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Numerical Mesoscopic Analysis of Fracture in Fine-Grained Concrete

Skarzynski Ł. / Tejchman J.

This paper presents numerical two-dimensional results for fine-grained concrete under quasi-static three-point bending at meso-scale. Concrete was modelled as a random heterogeneous three-phase material. The simulations for notched concrete beams were carried out with the standard finite element method using an isotropic damage constitutive model enhanced by a characteristic length of micro-structure by means of a non-local theory. The effect of the volume fraction, shape, size, statistical distribution and stiffness of aggregate was analysed. Moreover, the effect of the bond thickness, notch size and characteristic length of micro-structure on the material behaviour was numerically investigated. The FE results were compared with own laboratory test results and other meso-scale calculations for three-phase concrete elements.

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Numerical Mesoscopic Analysis of Fracture in Fine-Grained Concrete

Skarzynski Ł. / Tejchman J.

This paper presents numerical two-dimensional results for fine-grained concrete under quasi-static three-point bending at meso-scale. Concrete was modelled as a random heterogeneous three-phase material. The simulations for notched concrete beams were carried out with the standard finite element method using an isotropic damage constitutive model enhanced by a characteristic length of micro-structure by means of a non-local theory. The effect of the volume fraction, shape, size, statistical distribution and stiffness of aggregate was analysed. Moreover, the effect of the bond thickness, notch size and characteristic length of micro-structure on the material behaviour was numerically investigated. The FE results were compared with own laboratory test results and other meso-scale calculations for three-phase concrete elements.

Numerical Mesoscopic Analysis of Fracture in Fine-Grained Concrete

Skarzynski Ł. / Tejchman J.

This paper presents numerical two-dimensional results for fine-grained concrete under quasi-static three-point bending at meso-scale. Concrete was modelled as a random heterogeneous three-phase material. The simulations for notched concrete beams were carried out with the standard finite element method using an isotropic damage constitutive model enhanced by a characteristic length of micro-structure by means of a non-local theory. The effect of the volume fraction, shape, size, statistical distribution and stiffness of aggregate was analysed. Moreover, the effect of the bond thickness, notch size and characteristic length of micro-structure on the material behaviour was numerically investigated. The FE results were compared with own laboratory test results and other meso-scale calculations for three-phase concrete elements.

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Title:

Numerical Mesoscopic Analysis of Fracture in Fine-Grained Concrete

Contributors:

Skarzynski Ł. (author) / Tejchman J. (author)

Published in:

Archives of Civil Engineering, Vol 58, Iss 3, Pp 331-361 (2012)

Publication date:

2012

ISSN:

DOI:

https://doi.org/10.2478/v.10169-012-0019-7

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

aggregate , concrete , finite element analysis , interfacial transition zone , microstructure , Engineering (General). Civil engineering (General) , TA1-2040

Metadata by DOAJ is licensed under CC BY-SA 1.0

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