Detail publikace

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

VOŘECHOVSKÝ, M.

Originální název

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

Anglický název

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

Typ

abstrakt

Jazyk

čeština

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

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

Klíčová slova v angličtině

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

Autoři

VOŘECHOVSKÝ, M.

Vydáno

31. 7. 2007

Místo

Tokyo, Japonsko

Strany od

465

Strany do

466

Strany počet

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"
}