Advanced Numerical Models for the Analysis of Sustainable FRC Structures

Abstract

This chapter introduces some of the relevant modelling approaches thatare being used to simulate the behaviour of cementitious materials reinforced withdiscrete fibres. The major part of these approaches were originally proposed formodelling non-fibrous reinforced cement based materials? therefore the main focusherein given is related to the aspects how fibre reinforcement mechanisms havebeen considered. These approaches were grouped in two classes? one where fibresare explicitly considered in the finite element mesh (FEMesh)? herein designated asDiscrete Fibre Reinforcement Approaches (DFRAs). The other class is designatedby smeared fibre reinforcement approaches (SFRAs)? where fibres are not part ofthe FEMesh and their contribution is basically considered attributing a constitutivelaw to the FRC that simulates the fibre reinforcement mechanisms in terms of thefracture modes of this composite material.