Fatigue resistance of concrete revisited: Wide range data from low-cycle to high-cycle and influence of aggregate on fatigue lifetimes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F26%3A0199930" target="_blank" >RIV/00216305:26110/26:0199930 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S0958946525004767?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0958946525004767?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cemconcomp.2025.106394" target="_blank" >10.1016/j.cemconcomp.2025.106394</a>

Result language

angličtina

Original language name

Fatigue resistance of concrete revisited: Wide range data from low-cycle to high-cycle and influence of aggregate on fatigue lifetimes

Original language description

This paper presents the outcome of an experimental study focused on the investigation of the fatigue fracture behaviour of high-performance concrete (HPC) with granite aggregates under three-point bending. Notched beam specimens were tested under static, low-cycle, and high-cycle regimes to obtain load-CMOD responses, S-N curves, crack propagation and damage accumulation. Key parameters were derived from CMOD-controlled tests, Paris' law fitting, and a compliance-based crack growth approach. Post-test microscopy was used to characterise the fracture process zone (FPZ). The results reveal a cohesive-like law governing the cyclic damage evolution, independent of the initial notch depth. Aggregate bridging and confinement effects from large granite aggregates (Dmax = 22 mm) significantly influenced crack trajectories, delaying failure and enhancing fatigue life. Fatigue crack growth analysis identified distinct propagation phases and multiple apparent threshold stress intensity factors (KI,th), closely linked to the material's meso-structure. The findings suggest that despite accumulated damage, final failure occurs when local conditions reach the fracture toughness of the unfatigued material. This work provides new insights into the role of aggregate type in fatigue performance and proposes a robust methodology for correlating static and cyclic fracture parameters in conventional HPC.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20102 - Construction engineering, Municipal and structural engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2026

Confidentiality

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

Name of the periodical

CEMENT & CONCRETE COMPOSITES

ISSN

0958-9465

e-ISSN

1873-393X

Volume of the periodical

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Issue of the periodical within the volume

166

Country of publishing house

GB - UNITED KINGDOM

Number of pages

17

Pages from-to

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UT code for WoS article

001621582400001

EID of the result in the Scopus database

2-s2.0-105021870007