薄型PVC材料断裂痕迹分形维数的研究  

The Study of Fractal Dimensions of Crack in Thin PVC Slice

作　　者：杨爱明[1] 陈钢[1] 欧阳明[1] 林理忠[2] 

机构地区：[1]云南大学实验中心,云南昆明650091 [2]云南大学物理系,云南昆明650091

出　　处：《云南大学学报（自然科学版）》2001年第3期199-200,共2页Journal of Yunnan University(Natural Sciences Edition)

基　　金：云南省教委应用基础研究基金资助项目 (99-4 )

摘　　要：用投影及图像处理提取薄型聚氯乙烯 (PVC)材料断口的轮廓线 ,通过改变图像分析仪中观察码尺分辨率的方法研究该材料断裂痕迹的分形特性 .用该方法测定了 15条PVC薄片断口轮廓线的分形维数 .结果表明 :由于加工不当引起脆性断裂的PVC薄片断口具有分形结构 .这些材料断裂的分形维数是 0 .99～ 1.183 .The fractal property of the crack for thin PVC slice was studied by different observational resolutions of IMAGE ANALYSISRE.The crack profiles of the thin PVC slice was dawn by projection and image processing.The fractal dimensions of 15 crack profiles of thin PVC slices were determined with this method.The results showed that:The brittle cracks of PVC thin slice were caused by unsitable processing.These brittle cracks had fractal structure.The fractal dimensions of these material cracks are between 0.99—1.183.

关 键 词：分形维数 聚氯乙烯 断裂 投影 图像处理 薄型PVC材料 断口轮廓线 

分 类 号：O632.21[理学—高分子化学] O415.5[理学—化学]