晶须增强锌铝合金复合材料拉伸断口分形
来源期刊：中国有色金属学报1999年第1期
论文作者：刘越 李会莉 翟玉春 毕敬
文章页码：97 - 100
关键词：复合材料，拉伸断口，分形维数
Key words：composites, tensile fracture, fractal dimension
摘 要：分析研究了挤压复合温度对K2O·6TiO2w/ZA-27合金复合材料的拉伸断口分形维数的影响规律及与拉伸断裂功之间的关系。 研究发现该复合材料的拉伸断口具有统计自相似性， 可以用分形维数来描述， 自相似性的测量步长范围在0.185～3.750μm之间为最佳。 复合材料拉伸断口分形维数同拉伸断裂功之间有较好的对应关系， 分形维数随拉伸断裂功的增加呈线性增大。
Abstract: The tensile properties were measured by using Instron tensile machine. The fracture surface of K2O·6TiO2w/ZA-27 composites was studied by using fractal geometry. The results on fractal dimension of tensile surface showed that the fracture surface of K2O·6TiO2w/ZA-27 composites has statistics self-similar property and can be investigated and described by fractal dimension. There exist good corresponding relations between tensile fracture work of composites and fractal dimension of fracture surface. The micro-mechanism of tensile fracture of composites was also discussed.
