@Article{sdhm.2024.052869,
AUTHOR = {Huayi Zhang, Maobin Song, Lei Shen, Nizar Faisal Alkayem, Maosen Cao},
TITLE = {Discrete Numerical Study on Type II Fracture of Partially Detached Concrete Panels in Cold Region},
JOURNAL = {Structural Durability \& Health Monitoring},
VOLUME = {19},
YEAR = {2025},
NUMBER = {1},
PAGES = {55--75},
URL = {http://www.techscience.com/sdhm/v19n1/58619},
ISSN = {1930-2991},
ABSTRACT = {The concrete panel of earth-rock dams in cold regions tends to crack due to the combination effect of non-uniform foundation settlement, ice expansion loads, and freeze-thaw damage. In this work, simulations are designed to investigate the effects of freeze-thaw damage degrees on the fracture behavior caused by the partial detachment and ice expansion loads on concrete panels. Results show that the range of detached panels and freeze-thaw damage degree are the dominant factors that affect the overall load-bearing capacity of the panel and the failure cracking modes, whereas the panel slope is a secondary factor. The failure cracking modes are found to be a combination of type II fracture modes, including compression-shear and tension-shear cracking. Besides, with the increase of detachment area and the degree of freezing-thawing damage, the concrete panels are prone to appear bending tension cracks at the bottom and a more serious smeared crack layer at the top.},
DOI = {10.32604/sdhm.2024.052869}
}