Original scientific paper

Sensitivity analysis of numerical parameters in FEM/DEM model for RC structures

Nikolina Živaljić orcid.org/0000-0002-2225-8526 ; University of Split, Faculty of Civil Engineering, Arhitecture and Geodesy, Matice Hrvatske 15, HR-21000 Split, CROATIA
Hrvoje Smoljanović ; University of Split, Faculty of Civil Engineering, Arhitecture and Geodesy, Matice Hrvatske 15, HR-21000 Split, CROATIA
Željana Nikolić ; University of Split, Faculty of Civil Engineering, Arhitecture and Geodesy, Matice Hrvatske 15, HR-21000 Split, CROATIA

Abstract

The application of the finite-discrete element method (FEM/DEM) in the analysis of reinforced concrete (RC) structures is still in its early stages. Therefore, in this paper, sensitivity of the numerical model for analysis of RC structures based on the FEM/DEM method to the numerical parameters is presented. The accuracy of the solution, depending on the mesh refinement, crack spacing and penalty term, was analysed. The performed numerical analyses are useful in predicting the penalty parameter and mesh density in order to minimize numerical errors in analysis of RC structures with the FEM/DEM method. Validation of the numerical model for adopted numerical parameters was also shown by comparing numerical and experimental results.

Keywords

finite-discrete element method; reinforced concrete structures; mesh refinement; crack spacing; penalty term

Hrčak ID:

184949

URI

https://hrcak.srce.hr/184949

Publication date:

18.7.2013.

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