Finite element modelling of plain and reinforced concrete specimens with the Kotsovos and Pavlovic material model, smeared crack approach and fine meshes

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dc.contributor.author Markou, George
dc.contributor.author Roeloffze, Wynand
dc.date.accessioned 2021-06-17T11:54:03Z
dc.date.available 2021-06-17T11:54:03Z
dc.date.issued 2021-06
dc.description.abstract Modelling of concrete through 3 D constitutive material models is a challenging subject due to the numerous nonlinearities that occur during the monotonic and cyclic analysis of reinforced concrete structures. Additionally, the ultimate limit state modelling of plain concrete can lead to numerical instabilities given the lack of steel rebars that usually provide with the required tensile strength inducing numerical stability that is required during the nonlinear solution procedure. One of the commonly used 3 D concrete material models is that of the Kotsovos and Pavlovic, which until recently it was believed that when integrated with the smeared crack approach, it can only be used in combination with relatively larger in size finite elements. The objective of this study is to investigate into this misconception by developing different numerical models that foresee the use of fine meshes to simulate plain concrete and reinforced concrete specimens. For the needs of this research work, additional experiments were performed on cylindrical high strength concrete specimens that were used for additional validation purposes, whereas results on a reinforced concrete beam found in the international literature were used as well. A discussion on the numerical findings will be presented herein by comparing the different experimental data with the numerically predicted mechanical response of the under study concrete material model. en_ZA
dc.description.department Civil Engineering en_ZA
dc.description.librarian hj2021 en_ZA
dc.description.uri https://journals.sagepub.com/home/ijd en_ZA
dc.identifier.citation Markou, G. and Roeloffze, W. (2021) ‘Finite element modelling of plain and reinforced concrete specimens with the Kotsovos and Pavlovic material model, smeared crack approach and fine meshes’, International Journal of Damage Mechanics. 2021;30(6):845-871. doi:10.1177/1056789520986601. en_ZA
dc.identifier.issn 1056-7895 (print)
dc.identifier.issn 1530-7921 (online)
dc.identifier.other 10.1177/1056789520986601
dc.identifier.uri http://hdl.handle.net/2263/80352
dc.language.iso en en_ZA
dc.publisher Sage en_ZA
dc.rights © The Author(s) 2021 en_ZA
dc.subject Finite element method en_ZA
dc.subject Fine meshes en_ZA
dc.subject Reinforced concrete en_ZA
dc.subject High-strength concrete en_ZA
dc.subject Smeared crack approach en_ZA
dc.subject Damage mechanics en_ZA
dc.title Finite element modelling of plain and reinforced concrete specimens with the Kotsovos and Pavlovic material model, smeared crack approach and fine meshes en_ZA
dc.type Postprint Article en_ZA


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