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Finite element analysis of steel fiber-reinforced concrete (SFRC): validation of experimental tensile capacity of dog-bone specimens
- Source :
- International Journal of Advanced Structural Engineering. 6:1-8
- Publication Year :
- 2014
- Publisher :
- Springer Science and Business Media LLC, 2014.
-
Abstract
- Finite element analyses are conducted to model the tensile capacity of steel fiber-reinforced concrete (SFRC). For this purpose dog-bone specimens are casted and tested under direct and uniaxial tension. Two types of aggregates (brick and stone) are used to cast the SFRC and plain concrete. The fiber volume ratio is maintained 1.5 %. Total 8 numbers of dog-bone specimens are made and tested in a 1000-kN capacity digital universal testing machine (UTM). The strain data are gathered employing digital image correlation technique from high-definition images and high-speed video clips. Then, the strain data are synthesized with the load data obtained from the load cell of the UTM. The tensile capacity enhancement is found 182–253 % compared to control specimen to brick SFRC and in case of stone SFRC the enhancement is 157–268 %. Fibers are found to enhance the tensile capacity as well as ductile properties of concrete that ensures to prevent sudden brittle failure. The dog-bone specimens are modeled in the ANSYS 10.0 finite element platform and analyzed to model the tensile capacity of brick and stone SFRC. The SOLID65 element is used to model the SFRC as well as plain concretes by optimizing the Poisson’s ratio, modulus of elasticity, tensile strength and stress–strain relationships and also failure pattern as well as failure locations. This research provides information of the tensile capacity enhancement of SFRC made of both brick and stone which will be helpful for the construction industry of Bangladesh to introduce this engineering material in earthquake design. Last of all, the finite element outputs are found to hold good agreement with the experimental tensile capacity which validates the FE modeling.
- Subjects :
- Brick
Universal testing machine
Digital image correlation
Materials science
business.industry
Fiber volume ratio
Young's modulus
Fiber-reinforced concrete
Structural engineering
law.invention
symbols.namesake
Properties of concrete
law
Ultimate tensile strength
symbols
business
Civil and Structural Engineering
Subjects
Details
- ISSN :
- 20086695 and 20083556
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- International Journal of Advanced Structural Engineering
- Accession number :
- edsair.doi.dedup.....e7b620258a5faf92f2035bbe81375c2f