Fracture Behavior of Organic Silicon Rubber at Different Extension Rate

摘要：

Fracture behavior of organic silicon rubber at the extension rate of 100, 300, 500 and 700 mm/min at room temperature was studied in this paper. The fracture surface morphology was observed by scanning electron microscopy (SEM). Effects of different extension rate on the tensile strength tensile fracture behavior and mechanism were investigated. The results showed that fracture of the organic silicon rubber was composed by flat region and rough region, while the rough region was relatively small. With the increasing extension rate, the area of flat region enlarged while rough region decreased, and the secondary cracks appeared when the extension rate reached critical value. The relationship of the tensile strength and elongation with the extension rate were similar, both of which rised and then droped as the extension rate increased, and further studies were needed for the fracture mechanism.

关键词： Organic silicon rubber extension rate fracture morphology tensile property

作者: Liu Xiao Zhang Wei-fang Liu Sheng-wang Hou Wei-guo Ding Mei-li

作者单位: School of Reliability and System Engineering, Beihang University, Beijing 100191, China

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 571-575

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）