Crack Growth Modelling in the Silicon Nitride Ceramics by Application of the Cohesive Zone Approach

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F14%3A00434890" target="_blank" >RIV/68081723:_____/14:00434890 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.592-593.193" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/KEM.592-593.193</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.592-593.193" target="_blank" >10.4028/www.scientific.net/KEM.592-593.193</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Crack Growth Modelling in the Silicon Nitride Ceramics by Application of the Cohesive Zone Approach

Popis výsledku v původním jazyce

Specific silicon nitride based materials are considered according to certain practical requirements of process, the influence of the grain size and orientation on the bridging mechanisms was found. Crack-bridging mechanisms can provide substantial increases in toughness coupled with the strength in ceramics. The prediction of the crack propagation through interface elements based on the fracture mechanics approach and cohesive zone model is investigated and from the amount of damage models the cohesivemodels seem to be especially attractive for the practical applications. Using cohesive models the behaviour of materials is realized by two types of elements. The former is the element for classical continuum and the latter is the connecting cohesive element. Within the standard finite element package Abaqus a new finite element has been developed; it is written via the UEL (user?s element) procedure. Its shape can be very easily modified according to the experimental data for the set of

Název v anglickém jazyce

Crack Growth Modelling in the Silicon Nitride Ceramics by Application of the Cohesive Zone Approach

Popis výsledku anglicky

Specific silicon nitride based materials are considered according to certain practical requirements of process, the influence of the grain size and orientation on the bridging mechanisms was found. Crack-bridging mechanisms can provide substantial increases in toughness coupled with the strength in ceramics. The prediction of the crack propagation through interface elements based on the fracture mechanics approach and cohesive zone model is investigated and from the amount of damage models the cohesivemodels seem to be especially attractive for the practical applications. Using cohesive models the behaviour of materials is realized by two types of elements. The former is the element for classical continuum and the latter is the connecting cohesive element. Within the standard finite element package Abaqus a new finite element has been developed; it is written via the UEL (user?s element) procedure. Its shape can be very easily modified according to the experimental data for the set of

Druh

D - Stať ve sborníku

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

—

Projekt

—

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

193-196

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

000336694400041