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Discrete Numerical Study on Type II Fracture of Partially Detached Concrete Panels in Cold Region

Huayi Zhang1, Maobin Song2, Lei Shen1,*, Nizar Faisal Alkayem1, Maosen Cao3

1 College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing, 210024, China
2 Haihe River, Huaihe River and Xiaoqinghe River Basin Water Conservancy Management and Service Center of Shandong Province, Jinan, 250100, China
3 College of Mechanics and Engineering Science, Hohai University, Nanjing, 211100, China

* Corresponding Author: Lei Shen. Email: email

Structural Durability & Health Monitoring 2025, 19(1), 55-75. https://doi.org/10.32604/sdhm.2024.052869

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.

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APA Style
Zhang, H., Song, M., Shen, L., Alkayem, N.F., Cao, M. (2025). Discrete numerical study on type II fracture of partially detached concrete panels in cold region. Structural Durability & Health Monitoring, 19(1), 55-75. https://doi.org/10.32604/sdhm.2024.052869
Vancouver Style
Zhang H, Song M, Shen L, Alkayem NF, Cao M. Discrete numerical study on type II fracture of partially detached concrete panels in cold region. Structural Durability Health Monit . 2025;19(1):55-75 https://doi.org/10.32604/sdhm.2024.052869
IEEE Style
H. Zhang, M. Song, L. Shen, N.F. Alkayem, and M. Cao, “Discrete Numerical Study on Type II Fracture of Partially Detached Concrete Panels in Cold Region,” Structural Durability Health Monit. , vol. 19, no. 1, pp. 55-75, 2025. https://doi.org/10.32604/sdhm.2024.052869



cc Copyright © 2025 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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