Aging life evaluation of a new carbon fiber composite core wire

1st International Conference on New Material and Chemical Industry

材料科学;化学工业

Cao, Jiangming^1 ; Wang, Zhihua^1 ; Zhang, Yongbo^1 ; Fu, Huimin^1

School of Aeronautic Science and Engineering, Beihang University, Beijing

100191, China^1

关键词: Accelerated creep tests;    Carbon fiber composite;    Composite core;    Life evaluation;    Long term creep;    Long-term deformation;    Overhead transmission lines;    Time temperature;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/167/1/012054/pdf
DOI  :  10.1088/1757-899X/167/1/012054

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The carbon fiber composite core wire is the key component for new overhead transmission lines in the power industry. As the primary load-bearing member, the composite mandrel will produce long-term creep because of the tensile during operation. Therefore, designers need to understand the long-term deformation behaviour of the composite mandrel to assess its durability. To this end, an accelerated creep test on the composite core rod under different temperatures and stresses has been conducted in the current study. According to the time- temperature- stress superposition principle, the shift factors are calculated, and the creep under normal working condition is predicted. Results show that the carbon fiber composite core wire can satisfy the design requirements under normal working condition.