Keywords: textile reinforced concrete, strain hardening, cementitious composites, microplane damage model, damage mechanics, shell structures, geometrical nonlinearity, finite element analysis..

Textile reinforced concrete (TRC) is a composite material with high load bearing capacity and non-corrosive reinforcement which is well suited for the construction of thin-walled shell structures. This composite material exhibits a considerable strain hardening behavior under tensile loading as a result of the interaction between concrete matrix and textile fabric. Based on the orientation of composite layers and also the formation of load-induced finely distributed cracking, TRC exhibits a considerable anisotropic behavior. In this paper, simulation of TRC shell structures using an anisotropic damage model for the composite material is presented using physically and geometrically nonlinear finite element analysis. The damage function is calibrated on the basis of tensile tests of TRC specimens and is validated based on the simulation of bending tests. Furthermore slab tests with central out of plane loading are simulated using the described computational model. The results of the simulations are compared with the experiments in terms of load-deflection response and cracking pattern of the TRC slab.

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