Finite element modelling of two-way RC slabs with varying modelling choicesShow others and affiliations
2014 (English)In: Proceedings of the 10th fib International PhD Symposium in Civil Engineering, Universite Laval , 2014, p. 589-594Conference paper, Published paper (Refereed)
Abstract [en]
Non-linear finite-element (FE) methodis today commonly used to simulate the behavior of reinforced concrete structures. The study presentedin this paper comprises non-linear FE analyses of the behavior of two-way RC slabs and a comparison with experimental results. In the analyses, the concrete in compression was described by an isotropic damage constitutive law. In tension, a total strain model with rotating crack was adopted. The reinforcement was described by a Von Mises plasticity model, including hardening. The load-displacement relationship, and crack pattern of the two-way slabs under a concentrated load were compared to experimental results. The influence of some modelling choices, such as element type, mesh density, and reinforcement-concrete interaction were investigated. Analyses with varying mesh size resultedin very small difference in the results. The analysis including bond-slip gave lower stiffness at the cracking stage, and displayed more localized cracks compared to the analysis with full interaction, while both had the same ultimate load capacity.
Place, publisher, year, edition, pages
Universite Laval , 2014. p. 589-594
Keywords [en]
Concretes, Cracks, Mesh generation, Reinforced concrete, Concentrated load, Finite element modelling, Load displacements, Localized cracks, Non-linear finite elements, Reinforcement concrete, Ultimate load capacity, Von-Mises plasticity, Finite element method
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:ri:diva-46956Scopus ID: 2-s2.0-84992468899ISBN: 9782980676215 (print)OAI: oai:DiVA.org:ri-46956DiVA, id: diva2:1461179
Conference
10th International Federation for Structural Concrete (fib) International PhD Symposium in Civil Engineering 2014, 21 July 2014 through 23 July 2014
2020-08-262020-08-262020-12-01Bibliographically approved