Title Mesoscale Characterization of Fracture Properties of Steel Fiber-Reinforced Concrete Using a Lattice-Particle Model
Authors MONTERO CHACÓN, FRANCISCO DE PAULA, Cifuentes, Hector, Medina, Fernando, MONTERO CHACÓN, FRANCISCO DE PAULA
External publication No
Means Mater.
Scope Article
Nature Científica
JCR Quartile 2
SJR Quartile 2
JCR Impact 2.46700
SJR Impact 0.73200
Area International
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85013772228&doi=10.3390%2fma10020207&partnerID=40&md5=692a2e1e624c72bd10e92fe402337aff
Publication date 01/02/2017
ISI 000395445800114
Scopus Id 2-s2.0-85013772228
DOI 10.3390/ma10020207
Abstract 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.
Keywords lattice-particle model; fiber-reinforced concrete; fracture
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