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Fiber-reinforced concrete in flexure: a cohesive/overlapping crack model application

Carpinteri, A. / Cadamuro, E. / Ventura, G.

Abstract The analysis of fibre-reinforced concrete taking into account the nonlinear behaviour of the material in tension and compression is addressed by a numerical approach based on the Cohesive–Overlapping Crack Model, in order to reveal the influence of fibre content in the flexural behavior of beams. The results of a numerical analysis and of an experimental campaign are compared in order to validate the proposed model. The numerical curves show a good approximation to the experimental results; however a less good approximation is evidenced when the fibre content is set to very low values or very high values of fibres, where an embrittlement of the mechanical behaviour of the concrete is revealed.

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Fiber-reinforced concrete in flexure: a cohesive/overlapping crack model application

Carpinteri, A. / Cadamuro, E. / Ventura, G.

Abstract The analysis of fibre-reinforced concrete taking into account the nonlinear behaviour of the material in tension and compression is addressed by a numerical approach based on the Cohesive–Overlapping Crack Model, in order to reveal the influence of fibre content in the flexural behavior of beams. The results of a numerical analysis and of an experimental campaign are compared in order to validate the proposed model. The numerical curves show a good approximation to the experimental results; however a less good approximation is evidenced when the fibre content is set to very low values or very high values of fibres, where an embrittlement of the mechanical behaviour of the concrete is revealed.

Fiber-reinforced concrete in flexure: a cohesive/overlapping crack model application

Carpinteri, A. / Cadamuro, E. / Ventura, G.

Abstract The analysis of fibre-reinforced concrete taking into account the nonlinear behaviour of the material in tension and compression is addressed by a numerical approach based on the Cohesive–Overlapping Crack Model, in order to reveal the influence of fibre content in the flexural behavior of beams. The results of a numerical analysis and of an experimental campaign are compared in order to validate the proposed model. The numerical curves show a good approximation to the experimental results; however a less good approximation is evidenced when the fibre content is set to very low values or very high values of fibres, where an embrittlement of the mechanical behaviour of the concrete is revealed.

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Title:

Fiber-reinforced concrete in flexure: a cohesive/overlapping crack model application

Contributors:

Carpinteri, A. (author) / Cadamuro, E. (author) / Ventura, G. (author)

Published in:

Materials and Structures ; 48

Publication date:

2013

ISSN:

DOI:

https://doi.org/10.1617/s11527-013-0179-1

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Structural instability , Fibre-reinforced concrete , Steel fibres , Cohesive crack , Scale effects

Classification:

BKL: 56.45 Baustoffkunde / 51.30 Werkstoffprüfung, Werkstoffuntersuchung

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