Fractal study on fracture surface of PAN-based carbon fiber

摘要：

　　PAN-based carbon fiber is a type of brittle material whose fracture surface has a structure peculiar to brittle materials.The tensile strength of a carbon fiber is determined by the strength of weak links in the fiber to a large extent.Since fracture surface is a type of weak link,the fracture surfaces of PAN-based carbon fibers were investigated in this article.SEM(Scanning Electron Microscopy)micrographs of selected carbon fibers with different tensile strengths were analyzed on computer and the fractal dimen-sions of fracture surfaces were obtained on the basis of fractal theories.The relationship between the tensile strength of PAN-based carbon fiber and the fractal dimension of its fracture surface was demonstrated.

关键词： PAN-based carbon fiber strength fracture surface weak links fractal dimension

作者: Shuiping Liu Shuang Lu Jiajia Fu

作者单位: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University,Sh Key Laboratory of Eco-Textiles,Ministry of Education,Jiangnan University,Wuxi 214122,China

会议类型: 国内会议

会议名称: 第十二届全国新型炭材料学术研讨会

会议地点: 长沙

会议语种:英文

页码: 1-4

在线出版日期: 2015-11-05（万方平台首次上网日期，不代表论文的发表时间）