Original scientific paper

https://doi.org/10.17559/TV-20181002104740

Three-Dimensional Finite-Discrete Element Framework for the Fracturing of Reinforced Concrete Structures

Željana Nikolić orcid.org/0000-0002-1097-5739 ; University of Split, Faculty of Civil Engineering, Architecture and Geodesy, Matice hrvatske 15, 21000 Split, Croatia
Nikolina Živaljić orcid.org/0000-0002-2225-8526 ; University of Split, Faculty of Civil Engineering, Architecture and Geodesy, Matice hrvatske 15, 21000 Split, Croatia
Hrvoje Smoljanović ; University of Split, Faculty of Civil Engineering, Architecture and Geodesy, Matice hrvatske 15, 21000 Split, Croatia

Abstract

This paper presents a three-dimensional numerical model based on finite-discrete element method for simulating cracking and predicting failure in reinforced concrete (RC) structures. Discrete representation of concrete cracks is coupled with a non-linear reinforcement model where reinforcing bars interact with concrete and slip due to crack opening and steel plastic deformation. Hence, it enables a simulation of complex material behaviour of concrete and steel in cracked zones and its influence on global structural behaviour. Several numerical examples are used to study the sensitivity of the model to different numerical and physical parameters and its capabilities in the analysis of RC structures.

Keywords

discrete cracks; failure; finite-discrete element method; reinforced concrete structures

Hrčak ID:

226014

URI

https://hrcak.srce.hr/226014

Publication date:

8.10.2019.

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