Publication detail

The Influence of Correlation Length on the Strength of Stochastic Discrete Models

KADĚROVÁ, J. ELIÁŠ, J. VOŘECHOVSKÝ, M.

Original Title

The Influence of Correlation Length on the Strength of Stochastic Discrete Models

Type

conference paper

Language

English

Original Abstract

This paper presents a meso-scale discrete model suitable for simulation of concrete fracturing. The model is enhanced by spatial fluctuation of the model parameters related to tensile behavior. The spatial variability of the parameters are represented using random fields. The main objective of the paper is to investigate the effect of correlation length of the random fields on the peak loads simulated by the discrete model. Three point bending of concrete beams is selected for the study presented. In specimens failing at crack initiation from a smooth surface, an interesting dependency is reported. For a correlation length close to a size of the fracture process zone (a zone with a concentrated damage), a significant drop in the peak load occurs. The paper also reports clear dependency of the peak load variability on the correlation length. In specimens containing a deep notch, the average peak load is almost insensitive to the correlation length but the variability seems to be influenced.

Keywords

concrete, lattice-particle model, crack, random field, variability, autocorrelation length, notch, beam, bending, size effect

Authors

KADĚROVÁ, J.; ELIÁŠ, J.; VOŘECHOVSKÝ, M.

RIV year

2015

Released

1. 9. 2015

Publisher

Civil-Comp Press

Location

Stirlingshire, United Kingdom

ISBN

978-1-905088-63-8

Book

Proceedings of the Fifteenth International Conference on Civil, Structural and Environmental Engineering Computing

Edition

Civil Comp Proceedings

Edition number

108

ISBN

1759-3433

Periodical

Civil-Comp Proceedings

Number

108

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

13

Pages count

13

URL

http://dx.doi.org/10.4203/ccp.108.25

BibTex

@inproceedings{BUT115984,
  author="Jana {Kaděrová} and Jan {Eliáš} and Miroslav {Vořechovský}",
  title="The Influence of Correlation Length  on the Strength of Stochastic Discrete Models",
  booktitle="Proceedings of the
Fifteenth International Conference on
Civil, Structural and Environmental
Engineering Computing",
  year="2015",
  series="Civil Comp Proceedings",
  journal="Civil-Comp Proceedings",
  number="108",
  pages="1--13",
  publisher="Civil-Comp Press",
  address="Stirlingshire, United Kingdom",
  doi="10.4203/ccp.108.25",
  isbn="978-1-905088-63-8",
  issn="1759-3433",
  url="http://dx.doi.org/10.4203/ccp.108.25"
}