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Mesoscale Fracture Analysis of Multiphase Cementitious Composites Using Peridynamics
Open AccessArticle

Mesoscale Characterization of Fracture Properties of Steel Fiber-Reinforced Concrete Using a Lattice–Particle Model

1
Department of Engineering, Universidad Loyola Andalucía, Calle Energía Solar 1, 41014 Sevilla, Spain
2
ETS de Ingeniería, Universidad de Sevilla, Camino de los Descubrimientos s/n, 41092 Sevilla, Spain
*
Author to whom correspondence should be addressed.
Academic Editor: Erik Schlangen
Materials 2017, 10(2), 207; https://doi.org/10.3390/ma10020207
Received: 16 January 2017 / Revised: 13 February 2017 / Accepted: 16 February 2017 / Published: 21 February 2017
(This article belongs to the Special Issue Numerical Analysis of Concrete using Discrete Elements)
This work presents a lattice–particle model for the analysis of steel fiber-reinforced concrete (SFRC). In this approach, fibers are explicitly modeled and connected to the concrete matrix lattice via interface elements. The interface behavior was calibrated by means of pullout tests and a range for the bond properties is proposed. The model was validated with analytical and experimental results under uniaxial tension and compression, demonstrating the ability of the model to correctly describe the effect of fiber volume fraction and distribution on fracture properties of SFRC. The lattice–particle model was integrated into a hierarchical homogenization-based scheme in which macroscopic material parameters are obtained from mesoscale simulations. Moreover, a representative volume element (RVE) analysis was carried out and the results shows that such an RVE does exist in the post-peak regime and until localization takes place. Finally, the multiscale upscaling strategy was successfully validated with three-point bending tests. View Full-Text
Keywords: lattice–particle model; fiber-reinforced concrete; fracture lattice–particle model; fiber-reinforced concrete; fracture
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MDPI and ACS Style

Montero-Chacón, F.; Cifuentes, H.; Medina, F. Mesoscale Characterization of Fracture Properties of Steel Fiber-Reinforced Concrete Using a Lattice–Particle Model. Materials 2017, 10, 207.

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