COMPARISON OF CRACK PATHS BY USING SELECTED CRITERIA IN BRAZILIAN DISC SPECIMEN

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F19%3APU131862" target="_blank" >RIV/00216305:26110/19:PU131862 - 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

COMPARISON OF CRACK PATHS BY USING SELECTED CRITERIA IN BRAZILIAN DISC SPECIMEN

Popis výsledku v původním jazyce

A numerical parametric study of the crack propagation under various level of mixed-mode conditions is evaluated. By focusing of the Linear Elastic Fracture Mechanics (LEFM), the model of concrete Brazilian Disc Test (BDCN) with a central notch is considered and its analysis with defined radius R, force P and material properties is performed. The results are obtained by varying the length a of the central notch and its angle of inclination α with respect to the horizontal axis. The crack growth direction is estimated through three different criteria: the maximum tangential stress (MTS) criterion, the strain energy density (SED) criterion and the crack tip displacement (CTD) criterion. This study involves the classical single-parameter fracture mechanics concept, in which the stress distribution in a cracked specimen is described by the stress intensity factors (SIFs). The Williams solution of the crack-tip stress and displacement fields is taken into account. As a comparison, the solution is also provided with J-Integral. The model is created with the finite element method software ANSYS. Lastly, the crack paths obtained are compared with experimental data.

Název v anglickém jazyce

COMPARISON OF CRACK PATHS BY USING SELECTED CRITERIA IN BRAZILIAN DISC SPECIMEN

Popis výsledku anglicky

A numerical parametric study of the crack propagation under various level of mixed-mode conditions is evaluated. By focusing of the Linear Elastic Fracture Mechanics (LEFM), the model of concrete Brazilian Disc Test (BDCN) with a central notch is considered and its analysis with defined radius R, force P and material properties is performed. The results are obtained by varying the length a of the central notch and its angle of inclination α with respect to the horizontal axis. The crack growth direction is estimated through three different criteria: the maximum tangential stress (MTS) criterion, the strain energy density (SED) criterion and the crack tip displacement (CTD) criterion. This study involves the classical single-parameter fracture mechanics concept, in which the stress distribution in a cracked specimen is described by the stress intensity factors (SIFs). The Williams solution of the crack-tip stress and displacement fields is taken into account. As a comparison, the solution is also provided with J-Integral. The model is created with the finite element method software ANSYS. Lastly, the crack paths obtained are compared with experimental data.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

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

2019

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

2

Strana od-do

466-467

Název nakladatele

Grupo Espanol de Fratura

Místo vydání

Sevilla

Místo konání akce

Seviila

Datum konání akce

3. 4. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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