架空导线用碳纤维复合芯棒拉伸破坏形式分析
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摘要
为确保架空导线用碳纤维复合芯棒在电网中的安全稳定运行,提高其性能检验技术,借助三维绘图和有限元等软件对碳纤维复合芯棒的拉伸断裂破坏形式进行了仿真分析。结果表明,模拟与试验结果相近,碳纤维复合芯棒拉伸时破坏首先发生在碳纤维层,然后是玻璃纤维层,破坏的主要形式为分层崩裂。研究结果可为碳纤维复合芯棒制造工艺、试验方法、工程应用等提供技术理论支撑依据。
In order to ensure the safe and stable operation of power grid which uses carbon fiber composite cores in overhead conductors,and improve the performance testing technology, simulation analysis is made on the tensile failure mode of carbon fiber composite core with aid of 3D drawing and finite element software, which shows that the tensile failure occurs firstly in the carbon fiber layer, then in the glass fiber layer, and mainly in the form of delamination. The simulation result is very close to the testing result. This study results can provide technical & theoretic support for manufacturing process, testing method and engineering application of the carbon fiber composite core.
In order to ensure the safe and stable operation of power grid which uses carbon fiber composite cores in overhead conductors,and improve the performance testing technology, simulation analysis is made on the tensile failure mode of carbon fiber composite core with aid of 3D drawing and finite element software, which shows that the tensile failure occurs firstly in the carbon fiber layer, then in the glass fiber layer, and mainly in the form of delamination. The simulation result is very close to the testing result. This study results can provide technical & theoretic support for manufacturing process, testing method and engineering application of the carbon fiber composite core.
引文
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[2]尤传永.增容导线在架空输电线路上的应用研究[J].电力设备,2006,7(10):1-7.YOU Chuan-yong.Application and research of augmented capacity conductor on overhead power transmission line[J].Electrical Equipment,2006,7(10):1-7.
[3]余虹云,俞成彪,李瑞.电力线路器材应用与检测[M].北京:中国电力出版社,2007:50-51.
[4]GB/T 20141—2006型线同心绞架空导线[S].
[5]黄崇祺,冯锦泉,李文浩,等.架空电力线路大容量导线[J].电力建设,2005,26(1):2-5.HUANG Chong-qi,FENG Jin-quan,LI Wen-hao,et al.Large-capacity conductor for overhead transmission lines[J].Electric Power Construction,2005,26(1):2-5.
[6]余虹云.碳纤维导线负荷与温度关系的试验研究[J].浙江电力,2008,27(4):25-28.YU Hong-yun.Apply and research between load and temperature of aluminum conductor composite core[J].Zhejiang Electric Power,2008,27(4):25-28.
[7]李瑞,余虹云,余长水,等.碳纤维复合芯铝导线应用时需注意的问题[J].电力设备,2008,9(5):73-75.LI Rui,YU Hong-yun,YU Chang-shui,et al.Some questions should be paid attention on ACCC in application[J].Electrical Equipment,2008,9(5):73-75.
[8]王清葵.送电线路运行和检修[M].北京:中国电力出版社,2005.
[9]李瑞,余虹云,余长水,等.ACCC导线芯棒高温“竹节”现象浅析[J].电力建设,2008,29(6):22-25.LI Rui,YU Hong-yun,YU Chang-shui,et al.Analysis of ACCC Conductor’s“Bamboo”Effect at High Temperature[J].Electric Power Construction,2008,29(6):22-25.
[10]ROYLANCE D.复合材料导论.MA02139[M].剑桥:麻省理工学院,2000.
[11]余虹云.耐热导线应用技术[M].北京:中国电力出版社,2008:89-90.
[12]GB/T 2317.1—2008电力金具试验方法第1部分:机械试验[S].