Publication detail

Modeling statistical size effect in quasibrittle structures by computattional stochastic fracture mechanics

VOŘECHOVSKÝ, M.

Original Title

Modeling statistical size effect in quasibrittle structures by computattional stochastic fracture mechanics

English Title

Modeling statistical size effect in quasibrittle structures by computattional stochastic fracture mechanics

Type

abstract

Language

Czech

Original Abstract

The paper presents theoretical and computational study and model of possible sources of size effects in concrete structures acting both separately and together. A particular motivation is the interplay of several identified scaling stemming from the material, boundary conditions and geometry. Methods of stochastic nonlinear fracture mechanics are used to model the well published results of direct tensile tests of dog-bone specimens with rotating boundary conditions. The computational approach represents a marriage of advanced computational nonlinear fracture mechanics with simulation techniques for random fields representing spatially varying material properties. Using a numerical example, it is documented how different dources of size effects detrimental to strength can interact and result in relatively complex quasibrittle failure processes.

English abstract

The paper presents theoretical and computational study and model of possible sources of size effects in concrete structures acting both separately and together. A particular motivation is the interplay of several identified scaling stemming from the material, boundary conditions and geometry. Methods of stochastic nonlinear fracture mechanics are used to model the well published results of direct tensile tests of dog-bone specimens with rotating boundary conditions. The computational approach represents a marriage of advanced computational nonlinear fracture mechanics with simulation techniques for random fields representing spatially varying material properties. Using a numerical example, it is documented how different dources of size effects detrimental to strength can interact and result in relatively complex quasibrittle failure processes.

Keywords

Modeling, statistical, size effect, quasibrittle, structures, computational stochastic, fracture mechanics

Key words in English

Modeling, statistical, size effect, quasibrittle, structures, computational stochastic, fracture mechanics

Authors

VOŘECHOVSKÝ, M.

Released

31. 7. 2007

Location

Tokyo, Japonsko

Pages from

465

Pages to

466

Pages count

2

BibTex

@misc{BUT60645,
  author="Miroslav {Vořechovský}",
  title="Modeling statistical size effect in quasibrittle structures by computattional stochastic fracture mechanics",
  year="2007",
  pages="465--466",
  address="Tokyo, Japonsko",
  note="abstract"
}