Numerical Analysis of Sub-Critical Crack Growth in Particulate Ceramic Composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F14%3APU110169" target="_blank" >RIV/00216305:26210/14:PU110169 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.mspro.2014.06.335" target="_blank" >http://dx.doi.org/10.1016/j.mspro.2014.06.335</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.mspro.2014.06.335" target="_blank" >10.1016/j.mspro.2014.06.335</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Numerical Analysis of Sub-Critical Crack Growth in Particulate Ceramic Composites

Popis výsledku v původním jazyce

The strength of glass or ceramic containing materials can be affected by the environment (stress corrosion). Under applied stress, crack-like defects may grow (sub-critically) for stress intensity factors, KI, below the fracture toughness of the material, KIc. The aim of the present work was to develop a two-dimensional finite element model to analyze the subcritical crack growth behavior of ceramic-based particulate composites. The maximum tangential stress criterion (MTS) was used to predict the direction of the crack propagation, in the framework of linear elastic fracture mechanics. The modeled material was a Low Temperature Co-fired Ceramic (LTCC), containing alumina particles embedded in a glass matrix. The experimentally determined SCCG material behavior (i.e. v-KI data) was implemented in the numerical model. The effect of the elastic modulus of the particles on the subcritical crack propagation was investigated. The conclusions of this paper can contribute to a better understanding of the subcritical propagation of cracks in particulate composites.

Název v anglickém jazyce

Numerical Analysis of Sub-Critical Crack Growth in Particulate Ceramic Composites

Popis výsledku anglicky

The strength of glass or ceramic containing materials can be affected by the environment (stress corrosion). Under applied stress, crack-like defects may grow (sub-critically) for stress intensity factors, KI, below the fracture toughness of the material, KIc. The aim of the present work was to develop a two-dimensional finite element model to analyze the subcritical crack growth behavior of ceramic-based particulate composites. The maximum tangential stress criterion (MTS) was used to predict the direction of the crack propagation, in the framework of linear elastic fracture mechanics. The modeled material was a Low Temperature Co-fired Ceramic (LTCC), containing alumina particles embedded in a glass matrix. The experimentally determined SCCG material behavior (i.e. v-KI data) was implemented in the numerical model. The effect of the elastic modulus of the particles on the subcritical crack propagation was investigated. The conclusions of this paper can contribute to a better understanding of the subcritical propagation of cracks in particulate composites.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20306 - Audio engineering, reliability analysis

Projekt

<a href="/cs/project/EE2.3.30.0039" target="_blank" >EE2.3.30.0039: Excelentní mladí vědci na VUT v Brně</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Procedia Materials Science

ISSN

2211-8128

e-ISSN

—

Svazek periodika

3

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

2071-2076

Kód UT WoS článku

000398274600328

EID výsledku v databázi Scopus

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