Publication detail

Estimation of crack behaviour in the ceramic laminate with strong interfaces

ŠTEGNEROVÁ, K. NÁHLÍK, L. HUTAŘ, P.

Original Title

Estimation of crack behaviour in the ceramic laminate with strong interfaces

Type

abstract

Language

English

Original Abstract

The contribution deals with a description of the specific crack behaviour in the layered alumina-zirconia ceramic laminate. The main aim is to clarify crack behaviour in the compressive layer and provide computational tools for estimation of crack behaviour in the field of strong residual stresses. The crack propagation was investigated on the basis of linear elastic fracture mechanics. Fracture parameters were computed numerically. Finite element models were developed in order to obtain a stress distribution in the laminate containing a crack and to simulate crack propagation. The sharp change of the crack propagation direction was estimated using criterion based on the strain energy density factor. Generalized linear elastic fracture mechanics was applied in the case of crack touching the material interface. Estimated crack behaviour is qualitatively in a good agreement with experimental observations.

Keywords

Layered ceramic composites, residual stresses, crack propagation, strain energy density factor.

Authors

ŠTEGNEROVÁ, K.; NÁHLÍK, L.; HUTAŘ, P.

Released

31. 7. 2015

Publisher

Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Brno, Czech Republic

Location

Brno

ISBN

978-80-87434-07-9

Book

ICSMA 17 Book of Abstracts

Pages from

288

Pages to

288

Pages count

1

BibTex

@misc{BUT115363,
  author="Kateřina {Štegnerová} and Luboš {Náhlík} and Pavel {Hutař}",
  title="Estimation of crack behaviour in the ceramic laminate with strong interfaces",
  booktitle="ICSMA 17 Book of Abstracts",
  year="2015",
  pages="288--288",
  publisher="Institute of Physics of Materials, Academy of Sciences of the Czech Republic, Brno, Czech Republic",
  address="Brno",
  isbn="978-80-87434-07-9",
  note="abstract"
}