DISPLACEMENT FIELD ANALYSIS IN WEDGE SPLITTING TEST SPECIMEN BY ODM METHOD

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

angličtina

Název v původním jazyce

DISPLACEMENT FIELD ANALYSIS IN WEDGE SPLITTING TEST SPECIMEN BY ODM METHOD

Popis výsledku v původním jazyce

Multi-parameter fracture mechanics is nowadays quite extensively applied when cracked structures/specimens are investigated. The reason is that it has been shown that it can be helpful and bring more accurate results when fracture processes happen in a larger region around the crack tip, what can be typical for material like concrete or other materials with quasi-brittle behaviour. Various relative crack length configurations have been chosen in order to investigate the importance of the higher-order terms of the Williams power expansion on the crack-tip stress field distribution in Wedge splitting test specimen. The higher-order terms are calculated by means of the over-deterministic method from displacements of nodes around the crack tip obtained by a finite element analysis in different radial distances from the crack tip. The effect of the constraint level is investigated. Although the third and higher terms of the Williams series are very often neglected, their influence on the opening stress values is investigated.

Název v anglickém jazyce

DISPLACEMENT FIELD ANALYSIS IN WEDGE SPLITTING TEST SPECIMEN BY ODM METHOD

Popis výsledku anglicky

Multi-parameter fracture mechanics is nowadays quite extensively applied when cracked structures/specimens are investigated. The reason is that it has been shown that it can be helpful and bring more accurate results when fracture processes happen in a larger region around the crack tip, what can be typical for material like concrete or other materials with quasi-brittle behaviour. Various relative crack length configurations have been chosen in order to investigate the importance of the higher-order terms of the Williams power expansion on the crack-tip stress field distribution in Wedge splitting test specimen. The higher-order terms are calculated by means of the over-deterministic method from displacements of nodes around the crack tip obtained by a finite element analysis in different radial distances from the crack tip. The effect of the constraint level is investigated. Although the third and higher terms of the Williams series are very often neglected, their influence on the opening stress values is investigated.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of scientific conference Structural Reliability / Modelling in mechanics 2018

ISBN

978-80-248-4175-5

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

1-7

Název nakladatele

VŠB-TUO Ostrava, Fakulta stavební, Katedra stavební mechaniky

Místo vydání

Ostrava

Místo konání akce

Katedra stavební mechaniky, Fakulta stavební VŠB

Datum konání akce

24. 5. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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