Interplay of size effects in concrete specimens by computational stochastic fracture mechanics

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F06%3APU63926" target="_blank" >RIV/00216305:26110/06:PU63926 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

čeština

Original language name

Interplay of size effects in concrete specimens by computational stochastic fracture mechanics

Original language description

We attempt at identifying, studying and modeling possible sources of size effects in concrete structures both separately and brought together. We are particularly motivated by an interplay of several identified scaling lengths stemming from material, boundary conditions and geometry. We model well published results on direct tensile tests of dog-bone specimens with rotating boundary conditions performed by van Vliet and van Mier by methods of stochastic nonlinear fracture mechanics. Using the numericalexample, we document how different sources of size effects on strength can interact and result in relatively complex processes in quasibrittle failure. The presented study documents the well known fact that an experimental determination of material parameters (needed for rational and safe design of structures) is very difficult for quasibrittle materials such as concrete.

Czech name

Interplay of size effects in concrete specimens by computational stochastic fracture mechanics

Czech description

We attempt at identifying, studying and modeling possible sources of size effects in concrete structures both separately and brought together. We are particularly motivated by an interplay of several identified scaling lengths stemming from material, boundary conditions and geometry. We model well published results on direct tensile tests of dog-bone specimens with rotating boundary conditions performed by van Vliet and van Mier by methods of stochastic nonlinear fracture mechanics. Using the numericalexample, we document how different sources of size effects on strength can interact and result in relatively complex processes in quasibrittle failure. The presented study documents the well known fact that an experimental determination of material parameters (needed for rational and safe design of structures) is very difficult for quasibrittle materials such as concrete.

Type

D - Article in proceedings

CEP classification

JN - Civil engineering

OECD FORD branch

—

Project

<a href="/en/project/GA103%2F04%2F2092" target="_blank" >GA103/04/2092: Model identification and optimization at material a structural levels</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2006

Confidentiality

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

Article name in the collection

Inženýrská maechanika

ISBN

80-86246-27-2

ISSN

—

e-ISSN

—

Number of pages

16

Pages from-to

1-16

Publisher name

Neuveden

Place of publication

Svratka, ČR

Event location

Svratka

Event date

May 15, 2006

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

—