Publication result detail

Fracture Simulations of Concrete Using Discrete Meso-level Model with Random Fluctuations of Material Parameters

ELIÁŠ, J.; VOŘECHOVSKÝ, M.; LE, J.

Original Title

Fracture Simulations of Concrete Using Discrete Meso-level Model with Random Fluctuations of Material Parameters

English Title

Fracture Simulations of Concrete Using Discrete Meso-level Model with Random Fluctuations of Material Parameters

Type

Paper in proceedings (conference paper)

Original Abstract

The paper presents numerical simulations of concrete fracture performed on beams of variable size and notch depth using the stochastic meso-level discrete model. The model includes a substantial part of randomness in concrete heterogeneity by accounting for the largest grains when assembling the lattice geometry. The remaining randomness, caused by finer particles and the non-uniformity of the mixing process, is introduced by random fluctuations of material parameters represented by a random field. The results of the stochastic meso-level discrete model are compared with published fracture experiments performed on concrete beams loaded in three-point bending. The effects of randomness in connection with different beam size and notch depth are discussed, as well as observed differences in dissipated energy.

English abstract

The paper presents numerical simulations of concrete fracture performed on beams of variable size and notch depth using the stochastic meso-level discrete model. The model includes a substantial part of randomness in concrete heterogeneity by accounting for the largest grains when assembling the lattice geometry. The remaining randomness, caused by finer particles and the non-uniformity of the mixing process, is introduced by random fluctuations of material parameters represented by a random field. The results of the stochastic meso-level discrete model are compared with published fracture experiments performed on concrete beams loaded in three-point bending. The effects of randomness in connection with different beam size and notch depth are discussed, as well as observed differences in dissipated energy.

Keywords

-

Key words in English

-

Authors

ELIÁŠ, J.; VOŘECHOVSKÝ, M.; LE, J.

Released

01.10.2014

Publisher

Springer

ISBN

978-3-319-06330-0

Book

Multiscale Modeling and Uncertainty Quantification of Materials and Structures

Pages from

3

Pages to

18

Pages count

16

BibTex

@inproceedings{BUT114006,
  author="Jan {Eliáš} and Miroslav {Vořechovský} and Jia-Liang {Le}",
  title="Fracture Simulations of Concrete Using Discrete Meso-level Model with Random Fluctuations of Material Parameters",
  booktitle="Multiscale Modeling and Uncertainty Quantification of Materials and Structures",
  year="2014",
  pages="3--18",
  publisher="Springer",
  doi="10.1007/978-3-319-06331-7",
  isbn="978-3-319-06330-0"
}