Simulation of Highly Ductile Fiber-Reinforced Cement-Based Composite Components Under Cyclic Loading

Abstract

Ductile fiber-reinforced cement-based composites (DFRCCs) are being investigated for new design as well as retrofitting of structures in seismic regions. DFRCC is highly ductile and is characterized by strain-hardening in tension to strains over 3% and by unique cyclic loading behavior. To accurately predict the structural performance of DFRCC components under cyclic and seismic loading, a robust constitutive model is needed for structuralscale simulations. In this paper, a constitutive model based on total strain is proposed and applied to simulate structural component tests. The model in particular captures DFRCC's unique reversed cyclic loading behavior. The simulation results show that the implemented model is robust and reasonably accurate in simulating DFRCC structural components reinforced with steel and fiber-reinforced polymer bars.

Seismic Response Analysis of Continuous Beam Bridges with Engineered Cementitious Composite (ECC) in Plastic Hinge Region

“…The ECC model in OpenSees uses the Engineered Cementitious Composites Material (ECC01) constitutive model, which is a constitutive model proposed by Han et al [12] in 2003 for ECC materials. To analyze the performance of ECC materials under earthquake loads, in addition to considering material damage, the energy dissipation capacity of ECC materials must also be At the same time, in order to study the impact of ECC materials enhancing RC bridge piers on the mechanical properties and seismic performance of the structure, four groups of ECC concrete with different contents are proposed in the plastic hinge zone, and a group of full-section concrete is proposed for numerical analysis.…”

Rheological Model to Describe the Cyclic Load-Bearing Behaviour of Strain-Hardening Cement-Based Composites (SHCC)

“…The basic assumption of all engineering models for the representation of the material behaviour is the uniform distribution of the properties over the volume considered. Some considerable work exists on the inverse analysis of the experimental investigations of the composite, where the functions used for describing material behaviour range from simple multi-linear approaches [23] to complex mathematical functions [24][25][26]. A formulation based on the work of Kabele [27] has already been included in a commercial structural analysis program.…”

Influence of PVA and PP fibers addition on the durability and mechanical properties of engineered cementitious composites blended with silica fume and zeolite

“…A wide variety of causes have been cited for concrete cracking under field conditions. These include mechanical loading, thermal shocks, shrinkage, unequal foundation settlement, and chemical attacks [5] , with sulfate attack being the most common cause of cracks developing within the cement-based materials that ultimately give rise to the poor durability of concrete in hydraulic structures [6,7]. Even though cracks accelerate concrete deterioration by allowing easier penetration of aggressive ions [8][9][10][11], the impacts of cracks on the deterioration process may be trivial when they within a relatively small width range.…”