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Computers and Concrete Volume 8, Number 3, June 2011 , pages 243-278 DOI: https://doi.org/10.12989/cac.2011.8.3.243 |
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Numerical analysis of Brazilian split test on concrete cylinder |
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Adam Wosatko, Andrzej Winnicki and Jerzy Pamin
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| Abstract | ||
| The paper presents simulations of the Brazilian test using two numerical models. Both models are regularized in order to obtain results independent of discretization. The first one, called gradient damage, is refined by additional averaging equation which contains gradient terms and an internal length scale as localization limiter. In the second one, called viscoplastic consistency model, the yield function depends on the viscoplastic strain rate. In this model regularization properties are governed by the assumed strain rate. The two models are implemented in the FEAP finite element package and compared in this paper. Parameter studies of the split test are performed in order to point out the features of each model. | ||
| Key Words | ||
| Brazilian test; gradient damage; viscoplastic consistency; splitting; localization; concrete; FEM simulations. | ||
| Address | ||
| Adam Wosatko, Andrzej Winnicki and Jerzy Pamin: Faculty of Civil Engineering, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland | ||