Effect of the free surface on crack behaviour in cracked graded structures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F10%3APU90504" target="_blank" >RIV/00216305:26210/10:PU90504 - 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

Effect of the free surface on crack behaviour in cracked graded structures

Popis výsledku v původním jazyce

The aim of the paper is to study the free surface effect on crack behaviour of a crack located in a graded structure. For a determination of the effect the geometry of a Single Edge Crack Tension (SECT) specimen with graded region between two homogenousbasic materials is used in numerical simulations. A continuous and smooth graded structure is modelled with various magnitude of non-homogeneity. Fracture parameters are calculated along the crack front for different crack length. The influence of cracklength on the size of free surface affected region has been studied by estimating the stress singularity exponent p along the crack front, see Fig. 4. The effect of free surface was getting more significant with increasing crack length. The value of thestress singularity exponent decreases on the free surface to 90% of the magnitude in the middle of the specimen for all studied crack lengths.

Název v anglickém jazyce

Effect of the free surface on crack behaviour in cracked graded structures

Popis výsledku anglicky

The aim of the paper is to study the free surface effect on crack behaviour of a crack located in a graded structure. For a determination of the effect the geometry of a Single Edge Crack Tension (SECT) specimen with graded region between two homogenousbasic materials is used in numerical simulations. A continuous and smooth graded structure is modelled with various magnitude of non-homogeneity. Fracture parameters are calculated along the crack front for different crack length. The influence of cracklength on the size of free surface affected region has been studied by estimating the stress singularity exponent p along the crack front, see Fig. 4. The effect of free surface was getting more significant with increasing crack length. The value of thestress singularity exponent decreases on the free surface to 90% of the magnitude in the middle of the specimen for all studied crack lengths.

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/GD106%2F09%2FH035" target="_blank" >GD106/09/H035: Víceúrovňový design pokrokových materiálů</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

26th conference Computational Mechanics 2010 - Extended Abstracts

ISBN

978-80-7043-919-7

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

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Název nakladatele

University of West Bohemia, Plzeň

Místo vydání

University of West Bohemia, Plzeň

Místo konání akce

Nečtiny

Datum konání akce

8. 11. 2010

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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