Publication result detail

Interplay of sources of size effects in concrete specimens studied via computational stochastic fracture mechanics

VOŘECHOVSKÝ, M.

Original Title

Interplay of sources of size effects in concrete specimens studied via computational stochastic fracture mechanics

English Title

Interplay of sources of size effects in concrete specimens studied via computational stochastic fracture mechanics

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

We attempt the identification, study and modelling of possible sources of size effects in concrete structures acting both separately and together. We are particularly motivated by the interplay of several identified scaling lengths stemming from the material, boundary conditions and geometry. We model the well published results of direct tensile tests of dog-bone specimens with rotating boundary conditions using methods of stochastic nonlinear fracture mechanics. Firstly, we model the specimens using microplane material law to show that a large portion of the dependence of nominal strength on structural size can be explained deterministically.

English abstract

We attempt the identification, study and modelling of possible sources of size effects in concrete structures acting both separately and together. We are particularly motivated by the interplay of several identified scaling lengths stemming from the material, boundary conditions and geometry. We model the well published results of direct tensile tests of dog-bone specimens with rotating boundary conditions using methods of stochastic nonlinear fracture mechanics. Firstly, we model the specimens using microplane material law to show that a large portion of the dependence of nominal strength on structural size can be explained deterministically.

Keywords

Computational stochastic fracture mechanics, size effect, random field, weak boundary, crack band, microplane model, dog-bone specimens, quasibrittle failure

Key words in English

Computational stochastic fracture mechanics, size effect, random field, weak boundary, crack band, microplane model, dog-bone specimens, quasibrittle failure

Authors

VOŘECHOVSKÝ, M.

Released

10.11.2006

Location

Brno, ČR

ISBN

1210-2717

Periodical

Inženýrská mechanika - Engineering Mechanics

Volume

13

Number

5

State

Czech Republic

Pages from

385

Pages to

401

Pages count

17

BibTex

@article{BUT43773,
  author="Miroslav {Vořechovský}",
  title="Interplay of sources of size effects in concrete specimens studied via computational stochastic fracture mechanics",
  journal="Inženýrská mechanika - Engineering Mechanics",
  year="2006",
  volume="13",
  number="5",
  pages="385--401",
  issn="1210-2717"
}