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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F15%3APU115217" target="_blank" >RIV/00216305:26110/15:PU115217 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4203/ccp.108.25" target="_blank" >http://dx.doi.org/10.4203/ccp.108.25</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4203/ccp.108.25" target="_blank" >10.4203/ccp.108.25</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

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

ISBN

978-1-905088-63-8

ISSN

1759-3433

e-ISSN

—

Počet stran výsledku

13

Strana od-do

1-13

Název nakladatele

Civil-Comp Press

Místo vydání

Stirlingshire, United Kingdom

Místo konání akce

Prague

Datum konání akce

1. 9. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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