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[117990] Rozdział: Numerical reproduction of three plain concrete testsw książce: Computational Modelling of Concrete and Concrete StructuresISBN: 9781003316404 Wydawca: CRC Press / Balkema Opublikowano: Maj 2022 Miejsce wydania: London Liczba stron: 10 Liczba arkuszy wydawniczych: 0.50 Autorzy / Redaktorzy / Twórcy Grupa MNiSW: Autorstwo rozdziału w monografii z listy wydawnictw 2019 Punkty MNiSW: 20 Pełny tekst DOI |
There are many material models dedicated to concrete, but they have their limitations and drawbacks and FEM software users should be aware of them. The models would give very similar results for simple loading tests, e.g. uniaxial tension, but they can produce completely different results for the mixed-mode fracture. The authors of this paper have chosen the following tests (at the structural level): Nooru-Mohamed test, Schlangen test and L-specimen test under quasi-static loads. The tests are performed with two concrete models implemented in the Abaqus software: Concrete Damaged Plasticity (CDP) and Concrete Smeared Cracking (CSC). Results of the tests allow to compare the behavior of both models in the mode-I and mode-II of crack growth. Additionally some important practical issues concerning the FEM modeling are analyzed in the paper: influence of a type of a FEM mesh – structural vs. random and influence of a finite element type – 4-node vs. 3-node.