Approaches to Determine Material Model of Fibre Reinforced Concrete

Abstract:

The paper deals with possible ways of defining the material model of fibre reinforced concrete as a material for structural design. The material model is a tool that can be used to describe response of material to the applied load. It usually includes several different parameters: strengths, ultimate deflections, deformation modules, fracture energy, etc. The paper deals with the problematic phases of tests that are necessary to create a material model, but which may not always provide relevant data. Due to the nature of the material (a fibre reinforced composite with a relatively brittle matrix), it is necessary to analyse separately the behaviour of the material before and after cracks when creating the material model.

• Periodical: Solid State Phenomena (Volume 309)
• Pages: 240-245
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.309.240
• Online since: August 2020
• Authors: Martin Tipka*, Jitka Vaskova
• Keywords: Compression, Fibre Reinforced Concrete, Material Model, Modulus of Elasticity, Numerical Analysis, Tension

References

[1] ČSN EN 14845-2: Test methods for fibres in concrete - Part 2: Effect on concrete. ČNI (2007).

[2] Vítek, P., Staňková Z., Fibre reinforced concrete for tunnel structures [in Czech], in: 21st Concrete Days 2014, Pardubice, ČBS, (2014).

[3] Tipka, M., Vašková, J., Vodička, J., Tensile strength tests for concrete and fibre reinforced concrete, in: 24th Concrete Days 2017, Zurich: Trans Tech Publications, (2018).

DOI: 10.4028/www.scientific.net/ssp.272.94

[4] Pukl, R., Lehký, D., Lipowczan, M., Novák, D., Material parameters for computer analysis of fibre reinforced concrete structures, in: 10th International Conference Fibre Concrete 2019, Prague, CTU in Prague, (2019).

DOI: 10.1088/1757-899x/596/1/012008

[5] Tipka, M., Tensile Properties of Structural Fibre Reinforced Concrete [in Czech], Ph.D. Thesis, CTU in Prague, Faculty of Civil Engineering, Prague, (2017).

[6] Tlemat, H., Pilakoutas, K., Neocleous, K., Modelling of SFRC using inverse finite element analysis, in: Materials and Structures 39, (2006).

DOI: 10.1617/s11527-005-9010-y

[7] Abbas, A.A., Syed Mohsin, S.M., Cotsovos, D.M., A simplified finite element model for assessing steel fibre reinforced concrete structural performance, in: Computers and Structures 173, (2016).

DOI: 10.1016/j.compstruc.2016.05.017

[8] Amin, A., Foster, S.J., Numerical modelling of large scale steel fibre reinforced - reinforced concrete beams failing in shear, in: FRC 2014 Joint ACI-fib International Workshop Fibre Reinforced Concrete: from Design to Structural Applications, (2014).

DOI: 10.35789/fib.bull.0079.ch16

[9] Zhan, Y., Bui, H.-G., Ninic, J., Mohseni, S.A., Meschke, G., Numerical modeling of steel fiber reinforced concrete on the meso- and macro-scale, in: Computational Modelling of Concrete Structures - Proceedings of EURO-C 2014, (2014).

DOI: 10.1201/b16645-64

[10] Buljak V., Oesch T., Bruno G., Simulating Fiber-reinforced concrete mechanical performance using CT-based fiber orientation data, in: Materials (Basel) 2019;12(5), (2019).

DOI: 10.3390/ma12050717