Detail publikačního výsledku

Modelling the R-curve behaviour in chevron-notched specimen using weight functions

KOTOUL, M.; VYSLOUŽIL, T.; DLOUHÝ, I.

Originální název

Modelling the R-curve behaviour in chevron-notched specimen using weight functions

Anglický název

Modelling the R-curve behaviour in chevron-notched specimen using weight functions

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The contribution deals with modeling of bridged crack in the chevron-notched three point bending specimen made of the glass matrix composite reinforced by long SiC fibres. Weight functions for orthotropic material are obtained numerically by means of detailed FEM analysis in the system ANSYS and they are further used together with a bridging model available in literature to theoretical prediction of R-curve. Material orthotropy is captured using Barnett-Lothe's tensors calculated directly from the elastic moduli of composite. Recurrent calculations for the crack opening displacement resulting from applied loading and bridging stresses were performed within the system MAPLE. Theoretical results are then compared with experimental data.

Anglický abstrakt

The contribution deals with modeling of bridged crack in the chevron-notched three point bending specimen made of the glass matrix composite reinforced by long SiC fibres. Weight functions for orthotropic material are obtained numerically by means of detailed FEM analysis in the system ANSYS and they are further used together with a bridging model available in literature to theoretical prediction of R-curve. Material orthotropy is captured using Barnett-Lothe's tensors calculated directly from the elastic moduli of composite. Recurrent calculations for the crack opening displacement resulting from applied loading and bridging stresses were performed within the system MAPLE. Theoretical results are then compared with experimental data.

Klíčová slova

R-curve modelling, weight functions, brittle matrix composites

Klíčová slova v angličtině

R-curve modelling, weight functions, brittle matrix composites

Autoři

KOTOUL, M.; VYSLOUŽIL, T.; DLOUHÝ, I.

Vydáno

01.01.2005

Nakladatel

EC, Ltd., UK

Místo

Eastleigh, England

ISBN

0-9547783-1-6

Kniha

Advances in Fracture and Damage Mechanics IV

Strany od

217

Strany počet

9

BibTex

@inproceedings{BUT14893,
  author="Michal {Kotoul} and Tomáš {Vysloužil} and Ivo {Dlouhý}",
  title="Modelling the R-curve behaviour in chevron-notched specimen using weight functions",
  booktitle="Advances in Fracture and Damage Mechanics IV",
  year="2005",
  pages="9",
  publisher="EC, Ltd., UK",
  address="Eastleigh, England",
  isbn="0-9547783-1-6"
}