Journal
THEORETICAL AND APPLIED FRACTURE MECHANICS
Volume 118, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.tafmec.2022.103280
Keywords
Concrete; Damage; Stochastic softening curve; Crack; Fracture process zone
Categories
Funding
- National Natural Science Foundation of China [52022027, 51779069]
- Natural Science Foundation ofHebei Province [E2020202151]
- Key Project of University Science and Technology Research of Hebei Province [ZD2019072, ZD2020190]
Ask authors/readers for more resources
In this study, the stochastic characteristics of the fracture process zone (FPZ) of concrete are analyzed. The impacts of specimen size on the critical crack opening displacement, the distribution of cohesive stress, and the critical length of FPZ are studied. The results show that the critical crack tip opening displacement CTODc and critical length of FPZ increased with the specimen size, whereas the critical cohesive stress at the tip of the initial crack decreased with the specimen size. The dispersion of the variance of critical crack tip opening displacement CTODc and the critical length of FPZ also increased with the specimen size.
In this study, the stochastic characteristics of the fracture process zone (FPZ) of concrete are analysed. The impacts of specimen size on the critical crack opening displacement, the distribution of cohesive stress, and the critical length of FPZ are studied, and calculations are performed for the stochastic energy consumption curves of concrete. The dispersion of the variance of critical crack tip opening displacement CTODc and the critical length of FPZ are obtained. Combined with the existing experiments, comparative verification is performed. The results show that the critical crack tip opening displacement CTODc and critical length of FPZ increased with the specimen size, whereas the critical cohesive stress at the tip of the initial crack decreased with the specimen size. The dispersion of the variance of critical crack tip opening displacement CTODc and the critical length of FPZ increased with the specimen size.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available