Assessment of fatigue resistance of concrete: S-N curves to the Paris’ law curves
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F22%3APU144558" target="_blank" >RIV/00216305:26110/22:PU144558 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68081723:_____/22:00558428 RIV/61989100:27120/22:10250605
Výsledek na webu
<a href="https://www.sciencedirect.com/science/article/pii/S0950061822014842" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0950061822014842</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.conbuildmat.2022.127811" target="_blank" >10.1016/j.conbuildmat.2022.127811</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Assessment of fatigue resistance of concrete: S-N curves to the Paris’ law curves
Popis výsledku v původním jazyce
Fatigue behaviour of concrete materials is often investigated on un-notched specimens under the compressive or bending loads. In this experimental study, a notched three-point bending (TPB) specimen is used in high-cycle fatigue experiments to obtain the Wohler’s curve. Based on this approach, a novel, yet relatively simple transition from the traditional Wohler’s curve to the Paris’ law curve is proposed. Such a methodology allows one to obtain the Paris’ law material constants, which are used to determine the fatigue failure of the structure or a component. The constants of the experimentally determined material, measured in four different concrete mixtures, have been verified by recalculating the number of cycles until the fatigue failure Nf by the integration of the Paris’ law equation. The back-calculated number of cycles and the approximation of the S-N curve allowed for a comparison with the experimental data. Furthermore, the initial notch tip was extended in this approximation by the value of the critical distance. Such an extension allowed us to cover a wide range of the experimental data and provided a better prediction of fatigue life. The proposed method was verified on all four studied materials and showed satisfactory results.
Název v anglickém jazyce
Assessment of fatigue resistance of concrete: S-N curves to the Paris’ law curves
Popis výsledku anglicky
Fatigue behaviour of concrete materials is often investigated on un-notched specimens under the compressive or bending loads. In this experimental study, a notched three-point bending (TPB) specimen is used in high-cycle fatigue experiments to obtain the Wohler’s curve. Based on this approach, a novel, yet relatively simple transition from the traditional Wohler’s curve to the Paris’ law curve is proposed. Such a methodology allows one to obtain the Paris’ law material constants, which are used to determine the fatigue failure of the structure or a component. The constants of the experimentally determined material, measured in four different concrete mixtures, have been verified by recalculating the number of cycles until the fatigue failure Nf by the integration of the Paris’ law equation. The back-calculated number of cycles and the approximation of the S-N curve allowed for a comparison with the experimental data. Furthermore, the initial notch tip was extended in this approximation by the value of the critical distance. Such an extension allowed us to cover a wide range of the experimental data and provided a better prediction of fatigue life. The proposed method was verified on all four studied materials and showed satisfactory results.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20102 - Construction engineering, Municipal and structural engineering
Návaznosti výsledku
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
O - Projekt operacniho programu
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Construction and building materials
ISSN
0950-0618
e-ISSN
1879-0526
Svazek periodika
341
Číslo periodika v rámci svazku
2
Stát vydavatele periodika
GB - Spojené království Velké Británie a Severního Irska
Počet stran výsledku
18
Strana od-do
1-18
Kód UT WoS článku
000806356700003
EID výsledku v databázi Scopus
2-s2.0-85131216080