Multi-scale Computational Modeling on the Equivalent Element Method for Freeze-thaw Damage of Concrete
نویسندگان
چکیده
Frost damage is one of the main reasons for decay concrete in cold regions, which affected by many factors such as freezing temperature, number freeze-thaw cycles (FTCs), pore and aggregate structure, FTCs presents a certain distribution characteristic. In view this, systematic prediction method was established multi-scale method. Firstly, behavior simulated micro-calculation Subsequently, micro-meso-macro multi-step equivalent description damage, element under established. The calculation results model show that characteristic size should be set 10 mm to 20 mm, can satisfy requirements heterogeneous characteristics Weibull at same time. Meanwhile, effects on temperature were discussed, effectiveness verified comparing it with test results, well describe damage.
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ژورنال
عنوان ژورنال: Journal of Advanced Concrete Technology
سال: 2022
ISSN: ['1346-8014', '1347-3913']
DOI: https://doi.org/10.3151/jact.20.703