Estimation of crack behaviour in the ceramic laminate with strong interfaces

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F15%3APU114752" target="_blank" >RIV/00216305:26210/15:PU114752 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Estimation of crack behaviour in the ceramic laminate with strong interfaces

Original language description

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.

Czech name

—

Czech description

—

Type

O - Miscellaneous

CEP classification

JL - Fatigue and fracture mechanics

OECD FORD branch

—

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů