Fracture process zone development and length assessment under the mixed-mode I/II load analysed by digital image correlation technique

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F23%3A00573987" target="_blank" >RIV/68081723:_____/23:00573987 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26110/23:PU148704

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0008884623001758?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0008884623001758?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cemconres.2023.107261" target="_blank" >10.1016/j.cemconres.2023.107261</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fracture process zone development and length assessment under the mixed-mode I/II load analysed by digital image correlation technique

Popis výsledku v původním jazyce

In this paper, the fracture process zone (FPZ) of high-performance concrete (HPC) is investigated under mixed-mode I/II load conditions, and its formation is studied by applying digital image correlation (DIC). The experimental tests are performed on Brazilian disc specimens with central notch (BDCN). The traction-free crack and the FPZ extent ahead of the crack are localised. This is done by modification of the existing methodology for mode I cracks to account for various mixed-mode I/II loading conditions. Analytical and linear elastic fracture mechanics (LEFM) methods for the critical strain are used to find the FPZ extension. Lastly, this paper revisits the analytical formulas used in the prediction of mode I FPZ lengths. These formulas are adjusted to allow for the prediction of the FPZ length in the whole range of mixed-mode I/II load conditions. Experimental results show that the FPZ has a different size for various mixed-mode I/II load conditions.

Název v anglickém jazyce

Fracture process zone development and length assessment under the mixed-mode I/II load analysed by digital image correlation technique

Popis výsledku anglicky

In this paper, the fracture process zone (FPZ) of high-performance concrete (HPC) is investigated under mixed-mode I/II load conditions, and its formation is studied by applying digital image correlation (DIC). The experimental tests are performed on Brazilian disc specimens with central notch (BDCN). The traction-free crack and the FPZ extent ahead of the crack are localised. This is done by modification of the existing methodology for mode I cracks to account for various mixed-mode I/II loading conditions. Analytical and linear elastic fracture mechanics (LEFM) methods for the critical strain are used to find the FPZ extension. Lastly, this paper revisits the analytical formulas used in the prediction of mode I FPZ lengths. These formulas are adjusted to allow for the prediction of the FPZ length in the whole range of mixed-mode I/II load conditions. Experimental results show that the FPZ has a different size for various mixed-mode I/II load conditions.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

<a href="/cs/project/GA21-08772S" target="_blank" >GA21-08772S: Vliv samovyhojovacích účinků na prodloužení životnosti konstrukcí vyrobených z vysokohodnotného betonu</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Cement and Concrete Research

ISSN

0008-8846

e-ISSN

1873-3948

Svazek periodika

173

Číslo periodika v rámci svazku

NOV

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

22

Strana od-do

107261

Kód UT WoS článku

001047698400001

EID výsledku v databázi Scopus

2-s2.0-85165661437