Rapid lifetime evaluation of hybrid composite rods by creep behavior

摘要：

　　Abastract.Hybrid composite rods, comprised of unidirectional reinforcing carbon/glass-fiber and adhesive epoxy matrix, are viewed as promising candidates to be used in high-voltage overhead conductors.However, before widespread application, their long-term durability needs to be clarified.In this study, accelerated creep testing for hybrid composite rods, is presented by taking dynamic mechanical analysis tests at different temperatures.Using the time-temperature superposition principle and thermal activation energy theory, the short-term creep data are combined to generate creep long-term compliance master curves.Through the master curve, predictions can be made concerning the creep levels that will occur during the design lifetime of hybrid composite rods (i.e.,30 years).It is found that after 30-year service at 120 ℃, fully-cured hybrid composite rods only exhibit a slight increase in compliance (about 5%), indicating a satisfactory creep resistance at this temperature.

关键词： Hybrid composite rods Accelerated creep testing Time-temperature superposition principle Thermal activation energy theory

作者: Feng-tao Lan Ye-wen Cao Ying-nan Wang Xin Chen Chong Zhang

作者单位: Smart Grid Research Institute, Beijing 102401, China Department of Epoxy Systems, Dow Chemical (China) Investment Co.Ltd., Shanghai 201203, China Shenyang power supply company, Shenyang 100811, China

会议类型: 国际会议

会议名称: The Eighth China National Conference on Functional Materials and Applications(第八届中国功能材料及其应用学术会议)

会议地点: 哈尔滨

会议语种:英文

页码: 373-378

在线出版日期: 2013-08-23（万方平台首次上网日期，不代表论文的发表时间）