Computational Model of the Tensile Strength of Fiber-Reinforced Concrete

We propose a model of deformation and fracture of a composite based on the cement matrix (fiber-reinforced concrete) in tension. The model takes into account the presence of microcracks and pores in the structure of the material and the presence of reinforcing fibers. The computational formulas are...

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Bibliographic Details
Published in:Materials science (New York, N.Y.) N.Y.), 2015-11, Vol.51 (3), p.340-347
Main Authors: Sylovanyuk, V. P., Yukhym, R. Ya, Lisnichuk, А. E., Ivantyshyn, N. А.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Computation
Fiber reinforced concretes
Fracture mechanics
Materials Science
Mathematical models
Microcracks
Porosity
Reinforcing fibers
Solid Mechanics
Structural Materials
Tensile strength
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Summary:We propose a model of deformation and fracture of a composite based on the cement matrix (fiber-reinforced concrete) in tension. The model takes into account the presence of microcracks and pores in the structure of the material and the presence of reinforcing fibers. The computational formulas are proposed for the evaluation of the tensile strength of fiber-reinforced concrete. We analyze the influence of porosity and the volume content of reinforcing fibers on the strength of the composite. The experimental investigations and calculations reveal a noticeable increase in the tensile strength with the volume content of the fibers. The theoretical predictions are in good agreement with the experimental data.
ISSN:1068-820X
1573-885X
DOI:10.1007/s11003-015-9847-3