INFLUENCE OF CRITICAL DISTANCE IN GMTS CRITERION ON VALUES OF INITIATION CRACK ANGLE IN C 50/60 CONCRETE

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F18%3APU127513" target="_blank" >RIV/00216305:26110/18:PU127513 - 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

INFLUENCE OF CRITICAL DISTANCE IN GMTS CRITERION ON VALUES OF INITIATION CRACK ANGLE IN C 50/60 CONCRETE

Popis výsledku v původním jazyce

The maximum tangential stress (MTS) criterion is traditionally used for evaluation of fracture resistance curve and crack initiation angle under mixed mode I/II. In the application of MTS criterion, values of stress intensity factors (SIF) for mode I and II are used. However, the concrete materials consist of matrix and various aggregate sizes, the aggregate size could have influence on the crack initiation angle under the mixed mode I/II. In this paper, a generalized maximum tangential stress (GMTS) criterion is used to investigate the influence of selection of critical distance on the crack initiation angle for concrete C 50/60. Various critical radiuses are investigated (the lengths are selected based on the size of the process zone and on the maximum size of coarse and fine aggregate). The numerically obtained results are discussed and compared with experimental results. The predicted results of GMTS criterion for a suitably chosen distance in different mixed mode conditions show good agreement with the available experimental ones.

Název v anglickém jazyce

INFLUENCE OF CRITICAL DISTANCE IN GMTS CRITERION ON VALUES OF INITIATION CRACK ANGLE IN C 50/60 CONCRETE

Popis výsledku anglicky

The maximum tangential stress (MTS) criterion is traditionally used for evaluation of fracture resistance curve and crack initiation angle under mixed mode I/II. In the application of MTS criterion, values of stress intensity factors (SIF) for mode I and II are used. However, the concrete materials consist of matrix and various aggregate sizes, the aggregate size could have influence on the crack initiation angle under the mixed mode I/II. In this paper, a generalized maximum tangential stress (GMTS) criterion is used to investigate the influence of selection of critical distance on the crack initiation angle for concrete C 50/60. Various critical radiuses are investigated (the lengths are selected based on the size of the process zone and on the maximum size of coarse and fine aggregate). The numerically obtained results are discussed and compared with experimental results. The predicted results of GMTS criterion for a suitably chosen distance in different mixed mode conditions show good agreement with the available experimental ones.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LO1408" target="_blank" >LO1408: AdMaS UP - Pokročilé stavební materiály, konstrukce a technologie</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Anales de Mecánica de la Fractura

ISBN

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ISSN

0213-3725

e-ISSN

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Počet stran výsledku

4

Strana od-do

445-448

Název nakladatele

Grupo Español de Fractura

Místo vydání

Malaga, Španělsko

Místo konání akce

Malaga

Datum konání akce

13. 3. 2018

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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