DISPLACEMENT FIELD ANALYSIS IN WEDGE SPLITTING TESTnSPECIMEN 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 TESTnSPECIMEN BY ODM METHOD

Popis výsledku v původním jazyce

Multi-parameter fracture mechanics is nowadays quite extensively applied when crackednstructures/specimens are investigated. The reason is that it has been shown that it can benhelpful and bring more accurate results when fracture processes happen in a largernregion around the crack tip, what can be typical for material like concrete or othernmaterials with quasi-brittle behaviour. Various relative crack length configurations havenbeen chosen in order to investigate the importance of the higher-order terms of thenWilliams power expansion on the crack-tip stress field distribution in Wedge splittingntest specimen. The higher-order terms are calculated by means of the over-deterministicnmethod from displacements of nodes around the crack tip obtained by a finite elementnanalysis in different radial distances from the crack tip. The effect of the constraint levelnis investigated. Although the third and higher terms of the Williams series are very oftennneglected, their influence on the opening stress values is investigated.

Název v anglickém jazyce

DISPLACEMENT FIELD ANALYSIS IN WEDGE SPLITTING TESTnSPECIMEN BY ODM METHOD

Popis výsledku anglicky

Multi-parameter fracture mechanics is nowadays quite extensively applied when crackednstructures/specimens are investigated. The reason is that it has been shown that it can benhelpful and bring more accurate results when fracture processes happen in a largernregion around the crack tip, what can be typical for material like concrete or othernmaterials with quasi-brittle behaviour. Various relative crack length configurations havenbeen chosen in order to investigate the importance of the higher-order terms of thenWilliams power expansion on the crack-tip stress field distribution in Wedge splittingntest specimen. The higher-order terms are calculated by means of the over-deterministicnmethod from displacements of nodes around the crack tip obtained by a finite elementnanalysis in different radial distances from the crack tip. The effect of the constraint levelnis investigated. Although the third and higher terms of the Williams series are very oftennneglected, their influence on the opening stress values is investigated.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20306 - Audio engineering, reliability analysis

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-TU Ostrava, Faculty of Civil Engineering

Místo vydání

Ostrava

Místo konání akce

Ostrava

Datum konání akce

24. 5. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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