resonance effects.},
      cin          = {IFF-5 / Neutronenstreuung ; JCNS-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB785 / I:(DE-Juel1)JCNS-1-20110106},
      pnm          = {551 - Functional Macromolecules and Complexes (POF3-551) /
                      6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
                      / 6215 - Soft Matter, Health and Life Sciences (POF3-621)},
      pid          = {G:(DE-HGF)POF3-551 / G:(DE-HGF)POF3-6G4 /
                      G:(DE-HGF)POF3-6215},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000358605000005},
      doi          = {10.1007/s00397-015-0865-8},
      url          = {https://juser.fz-juelich.de/record/255636},
}