Mechanical properties of hybrid fiber reinforced concrete

Date

2006-07-07

Author

Yurtseven, A. E.
Yaman, İsmail Özgür
Tokyay, Mustafa

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

272
views

0
downloads

Fiber reinforcement is commonly used to provide toughness and ductility to brittle cementitious matrices. Reinforcement of concrete with a single type of fiber may improve the desired properties to a limited level. A composite can be termed as hybrid, if two or more types of fibers are rationally combined to produce a composite that derives benefits from each of the individual fibers and exhibits a synergetic response. This study aims to characterize and quantify the mechanical properties of hybrid fiber reinforced concrete. For this purpose nine mixes, one plain control mix and eight fiber reinforced mixes were prepared. Six of the mixes were reinforced in a hybrid form. Four different types of fibers were used in combination, two of which were macro steel fibers, and the other two were micro fibers. Volume percentage of fiber inclusion was kept constant at 1.5%. In hybrid reinforced mixes volume percentage of macro fibers was 1.0% whereas the remaining fiber inclusion was composed of micro fibers. 28-day compressive strength, flexural tensile strength, flexural toughness, and impact resistance tests were performed in the hardened state. Various numerical analyses were carried out to quantify the determined mechanical properties and to describe the effects of fiber inclusion on these mechanical properties. It was observed that micro steel fibers contributed to the strength and toughness whereas polypropylene fibers are effective in providing ductility.

Subject Keywords

Fiber reinforcement, Hybrid composite, Impact resistance

URI

https://hdl.handle.net/11511/30997

DOI

https://doi.org/10.1007/978-1-4020-5104-3_25

Conference Name

16th European Conference of Fracture

Collections

Graduate School of Natural and Applied Sciences, Conference / Seminar

Suggestions

OpenMETU
Core

Determination of mechanical properties of hybrid fiber reinforced concrete Yurtseven, Alp Eren; Tokyay, Mustafa; Department of Civil Engineering (2004) Fiber reinforcement is commonly used to provide toughness and ductility to brittle cementitious matrices. Reinforcement of concrete with a single type of fiber may improve the desired properties to a limited level. A composite is termed as hybrid, if two or more types of fibers are rationally combined to produce a composite that derives benefits from each of the individual fibers and exhibits a synergetic response. This study aims to characterize and quantify the mechanical properties of hybrid fiber reinfo...
LINEAR CONTACT ALGORITHM FOR RIGID-PLASTIC FINITE-ELEMENT SIMULATION TEKKAYA, AE; SEN, A (1992-12-01) The rigid-plastic finite element analysis of metal forming processes is known to be much more efficient and stable than the elastic-plastic one. This efficiency results from the absence of kinematical nonlinearities in the formulation. Contact algorithms used in rigid-plastic models must agree with this fact, otherwise the efficiency can be damaged seriously.
Dynamic stress concentrations around a single fiber break in unidirectional composites: a 3D finite element analysis Mutlu, Çağlar; SABUNCUOĞLU, BARIŞ; Kadioglu, F Suat; Swolfs, Yentl (2023-01-01) When a fiber break occurs in longitudinal tension of a unidirectional composite, dynamic stress concentrations arise, which can be different from the ones found considering only static loading. The current paper analyzes the dynamic stress concentration factors (SCF) around a fiber break in unidirectional carbon fiber/epoxy composites. 3D finite element models with random and hexagonal fiber distributions were analyzed to investigate the evolution of stress concentrations as a function of time and position....
Mechanical, flow and electrical properties of thermoplastic polyurethane/fullerene composites: Effect of surface modification of fullerene Tayfun, Umit; KANBUR, YASİN; ABACI, UFUK; GÜNEY, HASAN YÜKSEL; Bayramlı, Erdal (2015-10-01) Thermoplastic polyurethane (TPU) composites with fullerene loadings varying from 0.5 to 2 weight% were prepared by melt-mixing method. Nitric acid oxidation and silanization were applied to fullerene surface to improve interfacial interactions with TPU matrix. The influence of surface modifications of fullerene on mechanical, melt flow and electrical properties of TPU based composites were investigated. Incorporation of fullerene leads to nearly twofold increase in tensile strength and Young's modulus of th...
Deformation Analysis of Elastic-Plastic Two Layer Tubes Subject to Pressure: an Analytical Approach Eraslan, Ahmet Nedim (2004-06-01) Analytical solutions are obtained for axisymmetric elastic-plastic deformations in tightly fitted concentric tubes with fixed ends subjected to either internal or external pressure. Tresca's yield criterion and its associated flow rule are used to estimate the elastic-plastic response of the assembly. The closed form solutions for all elastic-plastic deformation stages are obtained by assuming linear hardening material behavior. Some numerical examples are handled using the mechanical properties of real eng...

Citation Formats

A. E. Yurtseven, İ. Ö. Yaman, and M. Tokyay, “Mechanical properties of hybrid fiber reinforced concrete,” presented at the 16th European Conference of Fracture, Alexandroupolis, GREECE, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30997.