Rok 2022

• Examination of advanced isotropic constitutive laws under complex stress states in plain and reinforced concrete specimens

  Publikacja

  • J. Bobiński
  • P. Chodkowski
  • J. Schönnagel

  - Rok 2022

  The performance of advanced isotropic constitutive laws under complex stress states in plain and reinforced concrete specimens is investigated. Three different formulations are chosen: original Mazars model, Mazars mi model and model proposed by Pereira and coworkers. The degradation of the material in all formulations is described via a single variable, but a strain/stress state is taken into account via quite sophisticated relationships....

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• Limits of enhanced of macro- and meso-scale continuum models for studying size effect in concrete under tension

  Publikacja

  • P. Chodkowski
  • J. Bobiński
  • J. Tejchman

  - European Journal of Environmental and Civil Engineering - Rok 2022

  The paper investigates a mechanical quasi-static size effect in concrete during splitting tension at the macro- and meso-level. In experiments, five different diameters of cylindrical concrete specimens were tested. Twodimensional plane strain finite element (FE) simulations were carried out to reproduce the experimental size effect. The size effect in experiments by Carmona et al. was also simulated. Two enhanced continuum concrete...

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