Assessment of concrete fracture and fatigue damage across multiple load regime

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F26%3A0200068" target="_blank" >RIV/00216305:26110/26:0200068 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2452321625005281" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2452321625005281</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2025.10.033" target="_blank" >10.1016/j.prostr.2025.10.033</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Assessment of concrete fracture and fatigue damage across multiple load regime

Popis výsledku v původním jazyce

Concrete structures form an essential part of the local and global infrastructure, and their lifespan is usually measured in decades. Many structures such as highway and railroad bridges, railway sleepers, offshore structures and wind turbine foundations are exposed to repeated load and often fail due to fatigue rupture of concrete. Furthermore, the fatigue design of a structure is considered for the ultimate limit state (ULS), while the serviceability limit state (SLS) is missing, i.e., the assessment of the crack width wc, crack length l, and deflection δ. This missing SLS fatigue consideration in standards may lead to an unoptimized structure, which may eventually result in a visible damage of load-bearing structural components. This contribution focusses on the damage assessment of concrete fatigue failure with the whole range of fatigue regimes, i.e. static fracture, low-cycle to high-cycle with more than 1×104 loading cycles. The results of the experimental tests are presented in form of a S-N curve, a load-CMOD curve, a damage-CMOD curve and are providing useful information for future structural design. Additionally, acquisition of CMOD during the cyclic loading allowed for evaluation of the fatigue crack growth rate by Paris’ law.

Název v anglickém jazyce

Assessment of concrete fracture and fatigue damage across multiple load regime

Popis výsledku anglicky

Concrete structures form an essential part of the local and global infrastructure, and their lifespan is usually measured in decades. Many structures such as highway and railroad bridges, railway sleepers, offshore structures and wind turbine foundations are exposed to repeated load and often fail due to fatigue rupture of concrete. Furthermore, the fatigue design of a structure is considered for the ultimate limit state (ULS), while the serviceability limit state (SLS) is missing, i.e., the assessment of the crack width wc, crack length l, and deflection δ. This missing SLS fatigue consideration in standards may lead to an unoptimized structure, which may eventually result in a visible damage of load-bearing structural components. This contribution focusses on the damage assessment of concrete fatigue failure with the whole range of fatigue regimes, i.e. static fracture, low-cycle to high-cycle with more than 1×104 loading cycles. The results of the experimental tests are presented in form of a S-N curve, a load-CMOD curve, a damage-CMOD curve and are providing useful information for future structural design. Additionally, acquisition of CMOD during the cyclic loading allowed for evaluation of the fatigue crack growth rate by Paris’ law.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

Procedia Structural Integrity

ISBN

—

ISSN

—

e-ISSN

2452-3216

Počet stran výsledku

6

Strana od-do

50-44

Název nakladatele

Elsevier

Místo vydání

Online

Místo konání akce

Brno

Datum konání akce

23. 6. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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