ABSTRACT
ABSTRACT: Nonlinear finite element analysis of reinforced concrete slabs using modern software packages poses many numerical difficulties. Besides, numerical modelling of slabs critical behavior are increasingly important in solving non-trivial engineering tasks, mainly because the possibilities of analytical approaches, implemented in existing building codes are not sufficient. That’s why exceptional attention has to be paid to the verification of numerical models with experimental ones taking into account theoretical and practical knowledge of cracking behavior of concrete itself. This article presents results of comparative studies of Reinforced Concrete (RC) slab deflection analysis. This slab is considered as 3D solid model for concrete and 1D beam elements for reinforcement. The main emphasis is put on application of different material models, which are currently available in MSC Patran/Marc software package, like Drucker-Prager and Buyukozturk concrete. The results of numerical model nonlinear analysis is presented and compared with the results of an experimental study.
