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混凝土材料断裂韧度分形尺寸效应
Size Effect of Fractal Fracture Toughness of Concrete Material
【摘要】 根据混凝土材料裂纹的分形特性,分析了混凝土的断裂韧度与裂纹带高度之间的变化关系。结合裂纹弯折扩展模型,计算了裂纹分形维数,提出了分形断裂韧度的理论模型,并与实验结果进行了验证。
【Abstract】 Based on the fractal characteristic of concrete material,the relation between fracture toughness and height of crack zone is analyzed.Joined with the kinked model,fractal dimension of crack is calculated,the theoretic model of fractal fracture toughness is proposed and is verified with the results of experiment.
【关键词】 混凝土材料;
分形;
断裂韧性;
弯折模型;
尺寸效应;
【Key words】 concrete material; fractal; fracture toughness; kinked model; size effect;
【Key words】 concrete material; fractal; fracture toughness; kinked model; size effect;
- 【文献出处】 安徽工业大学学报(自然科学版) ,Journal of Anhui University of Technology(Natural Science) , 编辑部邮箱 ,2006年03期
- 【分类号】TU528
- 【被引频次】4
- 【下载频次】226