Size effect of steel fiber-reinforced concrete cylinders under compressive fatigue loading: Influence of the mesostructure

被引：16

作者：

Gonzalez, Dorys C. ^{[1
]}

Mena, Alvaro ^{[1
]}

Ruiz, Gonzalo ^{[2
]}

Ortega, Jose J. ^{[3
]}

Poveda, Elisa ^{[2
]}

Minguez, Jesus ^{[1
]}

Yu, Rena ^{[2
]}

De la Rosa, Angel ^{[2
]}

Vicente, Miguel A. ^{[1
]}

机构：

[1] Univ Burgos, Dept Civil Engn, Villadiego S-N, Burgos 09001, Spain

[2] Univ Castilla La Mancha, ETSI Caminos CyP, Av Camilo Jose Cela S-N, Ciudad Real 13071, Spain

[3] Univ Politecn Madrid, ETSI Minas & Energia, Alenza 4, Madrid 28003, Spain

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2023年 / 167卷

关键词：

Size effect in fatigue; Steel fiber-reinforced concrete; Computed tomography; Mesostructure; TARGET PLASTIC VISCOSITY; HIGH-STRENGTH CONCRETE; COMPUTED-TOMOGRAPHY; PORE MORPHOLOGY; BEHAVIOR; PLAIN; FRACTURE; DESIGN; MICROSTRUCTURE; QUASIBRITTLE;

D O I：

10.1016/j.ijfatigue.2022.107353

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This study deals with the influence of the fiber concrete mesostructure on the size effect under compressive fatigue loading. For this purpose, three series of cylindrical specimens of steel fiber-reinforced concrete were fabricated. Before fatigue testing, all the cylinders were scanned and the main morphological, orientation, and distribution parameters of the pores and fibers were checked. The images reveal that, near the cylinders' walls, the porosity is lower than that in the cores and is even lower for large sizes. Additionally, larger specimens are more vulnerable to compressive fatigue loading, resulting in a reduction in fatigue life.

引用

页数：18

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