Crack stability condition at the interface between two polymer materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F11%3A00370346" target="_blank" >RIV/68081723:_____/11:00370346 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26210/11:PU95822

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Crack stability condition at the interface between two polymer materials

Popis výsledku v původním jazyce

The aim of this work is to study the behaviour of crack with its tip at the interface of two polymer materials. The numerical model of cracked bi-material tension specimen is investigated and a stability criterion was tested. Usually a stability criterion based on general stress concentrator needs the relation between critical value of the generalized stress intensity factor and critical value of the stress intensity factor (fracture toughness). This relation is a function of elastic mismatch between particular materials, fracture toughness of the main material and critical distance d. Estimation of d is usually not straightforward and different authors use different approaches for its determination. Therefore main aim of this study is mutual comparison of published approaches for d estimation and to quantify their effect on the critical loading value. The results of this study can lead to better lifetime prediction and design of layered structures.

Název v anglickém jazyce

Crack stability condition at the interface between two polymer materials

Popis výsledku anglicky

The aim of this work is to study the behaviour of crack with its tip at the interface of two polymer materials. The numerical model of cracked bi-material tension specimen is investigated and a stability criterion was tested. Usually a stability criterion based on general stress concentrator needs the relation between critical value of the generalized stress intensity factor and critical value of the stress intensity factor (fracture toughness). This relation is a function of elastic mismatch between particular materials, fracture toughness of the main material and critical distance d. Estimation of d is usually not straightforward and different authors use different approaches for its determination. Therefore main aim of this study is mutual comparison of published approaches for d estimation and to quantify their effect on the critical loading value. The results of this study can lead to better lifetime prediction and design of layered structures.

Druh

D - Stať ve sborníku

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F09%2F0279" target="_blank" >GA106/09/0279: Mechanismy lomového porušování vrstevnatých polymerních prostředí</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název statě ve sborníku

Applied Mechanics 2011

ISBN

978-80-87434-03-1

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

247-250

Název nakladatele

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

Místo vydání

Brno, Česká republika

Místo konání akce

Velké Bílovice

Datum konání akce

18. 4. 2011

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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