Fracture evolution in concrete compressive fatigue experiments based on X-ray micro-CT images

被引：33
|
作者：
Skarzynski, L. [1 ]
Marzec, I [1 ]
Tejchman, J. [1 ]
机构：
[1] Gdansk Univ Technol, Fac Civil & Environm Engn, Gdansk, Poland
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2019年 / 122卷
关键词：
Micro-CT; Plain concrete; Cyclic compression; Fatigue; Fracture; HIGH-STRENGTH; COHESIVE ELEMENTS; AGGREGATE LEVEL; DAMAGE MODEL; BEHAVIOR; PLAIN; DEM;
D O I：
10.1016/j.ijfatigue.2019.02.002
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This study examines the fatigue performance of plain concrete specimens under uniaxial compression. The experimental program was developed for investigating the fracture evolution in concrete cubic specimens subjected to cyclic compression using the advanced X-ray micro-computed tomography system SkyScan 1173. As compared to other experiments, the 3D micro-CT damage images were shown for a various number of loading cycles. The quantitative evolution of the cracking volume with increasing fatigue damage revealed a strongly non-linear shape. The increase of the total crack volume was higher by 30% as compared to the monotonic fatigue test.
引用
收藏
页码：256 / 272
页数：17
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