The effect of critical distance on stability conditions for a crack at the interface between two polymer materials

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F12%3APU100671" target="_blank" >RIV/00216305:26210/12:PU100671 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The effect of critical distance on stability conditions for a crack at the interface between two polymer materials

Popis výsledku v původním jazyce

The aim of this work is to study the behaviour of a crack with its tip at the interface between two polymer materials. A numerical model of a cracked bi-material tension specimen is investigated and different stability criteria are tested. The stabilitycriterion of a general stress concentrator usually needs a relation between the critical value of the generalized stress intensity factor (HIC) and critical value of the stress intensity factor KIC (fracture toughness). This relation is a function of theelastic mismatch of particular materials; the fracture toughness of the main material and the critical distance d ahead of the stress concentrator, where the criterion is applied. Estimation of distance d is usually not straightforward and different authors use different approaches for its determination. Therefore the main aim of this study is the mutual comparison of published approaches for d estimation and to quantify the influence of d choice on the critical load value. The results

Název v anglickém jazyce

The effect of critical distance on stability conditions for a crack at the interface between two polymer materials

Popis výsledku anglicky

The aim of this work is to study the behaviour of a crack with its tip at the interface between two polymer materials. A numerical model of a cracked bi-material tension specimen is investigated and different stability criteria are tested. The stabilitycriterion of a general stress concentrator usually needs a relation between the critical value of the generalized stress intensity factor (HIC) and critical value of the stress intensity factor KIC (fracture toughness). This relation is a function of theelastic mismatch of particular materials; the fracture toughness of the main material and the critical distance d ahead of the stress concentrator, where the criterion is applied. Estimation of distance d is usually not straightforward and different authors use different approaches for its determination. Therefore the main aim of this study is the mutual comparison of published approaches for d estimation and to quantify the influence of d choice on the critical load value. The results

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Engineering Mechanics

ISSN

1802-1484

e-ISSN

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Svazek periodika

19

Číslo periodika v rámci svazku

2/3

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

10

Strana od-do

155-164

Kód UT WoS článku

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EID výsledku v databázi Scopus

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