Test and fracture toughness analysis for static ice pressure of reservoir slope

被引：0
|
作者：
机构：
[1] Key Lab. for Prediction and Control on Complicated Struct. Syst. of Educ. Dept. of Liaoning Province, Dalian University
[2] Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences
[3] Institute of Bridge Engineering, Dalian University of Technology
来源：
Tan, Y.-G. (ygtan@dlut.edu.cn) | 1600年 / Tsinghua University卷 / 30期
关键词：
Ductile-brittle transition; Fracture mechanics; Fracture toughness; Strain rate; Wing type crack;
D O I：
10.6052/j.issn.1000-4750.2011.12.0855
中图分类号：
学科分类号：
摘要：
Fracture mechanics has been introduced to study some practical engineering problems about Typical reservoir located in Shenyang. From the point of view of fracture mechanics, the main reasons of freezing damage to the reservoir slope are analyzed. For ice, strength is very sensitive to strain rate ε̇, fracture mechanics experiments which meet brittle failure theory have been conducted in the condition of ε̇ > ε̇R. Based on testing results, the fracture toughness KIC and GC are obtained. Numerical solutions obtained from semi-analytical finite element methods are close to the results mentioned above, which proves this theoretical model as well as the research method is reasonable and effective. It makes significant attempt for research on avoiding freezing damage to reservoir slope in seasonal frozen soil region. The conclusion may serve as reference to the design of reservoir slopes.
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页码：112 / 117+124
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