INFLUENCE OF THE SINGULARITY INDUCED BY THE FREE SURFACE ON BEHAVIOUR OF THIN BODY WITH A V-NOTCH

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

čeština

Název v původním jazyce

INFLUENCE OF THE SINGULARITY INDUCED BY THE FREE SURFACE ON BEHAVIOUR OF THIN BODY WITH A V-NOTCH

Popis výsledku v původním jazyce

The influence of the singularity induced by the free surface on the behaviour of a body with a V-notch is investigated in this paper. Attention is focused mainly on the change of the singularity and the stress state through the thickness of a three-dimensional specimen. Numerical finite-element analysis of the tension loaded specimens with a V-notch were performed. The displacements and the stresses from the analysis were used to estimate the power of singularities using a log-log regression analysis along the crack front. It was found that in the middle of the specimen singularity of the V-notch is dominant this can be found using analytic equations describing two-dimensional stress distribution around the sharp V-notch. This singularity is dependentonly on the V-notch angle. The second singularity is dominant at the free surface and their influence becomes nearly zero away from boundary layer. The thickness of boundary layer (region influenced by corner singularity) depends only on

Název v anglickém jazyce

INFLUENCE OF THE SINGULARITY INDUCED BY THE FREE SURFACE ON BEHAVIOUR OF THIN BODY WITH A V-NOTCH

Popis výsledku anglicky

The influence of the singularity induced by the free surface on the behaviour of a body with a V-notch is investigated in this paper. Attention is focused mainly on the change of the singularity and the stress state through the thickness of a three-dimensional specimen. Numerical finite-element analysis of the tension loaded specimens with a V-notch were performed. The displacements and the stresses from the analysis were used to estimate the power of singularities using a log-log regression analysis along the crack front. It was found that in the middle of the specimen singularity of the V-notch is dominant this can be found using analytic equations describing two-dimensional stress distribution around the sharp V-notch. This singularity is dependentonly on the V-notch angle. The second singularity is dominant at the free surface and their influence becomes nearly zero away from boundary layer. The thickness of boundary layer (region influenced by corner singularity) depends only on

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název statě ve sborníku

Applied Mechanics 2007 - Book of Extended Abstract

ISBN

978-80-248-1389-9

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

155-156

Název nakladatele

VŠB - Technical University of Ostrava

Místo vydání

Ostrava

Místo konání akce

Malenovice

Datum konání akce

16. 4. 2007

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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