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KOTOUL, M. VYSLOUŽIL, T. DLOUHÝ, I.
Original Title
Modelling the R-curve behaviour in chevron-notched specimen using weight functions
Type
conference paper
Language
English
Original Abstract
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.
Keywords
R-curve modelling, weight functions, brittle matrix composites
Authors
KOTOUL, M.; VYSLOUŽIL, T.; DLOUHÝ, I.
RIV year
2005
Released
1. 1. 2005
Publisher
EC, Ltd., UK
Location
Eastleigh, England
ISBN
0-9547783-1-6
Book
Advances in Fracture and Damage Mechanics IV
Pages from
217
Pages to
225
Pages count
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" }