Publication detail
Numerical modelling of crack propagation and R-curve behaviour in layered Al2O3/ZrO2 composites
KOTOUL, M. VYSLOUŽIL, T.
Czech title
Numerical modelling of crack propagation and R-curve behaviour in layered Al2O3/ZrO2 composites
English title
Numerical modelling of crack propagation and R-curve behaviour in layered Al2O3/ZrO2 composites
Type
journal article - other
Language
en
Original abstract
The paper is devoted to numerical modelling of R-curve behaviour in laminates with strong interfaces, in particular multilayers made of alumina (A) and zirconia (Z). Contrary to previous studies based upon the application of approximate weight function method originally developed for homogeneous specimens, a full field analysis by FE of a three-point bending test of a sandwich beam is attempted and compared with the results obtained by approximate weight function method. Also the crack penetration across the layer interfaces is discussed, particularly in the case of a weak singularity.
Czech abstract
The paper is devoted to numerical modelling of R-curve behaviour in laminates with strong interfaces, in particular multilayers made of alumina (A) and zirconia (Z). Contrary to previous studies based upon the application of approximate weight function method originally developed for homogeneous specimens, a full field analysis by FE of a three-point bending test of a sandwich beam is attempted and compared with the results obtained by approximate weight function method. Also the crack penetration across the layer interfaces is discussed, particularly in the case of a weak singularity.
English abstract
The paper is devoted to numerical modelling of R-curve behaviour in laminates with strong interfaces, in particular multilayers made of alumina (A) and zirconia (Z). Contrary to previous studies based upon the application of approximate weight function method originally developed for homogeneous specimens, a full field analysis by FE of a three-point bending test of a sandwich beam is attempted and compared with the results obtained by approximate weight function method. Also the crack penetration across the layer interfaces is discussed, particularly in the case of a weak singularity.
Keywords in Czech
Multiple cracks, Surface layer, Interface,Thermal stresses, Matched asymptotic expansions, Reciprocal theorem
Keywords in English
Ceramic laminates, R-curve, toughness, finite element method
RIV year
2009
Released
14.07.2009
Publisher
Trans Tech Publications Ltd.
Location
Holandsko
ISSN
1013-9826
Journal
Key Engineering Materials
Volume
417-418
Number
1
Pages from–to
769–772
Pages count
4
BIBTEX
@article{BUT47569,
author="Michal {Kotoul} and Tomáš {Vysloužil},
title="Numerical modelling of crack propagation and R-curve behaviour in layered Al2O3/ZrO2 composites",
journal="Key Engineering Materials",
year="2009",
volume="417-418",
number="1",
month="July",
pages="769--772",
publisher="Trans Tech Publications Ltd.",
address="Holandsko",
issn="1013-9826"
}