Estimation of Apparent Fracture Toughness of Alumina Based Ceramic Laminate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F14%3A00398723" target="_blank" >RIV/68081723:_____/14:00398723 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.592-593.405" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.592-593.405</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.592-593.405" target="_blank" >10.4028/www.scientific.net/KEM.592-593.405</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Estimation of Apparent Fracture Toughness of Alumina Based Ceramic Laminate

Popis výsledku v původním jazyce

The main aim of this contribution is the fracture behavior of layered ceramic composite with residual stresses. The influence of laminate composition on crack propagation (influence of material interfaces on crack shielding, effect of residual stresses,etc.) was investigated. The crack behavior was described by procedures based on linear elastic fracture mechanics (LEFM) and generalized LEFM. Computations were performed in 2D geometry under plain strain assumptions. For determination of the real crackfront shape during the crack propagation the three dimensional FEM models were developed. Both (2D/3D) approaches were compared and differences were closely discussed. The influence of laminate composition with residual stresses on critical values for crack propagation through laminate interfaces was also determined. The results obtained can be used for a design of new layered composites with improved resistance against propagation of cracks.

Název v anglickém jazyce

Estimation of Apparent Fracture Toughness of Alumina Based Ceramic Laminate

Popis výsledku anglicky

The main aim of this contribution is the fracture behavior of layered ceramic composite with residual stresses. The influence of laminate composition on crack propagation (influence of material interfaces on crack shielding, effect of residual stresses,etc.) was investigated. The crack behavior was described by procedures based on linear elastic fracture mechanics (LEFM) and generalized LEFM. Computations were performed in 2D geometry under plain strain assumptions. For determination of the real crackfront shape during the crack propagation the three dimensional FEM models were developed. Both (2D/3D) approaches were compared and differences were closely discussed. The influence of laminate composition with residual stresses on critical values for crack propagation through laminate interfaces was also determined. The results obtained can be used for a design of new layered composites with improved resistance against propagation of cracks.

Druh

D - Stať ve sborníku

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

—

Projekt

<a href="/cs/project/EE2.3.20.0214" target="_blank" >EE2.3.20.0214: Rozvoj lidských zdrojů ve výzkumu fyzikálních a materiálových vlastností modelových, nově vyvíjených a inženýrsky aplikovaných materiálů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

Materials Structure and Micromechanics of Fracture VII

ISBN

978-3-03785-934-6

ISSN

1013-9826

e-ISSN

—

Počet stran výsledku

4

Strana od-do

405-408

Název nakladatele

Trans Tech Publications

Místo vydání

Zurich

Místo konání akce

Brno

Datum konání akce

1. 7. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000336694400089