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"
}