Detail publikace

Energetic-statistical size edffect simulated by SFEM with stratified sampling and crack band model

VOŘECHOVSKÝ, M. NOVÁK, D. BAŽANT, Z. PANG, S.

Originální název

Energetic-statistical size edffect simulated by SFEM with stratified sampling and crack band model

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

The paper presents a model that extends the stochastic finite element method to the modelling of transitional energetic-statistical size effect in unnotched quasibrittle structures of positive geometry, and to the low probability tail of structural strength distribution, important for safe design. For small structures, the model captures the energetic (deterministic) part of size effect and, for large structures, it converges to Weibull statistical size effect required by the weakest-link model of extreme value statistics. Prediction of the tail of extremely low probability such as one in a milion, which needs to be known, for safe design, is made feasible by the fact that the form of the cumulative distribution function of a quasibrittle structure of any size has been established analytically in previous work.

Klíčová slova

size effect, stratified sampling, crack band modelelement method, modelling, energetic-statistical

Autoři

VOŘECHOVSKÝ, M.; NOVÁK, D.; BAŽANT, Z.; PANG, S.

Rok RIV

2007

Vydáno

10. 9. 2007

Nakladatel

Wiley

Místo

BE

ISSN

0029-5981

Periodikum

International Journal for Numerical Methods in Engineering

Ročník

71

Číslo

11

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1297

Strany do

1320

Strany počet

23

BibTex

@article{BUT44476,
  author="Miroslav {Vořechovský} and Drahomír {Novák} and Zdeněk P. {Bažant} and Sze {Pang}",
  title="Energetic-statistical size edffect simulated by SFEM with stratified sampling and crack band model",
  journal="International Journal for Numerical Methods in Engineering",
  year="2007",
  volume="71",
  number="11",
  pages="1297--1320",
  issn="0029-5981"
}